Accessories for R900908877

DIRECTIONAL SPOOL VALVE 4WE6Y6X/EG24N9K4/B12

Manufacturer: Bosch Rexroth

Material #: R900908877

Model : 4WE6Y6X/EG24N9K4/B12

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 4WE6Y6X/EG24N9K4/B12 (R900908877) is a high-performance industrial hydraulic valve designed for reliable operation in a variety of applications. This directional spool valve, size 6, is direct-actuated with solenoid actuation and features a Y spool symbol, indicating its function in controlling the start, stop, and direction of flow. The valve operates with a maximum pressure of 350 bar and offers both DC maximum flow rates of 80 l/min at port D and 60 l/min at port A. Equipped with an electrical connection that includes a connector pole PE according to EN 175301-803-A, this model is designed for easy integration into existing systems. It has four ports and two switching positions, providing flexibility for various circuit configurations. The supply voltage required for the solenoid coil is 24 VDC. The Bosch Rexroth valve boasts several features that enhance its functionality and durability. It has NBR seals compatible with numerous hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC. An auxiliary actuation mechanism allows manual operation without power supply to the electromagnet. Additionally, there's an option for spool position monitoring which adds an extra layer of control. This particular model conforms to CE standards for low-voltage directive EU when dealing with electrical voltages greater than 50 VAC or greater than 75 VDC. Its solenoid coil comes with an UR marking according to UL508, edition 18 – optional approval by CSA C22.2 No.14 also available. Overall, the Bosch Rexroth 4WE6Y6X/EG24N9K4/B12 valve is engineered for robust performance in demanding industrial environments where precise control of hydraulic flow is necessary. Its various certifications ensure compatibility and safety across international markets.

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DIRECTIONAL SPOOL VALVE 4WE6Y6X/EG24N9K4/B12

Size 6, symbol Y, electrical with solenoid, 24 V DC

Industrial hydraulic valve in a high performance range. Reliable switching of the oil flow direction according to hydraulic symbol.

Unpacked Weight: 1.460 kg

4/3-, 4/2- or 3/2-way version Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole) High-power solenoid, optionally rotatable by 90° Electric connection as single or central connection Optional auxiliary operating device Spool position monitoring, optional CE conformity according to the Low-Voltage Directive 2014/35/EU for electrical voltages >50 VAC or >75VDC Solenoid coil as approved component with UR marking according to UL 906, edition 1982, optional Approval according to CSA C22.2 no. 139-1982, optional

Directional valves type WE are solenoid-operated directional spool valves and can be used as electromagnetic components. They control the start, stop and direction of a flow.

The directional valves essentially consist of the housing (1), one or two electromagnets (2), the control spool (3) and the return springs (4).

In the de-energized state, the control spool (3) is held in the middle or initial position by the return springs (4) (except version “O”).

When the electromagnet (2) switching in oil is energized, the control spool (3) moves from its rest position to the desired end position. This releases the required flow direction according to the selected symbol.

After switching off the electromagnet (2), the control spool (3) is pushed back to the middle or initial position (except for valve with detent “OF” and valve without spring type “O”).

An auxiliary actuation (5) enables the valve to be switched manually without magnet supply.

The hydraulic system must be properly vented to ensure proper function.

Without spring return “O” (only possible with symbols A, C and D)

This version is a directional valve with two switching positions and two electromagnets without detent. The valve without spring return on the control spool (3) has no defined basic position when de-energized.

Without spring return with detent “OF” (only possible for symbols A, C and D)

This version is a directional valve with two switching positions and two electromagnets with detent. The control spool (3) is fixed in the respective switching position by the detents. During operation, the permanent current supply to the electromagnet can thus be omitted, which contributes to energy-efficient operation.

Version “.73...A12” (soft switching behavior)

The composition of the control spools and solenoids greatly reduces the number of switching strokes that occur when the valves are switched on or off. The switching strokes, measured as acceleration values a, can be reduced by approx. 85 % compared to the standard valve, depending on the version of the control spool (see “Acceleration values”).

Notices:

Pressure peaks in the drain line to two or more valves may cause unintentional control spool movements in the version with detent. It is recommended to lay separate return lines or to install a check valve in the drain line.

Due to the design principle, the valves are subject to internal leakage, which can increase during the service life.

Type 4WE 6 E6X/...E...

Throttle insert

The use of a throttle insert is required when, due to prevailing operating conditions, flows occur during the switching processes which exceed the performance limit of the valve.

Spool valve
Direct actuated
Maximum flow (AC) 60 l/min
Maximum operating pressure 350 bar
Maximum flow (DC) 80 l/min
Size 6
Component series 6X

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Connection diagram	ISO 4401-03-02-0-05
Max. pressure	350
Max. flow	70
Spool symbol	Symbol Y
Size	6
Type of actuation	with solenoid actuation
Number of ports	4
Number of switching positions	2
Supply voltage	24 VDC
Electrical connector	Connector 3-pole (2 + PE)
Electrical connection description	Connector 3-pole (2 + PE) according to EN 175301-803
Hydraulic fluid	HL,HLP,HLPD,HVLP,HVLPD,HFC
Seals	NBR
Productgroup ID	9,10,11,12,13,14
Connection diagram NFPA	NFPA T3.5.1 R2-2002 D03
Size_CETOP	D03
Weight	1.460

01	02	03	04	05		06	07	08	09	10	11	12		13	14	15	16	17	18	19	20	21
	WE	6		6X	/		E						/									*

01	3 main ports									3
	4 main ports									4
02	Directional valve									WE
03	Size 6									6
04	Symbols; for the possible version, see "Symbols/Circuit diagrams"
05	Component series 60 … 69 (60 … 69: unchanged installation and connection dimensions)									6X
06	With spring return									no code
	Without spring return									O
	Without spring return with detent									OF
07	High-power solenoid, wet-pin, with detachable coil									E
Electrical voltages
08	For ordering code see "Electrical connections and available voltages" below.									e.g. G24
Manual override 1)
09	Without manual override									no code
	With manual override									N 3)
	With manual override "mushroom button" (small)									N2 3)
	With lockable manual override "mushroom button" (small)									N4 2; 3)
	With lockable manual override "mushroom button" (large)									N5 2); 3; 4)
	With manual override "mushroom button" (large), not lockable									N6 3; 4)
	With lockable manual override "nut"									N72; 3)
	With concealed manual override (standard)									N9
Corrosion resistance (outside) (for the availability, refer to the following table)
10	None (valve housing primed)									no code
	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)									J3
	High corrosion protection (720 h salt spray test according to EN ISO 9227)									J5
Electrical connection
11	Individual connection or central connection
	For ordering code see "Electrical connections and available voltages" below.									e.g. K4
Spool position monitoring (For more information, see data sheet 24830)
12	Without position switch									no code
	Inductive position switch type QM (valves with 2 spool positions)
	Monitored spool position "a"									QMAG24
	Monitored spool position "b"									QMBG24
	Monitored rest position									QM0G24
	Inductive position switch type QR (valves with 3 spool positions)
	Monitored rest position									QM0G24
	Monitored spool position "a" and "b"									QRABG24E
	Inductive position switch type QS
	Monitored spool position "a"									QSAG24W
	Monitored spool position "b"									QSBG24W
	Monitored spool position "0"									QS0G24W
	Monitored spool position "0" and "a"									QS0AG24W
	Monitored spool position "0" and "b"									QS0BG24W
	Monitored spool position "a" and "b"									QSABG24W
Switching time increase
13	Without switching time increase									no code
	With switching time increase (only with direct voltage and only with version "N9" and symbol "73")									A12
Throttle insert
14	Without throttle insert (standard)									no code
	With throttle insert (when the admissible valve performance limit is exceeded, refer to "Performance limits"):
	Connection	Throttle Ø in mm
		0,6 mm	0,8 mm	1,0 mm	1,2 mm	1,5 mm	2,0 mm	2,5 mm	3,0 mm	4,0 mm
	P	= B06	= B08	= B10	= B12	= B15	= B20	= B25	= B30	= B40
	A	= H06	= H08	= H10	= H12	= H15	= H20	= H25	= H30	= H40
	B	= R06	= R08	= R10	= R12	= R15	= R20	= R25	= R30	= R40
	A and B	= N06	= N08	= N10	= N12	= N15	= N20	= N25	= N30	= N40
	T	= X06	= X08	= X10	= X12	= X15	= X20	= X25	= X30	= X40
Clamping length
15	42 mm (standard)									no code
	22 mm									Z
Control spool play
16	Standard (recommended)									no code
	Minimum (selection for reduced leakage values; higher oil cleanliness required)									T06
	Increased (selection with high temperature difference hydraulic fluid/environment; leads to higher internal leakage values)									T12
Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data")
17	NBR seals									no code
	FKM seals									V
	Recommended for operation with HFC hydraulic fluids together with high temperatures									MH
	Low-temperature version (only with version "Without manual override")									MT
18	Standard									no code
	Solenoid coil as approved component with UR marking according to UL 906, edition 1982 5)									= UR
	Approval according to CSA C22.2 no. 139-1982									= CSA
	Porting pattern according to ANSI B93.9 6)									= AN
19	Without locating hole									no code
	With locating hole and locking pin ISO 8752-3x8-St									/62
20	Standard									no code
	With reduced electric power consumption (only versions "G24" as well as "K4", "DL" and "DKL")									SO407
21	Further details in the plain text									*

1)	Operation of the manual override only possible up to 50 bar [725 psi] tank pressure. Avoid damage to the bore of the manual override. (Special tool for the operation, separate order, material no. R900024943). If the manual override is blocked, operation of the opposite solenoid is to be excluded. The manual override cannot be allocated a safety function.
2)	With tank pressures higher than 50 bar, it is not guaranteed that the valve remains in the position into which it was switched by the lockable manual override ("N4", "N5", "N7").
3)	Only direct voltage; not for version "= UR"
4)	Only direct voltage; not for version "SO407"
5)	Only for version "K4" with "G12", "G24" and "W110"
6)	With power supply to - solenoid "a", channel P is connected to a - solenoid "b", channel P is connected to B

Available corrosion resistance

	Electrical connection							Manual override
	"K4"		"DL"		"K40", "C4"			Manual override
	"G12"	"G24"	"G24"	"G48"	"G12"	"G24"	"G26"	Ohne	"N"
"J3"	✔	✔	✔	✔	-	-	-	✔	✔
"J5"	-	-	-	-	✔	✔	✔	✔	✔

Electrical connections and available voltages

(special voltages upon request)

DC voltage – individual connection

Connector		Ordering code	Electrical voltages									Protection class according to DIN EN 60529 1)	Protection class according to VDE 0580
			12 V	24 V	26 V	48 V	96 V	110 V	125 V	205 V	220 V
			Ordering code
			G12	G24	G26	G48	G96	G110	G125	G205	G220
3-pole connector (2+PE) according to DIN EN 175301-803	Standard	K4	✔	✔	-	✔	✔	✔	✔	✔	✔	IP65	I 2)
3-pole connector (2+PE) according to DIN EN 175301-803	With potted-in plug base and sealing element	K4K	✔	✔	✔	-	-	-	-	-	-	IP65	I 2)
Connector 2-pole, DT04-2PA (Deutsch type)		K40	✔	✔	✔	-	-	-	-	-	-	IP65	III 3)
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101, with suppressor diode, coding A	Pin assignment according to DESINA	K72L	-	✔	-	-	-	-	-	-	-	IP65	III 3)
	Standard	K73L	-	✔	-	-	-	-	-	-	-	IP65	III 3)
Connector 2-pole (Junior-Timer type)	Connector parallel to the valve axis	C4	✔	✔	✔	-	-	-	-	-	-	IP65	III 3)
Maximum admissible overvoltages according to DIN EN 60664-1:2008-01 (VDE 0110-1) (overvoltage category II):
Nominal voltage UNom		V	12	24	26	48	96	110	125	205	220
Rated current INom		A	2,5	1,25	1,17	0,66	0,33	0,25	0,17	0,16	0,14
Maximum admissible switch-off overvoltage according to VDE 0580		V	500	500	500	500	500	500	500	500	500
Recommended interference protection circuit with 2 x mains voltage		V	24	48	52	96	192	220	250	410	440

1)	Only with correctly mounted valve with a mating connector suitable for the protection class.
2)	Protection class I with properly connected protective grounding conductor (PE) and valve mounting surface connected to the protective grounding conductor system.
3)	With protection class III, a protective extra-low voltage with isolation transformer (PELV, SELV) is to be provided.

Notice:

DC voltage - central connection

Connector		Ordering code	Electrical voltages							Protection class according to DIN EN 60529 1)	Protection class according to VDE 0580
			12 V	24 V	48 V	96 V	110 V	125 V	220 V
			Ordering code
			G12	G24	G48	G96	G110	G125	G220
Cable gland, terminal area 6 … 12 mm	With indicator light	DL	✔	✔	✔	✔	✔	✔	✔	IP65	I 2)
Cable gland, terminal area 6 … 12 mm	With indicator light and interference protection circuit	DL1	✔	✔	✔	✔	✔	✔	✔	IP65	I 2)
Cable gland, threaded connection 1/2"-14 NPT	With indicator light	DAL	✔	✔	-	-	-	✔	-	IP65	I 2)
Cable gland, threaded connection 1/2"-14 NPT	With indicator light and interference protection circuit	DAL1	✔	✔	-	-	-	✔	-	IP65	I 2)
7-pole connector (6+PE) according to DIN EN 175201-804	With indicator light	DK6L	-	✔	✔	-	✔	✔	✔	IP65	I 2)
7-pole connector (6+PE) according to DIN EN 175201-804	With indicator light and interference protection circuit	DK6L1	-	✔	✔	-	✔	✔	✔	IP65	I 2)
Connector according to ANSI/B93.55M-1981 (Brad Harrison Mini-Change)	With indicator light, 3-pole	DK23L	-	✔	-	-	-	-	-	IP65	I 2)
	With indicator light, 5-pole	DK25L	-	✔	-	-	-	-	-	IP65	I 2)
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101	With indicator light	DK24L	-	✔	-	-	-	-	-	IP65	III 3)
	With indicator light and interference protection circuit	DK24L1	-	✔	-	-	-	-	-	IP65	III 3)
	With indicator light and interference protection circuit	DK35L	-	✔	-	-	-	-	-	IP65	III 3)
Maximum admissible overvoltages according to DIN EN 60664-1:2008-01 (VDE 0110-1) (overvoltage category II):
Nominal voltage UNom		V	12	24	48	96	110	125	220
Rated current INom		A	2,5	1,25	0,66	0,33	0,25	0,17	0,14
Maximum admissible switch-off overvoltage according to VDE 0580		V	500	500	500	500	500	500	500
Recommended interference protection circuit with 2 x mains voltage		V	24	48	96	192	220	250	440

1)	Only with correctly mounted valve with a mating connector suitable for the protection class.
2)	Protection class I with properly connected protective grounding conductor (PE) and valve mounting surface connected to the protective grounding conductor system.
3)	With protection class III, a protective extra-low voltage with isolation transformer (PELV, SELV) is to be provided.

Notice:

Alternating voltage – individual connection

Connector		Ordering code	Electrical voltages										Protection class according to DIN EN 60529 1)	Protection class according to VDE 0580
			100 V 50/60 Hz	100 V 50/60 Hz	110 V 50/60 Hz	110 V 50/60 Hz	120 V 60 Hz	120 V 60 Hz	200 V 50 Hz	200 V 50 Hz	230 V 50/60 Hz	230 V 50/60 Hz
			Ordering code
			G96	W110	G96	W110	G110	W110	G180	W200	G205	W230
3-pole connector (2+PE) according to DIN EN 175301-803	Standard	K4	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	IP65	I 2)
Rectifier required (see "Accessories")			✔	✔	✔	-	✔	-	✔	-	✔	-
Maximum admissible overvoltages according to DIN EN 60664-1:2008-01 (VDE 0110-1) (overvoltage category II):
Nominal voltage UNom		V	100	100	110	110	120	120	200	200	230	230
Rated current INom	50~^&@@&^~Hz	A	0,31	0,56	0,34	0,52	-	-	0,18	0,29	0,16	0,23
Rated current INom	60~^&@@&^~Hz	A	0,31	0,44	0,34	0,39	0,30	0,45	-	-	0,16	0,17
Lower rated current	50~^&@@&^~Hz	A	-	0,65	-	0,6	-	-	-	0,33	-	0,27
Lower rated current	60~^&@@&^~Hz	A	-	0,51	-	0,45	-	0,52	-	-	-	0,2
Upper rated current	50~^&@@&^~Hz	A	-	0,9	-	0,9	-	-	-	0,6	-	0,36
Upper rated current	60~^&@@&^~Hz	A	-	0,9	-	0,6	-	0,9	-	-	-	0,36
Maximum admissible switch-off overvoltage according to VDE 0580		V	500	500	500	500	500	500	500	500	500	500
Recommended interference protection circuit with 2 x mains voltage		V	200	200	220	220	240	240	400	400	460	460

1)	Only with correctly mounted valve with a mating connector suitable for the protection class.
2)	Protection class I with properly connected protective grounding conductor (PE) and valve mounting surface connected to the protective grounding conductor system.

Notices:

Solenoid valves induce voltage peaks during switch-off. In order to prevent electro-magnetic interference at the system and damage to the valve control, an interference protection circuit has to be provided on the system side. Alternatively, you can also select a connector with integrated interference protection circuit. Depending on the rated current INom, circuit breakers according to tripping characteristic "K" are to be provided.
The tripping current must lie within a time interval of 0.6 s with 8 to 10 times the nominal power supply.
The required non-tripping current of the fuse must not fall below the "lower rated current" value (see preceding table). The maximum tripping current must not exceed the "upper rated current" value (see preceding table).
The temperature dependence of the tripping behavior of the circuit breakers has to be considered according to the manufacturer's specifications.

Alternating voltage – central connection

Connector		Ordering code	Electrical voltages								Protection class according to DIN EN 60529 1)	Protection class according to VDE 0580
			100~^&@@&^~V~^&@@&^~50/60~^&@@&^~Hz	110 V 50/60 Hz	110 V 50/60 Hz	120 V 60 Hz	120 V 60 Hz	200 V 50 Hz	230 V 50/60 Hz	230 V 50/60 Hz
			Ordering code
			W100	W110R	W110	W120R	W110	W200	W230R	W230
Cable gland, terminal area 6 … 12 mm	With indicator light	DL	✔	✔	✔	✔	✔	✔	✔	✔	IP65	I 2)
	With indicator light and interference protection circuit	DL1	✔	✔	✔	✔	✔	✔	✔	✔	IP65	I 2)
	With indicator light and interference protection circuit 3)	DJL	✔	-	-	-	-	✔	-	-	IP65	I 2)
Cable gland, threaded connection 1/2"-14 NPT	With indicator light	DAL	✔	✔	✔	✔	✔	-	✔	✔	IP65	I 2)
Cable gland, threaded connection 1/2"-14 NPT	With indicator light and interference protection circuit	DAL1	-	✔	✔	✔	✔	-	✔	✔	IP65	I 2)
7-pole connector (6+PE) according to DIN EN 175201-804	With indicator light	DK6L	-	✔	✔	✔	✔	-	-	-	IP65	I 2)
7-pole connector (6+PE) according to DIN EN 175201-804	With indicator light and interference protection circuit	DK6L1	-	✔	✔	✔	✔	-	-	-	IP65	I 2)
Connector according to ANSI/B93.55M-1981 (Brad Harrison Mini-Change)	With indicator light, 3-pole	DK23L	-	✔	✔	✔	✔	-	-	-	IP65	I 2)
	With indicator light, 5-pole	DK25L	-	✔	✔	✔	✔	-	-	-	IP65	I 2)
Maximum admissible overvoltages according to DIN EN 60664-1:2008-01 (VDE 0110-1) (overvoltage category II):											IP65	I 2)
Nominal voltage UNom		V	100	110	110	120	120	200	230	230
Rated current INom	50~^&@@&^~Hz	A	0,56	0,34	0,52	-	-	0,29	0,16	0,23
Rated current INom	60~^&@@&^~Hz	A	0,44	0,34	0,39	0,30	0,45	-	0,16	0,17
Lower rated current	50~^&@@&^~Hz	A	0,65	-	0,6	-	-	0,33	-	0,27
Lower rated current	60~^&@@&^~Hz	A	0,51	-	0,45	-	0,52	-	-	0,2
Upper rated current	50~^&@@&^~Hz	A	0,9	-	0,9	-	-	0,6	-	0,36
Upper rated current	60~^&@@&^~Hz	A	0,9	-	0,6	-	0,9	-	-	0,36
Maximum admissible switch-off overvoltage according to VDE 0580		V	500	500	500	500	500	500	500	500
Recommended interference protection circuit with 2 x mains voltage		V	200	220	220	220	240	400	460	460

1)	Only with correctly mounted valve with a mating connector suitable for the protection class.
2)	Protection class I with properly connected protective grounding conductor (PE) and valve mounting surface connected to the protective grounding conductor system.
3)	Wire bridge between pin 2- and 4-.

Notices:

general

Size			6
Weight	Valve with one solenoid	kg	1.45
Weight	Valve with two solenoids	kg	1.95
Installation position			any
Ambient temperature range	NBR seals	°C	-20 … +50
	FKM seals	°C	-15 … +50
	Version for HFC hydraulic fluid	°C	-20 … +50
	Low-temperature version 1)	°C	-40 … +50
Storage temperature range		°C	+5 … +40
MTTFD values according to EN ISO 13849 2)		Years	300

1)	For the use at low temperatures, see Project planning information
2)	For further details, see data sheet 08012

hydraulic

Size				6
Maximum operating pressure	Port P	Standard version	bar	350
	Port P	Version "SO407"	bar	315
	Port A	Standard version	bar	350
	Port A	Version "SO407"	bar	315
	Port B	Standard version	bar	350
	Port B	Version "SO407"	bar	315
	Port T	Direct voltage 1)	bar	210
	Port T	AC voltage 1)	bar	160
Maximum flow	Direct voltage	Standard version	l/min	80
	Direct voltage	Version "SO407"	l/min	60
	AC voltage		l/min	60
Flow cross-section (spool position 0)	Symbol Q			approx. 6 % of nominal cross-section
Flow cross-section (spool position 0)	Symbol W			approx. 3 % of nominal cross-section
Hydraulic fluid				see table "Hydraulic fluid"
Hydraulic fluid temperature range	NBR seals		°C	-20 … +80
	FKM seals		°C	-15 … +80
	Version for HFC hydraulic fluid		°C	-20 … +50
	Low-temperature version 2)		°C	-40 … +50
Viscosity range			mm²/s	2,8 … 500
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 3)				Class 20/18/15

1)	With symbols A and B, port T must be used as leakage oil connection if the operating pressure exceeds the admissible tank pressure.
2)	For the use at low temperatures, see Project planning information
3)	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oils		HL, HLP, HLPD, HVLP, HVLPD	NBR, FKM	DIN 51524	90220
Bio-degradable	Insoluble in water	HETG	FKM	ISO 15380	90221
	Insoluble in water	HEES	FKM	ISO 15380
	Soluble in water	HEPG	FKM	ISO 15380
Flame-resistant	Water-free	HFDU (glycol base)	FKM	ISO 12922	90222
		HFDU (ester base)	FKM
		HFDR	FKM
	Containing water	HFC (Fuchs: Hydrotherm 46M, Renosafe 500; Petrofer: Ultra Safe 620; Houghton: Safe 620; Union: Carbide HP5046)	NBR	ISO 12922	90223
Important information on hydraulic fluids: For more information and data on the use of other hydraulicfluids, please refer to the data sheets above or contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Bio-degradable and flame-resistant – containing water: If components with galvanic zinc coating (e.g. version "J3" or "J5") or parts containing zinc are used, small amounts of dissolved zinc may get into the hydraulic system and cause accelerated aging of the hydraulic fluid. Zinc soap may form as a chemical reaction product, which may clog filters, nozzles and solenoid valves - particularly in connection with local heat input. Flame-resistant - containing water: Due to increased cavitation tendency with HFC hydraulic fluids, the life cycle of the component may be reduced by up to 30% as compared to the use with mineral oil HLP. In order to reduce the cavitation effect, it is recommended - if possible specific to the installation - to back up the return flow pressure in ports T to approx. 20% of the pressure differential at the component. Dependent on the hydraulic fluid used, the maximum ambient and hydraulic fluid temperature must not exceed 50 °C. In order to reduce the heat input into the component, a maximum duty cycle of 50% in continuous operation has to be set for on/off valves (measuring period 300 s). If this is not possible due to the function, an energy-reducing control of these components is recommended, e.g. via a PWM plug-in amplifier.

electrical

Voltage type				Direct voltage	AC voltage 50/60 Hz	Direct voltage	AC voltage 50/60 Hz
Nominal voltage according to VDE 0580				See "Type codes"
Voltage tolerance (nominal voltage)			%	± 10
Nominal power according to VDE 0580	Standard version		W	30	-	30	-
	Version "SO407"		W	8	-	8	-
	Version "= UR"		W	34	-	34	-
Holding power			VA	-	50	-	50
Switch-on power			VA	-	220	-	220
Duty cycle				100% (S1 according to VDE 0580)
Switching time according to ISO 6403 1)	ON		ms	25 … 45	10 … 20	25 … 45	10 … 20
	OFF		ms	10 … 25	15 … 40	10 … 25	15 … 40
Maximum switching frequency	Standard version		1/s	4.2	2	4.2	2
	Version "SO407"		1/s	2	-	2	-
Maximum surface temperature of the coil 2)	Standard version		°C	120	180	120	180
	Version "SO407"		°C	85	-	85	-
	Version "= UR"		°C	120	-	120	-
Insulation class VDE 0580	Standard			F	H	F	H
	Version "= UR"	Version "G12", "G24"		F
		Version "G110", "W120R"		H
Protection class according to DIN EN 60529				See "Type codes"
Protection class according to VDE 0580				See "Type codes"
Electrical fuse protection				Maximum admissible switch-off overvoltage see "Type codes". Every solenoid must be protected individually, using a suitable fuse with tripping characteristics K (inductive loads).
Protective earthing conductor and screening				The valve must be installed on a surface that is included in the equipotential bonding. Connector pin assignment (CE-compliant installation) see "Electrical connection".
Conformity				CE according to Low-Voltage Directive 2014/35/EU checked according to EN 60204-1:2006-01 and DIN VDE 0580, classified as component.

1)	Measured without flow. The switching times were determined for a hydraulic fluid temperature of 40 °C and a viscosity of 46 mm2/s. Switching times change dependent on hydraulic fluid temperatures, operating time and application conditions.
2)	Due to the temperatures occurring at the surfaces of the solenoid coils, the standards ISO 13732-1 and ISO 4413 need to be adhered to!The specified surface temperature in AC solenoids is valid for fault-free operation. In the error case (e.g. blocking of the control spool), the surface temperature may increase above 180 °C. Thus, the system must be checked for possible dangers considering the ignition temperature of the hydraulic fluid used. As fuse protection, circuit breakers must be used, unless the creation of an ignitable atmosphere can be excluded in a different way. In this way, the surface temperature in an error case can be limited to a maximum of 220 °C. You have to use cables that have been approved of for a working temperature of more than 50 °C (individual connection) and/or 90 °C (central connection).

Notices:

The solenoid coils must not be painted. Any simultaneous actuation of 2 solenoids of one valve must be ruled out. Fast switch-on
For accelerated switching on the solenoid side, valves with individual connection and a nominal voltage of 12 V or 24 V can be controlled with two times the voltage for a maximum of 100 ms (pulse width modulation see data sheet 30362). In this connection, the maximum admissible switching frequency is reduced to 3 1/s. Dampened switching
With valves of version "A12", damping of the switch-on and switch-off process is possible (smoothly switching). In this way, switching shocks in the system are considerably reduced.

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Δp-qV characteristic curves

4	Symbol "H" in central position P – T
7	Symbol „R“ in spool position B – A
8	Symbol „G“ and „T“ in central position P ‒ T

Symbol	Direction of flow
Symbol	P-A	P-B	A-T	B-T
A; B	5	5	–	–
C; C46	3	3	5	3
D; D46; Y	6	6	5	5
E	5	5	3	3
F	3	5	3	3
T	8	8	4	4
H	2	1	2	2
J; Q	3	3	2	3
L	5	5	1	4
M	2	1	5	5
P	5	3	3	3
R	6	6	1	‒
V	3	2	3	3
W	3	3	2	2
U	5	5	4	1
G	7	7	4	4

Δp-qV characteristic curves

Symbol	Direction of flow
Symbol	P-A	P-B	A-T	B-T	P-T	B-A
E73	11	11	11	11	–	–
J73	13	13	9	9	–	–
H73	11	11	11	11	12	–
A73; B73	15	15	–	–	–	–
D73; Y73	14	14	14	14	–	–
G73	16	16	16	16	12	–
R73	10	15	10	–	–	15
W73	10	10	10	10	–	–

Performance limits

(measured with HLP46, ϑOil = 40 ±5 °C)

Notice:

The specified performance limits are valid for operation with two directions of flow (e.g. from P to A and simultaneous return flow from B to T).
Due to the flow forces acting within the valves, the possible performance limit may be considerably lower with only one direction of flow (e.g. from P to A while port B is blocked).
The performance limits were determined when the solenoids were at operating temperature, at 10% undervoltage and without tank preloading.

Direct voltage "G24"

Standard version

Characteristic curve	Symbol
1	A; B1)
2	V
3	A; B
4	F; P
5	J
6	G; H; T;
7	A/O; A/OF; L; U
8	C; D; Y
9	M
10	E; E1~^&@@&^~2); R3); C/O; C/OF; D/O; D/OF; Q; W

1)	With manual override
2)	P – A/B pre-opening
3)	Return flow from actuator to tank

Direct voltage "G24"

Version "A12"

Characteristic curve	Symbol
1	A73; B73
2	G73
3	D73; Y73
4	J73
5	R73
6	E73; W73; D73/OF
7	H73

Direct voltage "G24"

Version "SO407"

Characteristic curve	Symbol
1	A
2	C; D; Y
3	M
4	G
5	E
6	H
7	J
8	V
9	T
10	R 1)
11	C46/OF; D46/OF

1)	Return flow from actuator to tank

AC voltage ("W230", 50 Hz)

Standard version

Characteristic curve	Symbol
1	A; B 1)
2	V
3	A; B
4	F; P
5	G; T
6	H
7	C/O; C/OF; D/O; D/OF; E; E1-2); J; M; R3)
8	C; D; Y
9	J; L; U
10	A/O; A/OF; Q; W

1)	With manual override
2)	P – A/B pre-opening
3)	Return flow from actuator to tank

1)	Example: Symbol E with spool position "a" ordering code ..EA.. Symbol E73 with spool position "a" ordering code ..E73A..
2)	Symbol E1-: P – A/B pre-opening, Caution in conjunction with differential cylinders due to pressure intensification.
3)	Only with version "SO407" and "OF"

Notice:

Representation according to DIN ISO 1219-1.

Hydraulic interim positions are shown by dashes.

Electrical connections, assignment – individual connection

Ordering code connector		Top view	Circuit diagram	Pin	Connections, assignment
3-pole connector (2+PE) according to DIN EN 175301-803	K4			1	Solenoid coil, polarity-independe
				2
3-pole connector (2+PE) according to DIN EN 175301-803 (with potted-in plug base and sealing element)	K4K 1)				Earthing
Connector 2-pole, DT04-2PA (Deutsch type)	K40 2)			1	Solenoid coil, polarity-independe
				2
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101, with suppressor diode, pin assignment according to DESINA	K72L			1	Internal bridge
				2
				3	Solenoid coil GND
				4	Solenoid coil 24 VDC supply voltage
				5	Without function
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101, with suppressor diode	K73L			1	Without function
				2
				3	Solenoid coil GND
				4	Solenoid coil 24 VDC supply voltage
				5	Without function
Connector 2-pole (Junior-Timer type)	C4 2)			1	Solenoid coil, polarity-independe
				2

1)	Coil with potted-in connector base and sealing element to valve housing (IP67)
2)	Plug-in system suitable for mobile applications

Electrical connections, assignment – central connection

Ordering code connector		Top view	Circuit diagram	Pin	Connections, assignment
Cable gland, terminal area 6 … 12 mm, with indicator light, interference protection circuit optional	DL, DL1, DJL1)			1	Valve solenoid "a"
				2
Cable gland, threaded connection 1/2"-14 NPT, with indicator light, interference protection circuit optional	DAL2),DAL12)			3	Valve solenoid "b"
				4
					Earthing
7-pole connector (6+PE) according to DIN EN 175201-804, with indicator light	DK6L, DK6L1			1	Valve solenoid "a"
				2
				3	Valve solenoid "b"
				4
				5	Not assigned
				6
					Earthing
Connector 3-pole according to ANSI/B93.55M-1981 (Brad Harrison Mini-Change), with indicator light	DK23L			2	Valve solenoid "a"
				3	Valve solenoid "b"
					Earthing
Connector 5-pole according to ANSI/B93.55M-1981 (Brad Harrison Mini-Change), with indicator light	DK25L			1	Valve solenoid "a"
				5
				2	Valve solenoid "b"
				4
				3	Earthing
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101, with indicator light	DK24L, DK24L1			1	Valve solenoid "a"
				3
				4	Valve solenoid "b"
				3
Connector, 4-pole, M12x1 according to DIN EN 61076-2-101, with indicator light and interference protection circuit	DK35L			2	Valve solenoid "a"
				3
				4	Valve solenoid "b"
				3

1)	Wire bridge with version "DJL"
2)	Cable gland according to Conduit system with NPT thread; tightening torque MA = 5±0,5 Nm

Notices:

When establishing the electrical connection, the protective grounding conductor (PE) must be connected correctly. Electric lines must be routed in a strain-relieved manner. Cable glands are only suitable for permanently installed cables. Connectors are to be locked during operation. Not intended to be plugged in or disconnected during normal operation under load. Crimping after stripping 9+1 mm by means of tool, e.g. "PZ 6/5", company Weidmüller. Use of finely stranded conductors with cross-section 0,75 mm2 (AWG 20), 1 mm2 (AWG 18), 1,5 mm2 (AWG16) with suitable wire end ferrules without flange with a length of 8 mm based on DIN 46228-1. Protective grounding conductor cross-section equal to or greater than the line cross-section of the voltage supply. The valve mounting surface must be connected to the protective grounding conductor system.

DC voltage – individual connection

Dimensions in mm


Required surface quality of the valve contact surface

1	Solenoid “a”
2	Solenoid “b”
10	Mating connector without circuitry for connector "K4", separate order, see "Accessories"
11	Mating connector (AMP Junior Timer) with connector "C4”, separate order, see "Accessories"
12	Mating connector DT 4-2PA (Deutsch plug) with connector "K40", separate order, see "Accessories"
13	Mating connector angled with M12x1 plug-in connection and status LED for connector "K72L", separate order, see "Accessories"
14	Mating connector with circuitry for “K4” connector, separate order, see "Accessories"
18	Name plate
19	Identical seal rings for ports A, B, P, T Notice: The ports are clearly determined according to their tasks and must not be arbitrarily interchanged or closed.
20	Plug screw for valves with one solenoid on B side
21	Plug screw for valves with one solenoid on A side
22	Space required to remove the mating connector/angled socket
23	Space required to remove the coil; dimensions () version "= UR"
24	Mounting nut, tightening torque MA = 4+1 Nm
25	Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
26	Alternative clamping length (): 22 mm

DC voltage - central connection

Dimensions in mm


Required surface quality of the valve contact surface

1	Solenoid “a”
2	Solenoid “b”
15	Cable gland "DL"
16	Central plug-in connection "DK6L"
17	Mating connectors for valves with central connection and connector "DK6L", separate order, see "Accessories"
18	Name plate
19	Identical seal rings for ports A, B, P, T Notice: The ports are clearly determined according to their tasks and must not be arbitrarily interchanged or closed.
20	Plug screw for valves with one solenoid on B side
21	Plug screw for valves with one solenoid on A side
22	Space required to remove the mating connector/angled socket
23	Space required to remove the coil; dimensions () version "= UR"
24	Mounting nut, tightening torque MA = 4+1 Nm
25	Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
26	Alternative clamping length (): 22 mm
27	Cover Notice: The valve may only be operated with properly mounted cover.

DC voltage – Manual override

Dimensions in mm


Required surface quality of the valve contact surface

3	Without manual override
4	Concealed manual override "N9" (standard); dimensions () version "= UR"
5	Manual override "N"
6	Lockable manual override "mushroom button" (small) "N4"
7	Lockable manual override "nut" "N7"
8	Lockable manual override "mushroom button" (large) "N5"
9	Manual override "mushroom button" (large), not lockable "N6"

Alternating voltage – individual connection

Dimensions in mm


Required surface quality of the valve contact surface

1	Solenoid “a”
2	Solenoid “b”
3	Without manual override
5	Manual override "N"
6	Lockable manual override "mushroom button" (small) "N4"
10	Mating connector without circuitry for connector "K4", separate order, see "Accessories"
14	Mating connector with circuitry for “K4” connector, separate order, see "Accessories"
18	Name plate
19	Identical seal rings for ports A, B, P, T Notice: The ports are clearly determined according to their tasks and must not be arbitrarily interchanged or closed.
20	Plug screw for valves with one solenoid on B side
21	Plug screw for valves with one solenoid on A side
22	Space required to remove the mating connector/angled socket
23	Space required to remove the coil; dimensions () version "= UR"
24	Mounting nut, tightening torque MA = 4+1 Nm
25	Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
26	Alternative clamping length (): 22 mm

Alternating voltage – central connection

Dimensions in mm


Required surface quality of the valve contact surface

1	Solenoid “a”
2	Solenoid “b”
3	Without manual override
5	Manual override "N"
6	Lockable manual override "mushroom button" (small) "N4"
15	Cable gland "DL"
16	Central plug-in connection "DK6L"
17	Mating connectors for valves with central connection and connector "DK6L", separate order, see "Accessories"
18	Name plate
19	Identical seal rings for ports A, B, P, T Notice: The ports are clearly determined according to their tasks and must not be arbitrarily interchanged or closed.
20	Plug screw for valves with one solenoid on B side
21	Plug screw for valves with one solenoid on A side
22	Space required to remove the mating connector/angled socket
23	Space required to remove the coil; dimensions () version "= UR"
24	Mounting nut, tightening torque MA = 4+1 Nm
25	Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
26	Alternative clamping length (): 22 mm
27	Cover Notice: The valve may only be operated with properly mounted cover.

Valve mounting screws (separate order)

Clamping length	Quantity	Hexagon socket head cap screws	Material number
42 mm	4	ISO 4762 - M5 x~^&@@&^~ 50 - 10.9-flZn-240h-L (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 7 Nm ±10 %	R913043758
	or
	4	ISO 4762 - M5 x 50~^&@@&^~ - 10.9 (Friction coefficient μtotal = 0,12 … 0,17) Tightening torque MA = 8,1 Nm ±10 %	Not included in the Rexroth delivery range
	or
	4	UNC 10-24 UNC x 2" ASTM-A574 (Friction coefficient μtotal = 0,19 … 0,24) Tightening torque MA = 11 Nm ±15 %	R978800693
	4	UNC 10-24 UNC x 2" ASTM-A574 (Friction coefficient μtotal = 0,12 … 0,17) Tightening torque MA = 8 Nm ±10 %	R978800693
22 mm	4	ISO 4762 - M5 x 30 - 10.9-flZn-240h-L (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 7 Nm ±10 %	R913048086
	or
	4	ISO 4762 - M5 x 30 - 10.9 (Friction coefficient μtotal = 0,12 … 0,17) Tightening torque MA = 8,1 Nm ±10 %	Not included in the Rexroth delivery range
	or
	4	UNC 10-24 UNC x 2" ASTM-A574 (Friction coefficient μtotal = 0,19 … 0,24) Tightening torque MA = 11 Nm ±15 %	R978802879
		UNC 10-24 UNC x 2" ASTM-A574 (Friction coefficient μtotal = 0,12 … 0,17) Tightening torque MA = 8 Nm ±10 %	R978802879

Temperature range and maximum operating pressure in case of use at low temperatures

Connection	Pressure	Temperature range in °C
P, A, B, T	static 100 bar	-40 … -35
P, A, B	dynamic from 100 bar to 350 barin linear form as a function of the temperature	-35 … -30
T	dynamic from 100 bar to 210 bar in linear form as a function of the temperature	-35 … -30
P, A, B, T	Maximum operating pressure	-30 … +50

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z45

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z45

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, with indicator light

Mating connectors for directional valves with connector "C4" and "C4Z" (AMP Junior-Timer), litz wire outer diameter 2.2 mm to 3.0 mm

2P JUNIOR D2 2

Mating connectors for directional valves with connector "C4" and "C4Z" (AMP Junior-Timer), litz wire outer diameter 2.2 mm to 3.0 mm

2P JUNIOR D2 2

For directional valves with connector "C4" and "C4Z" (AMP Junior-Timer)

Data sheet

Spare parts & repair

Mating connectors for directional valves with connector "C4" and "C4Z" (AMP Junior-Timer), litz wire outer diameter 1.2 mm to 2.1 mm

2P D1.2 JUNIOR

Mating connectors for directional valves with connector "C4" and "C4Z" (AMP Junior-Timer), litz wire outer diameter 1.2 mm to 2.1 mm

2P D1.2 JUNIOR

For directional valves with connector "C4" and "C4Z" (AMP Junior-Timer)

Data sheet

Spare parts & repair

Mating connectors for directional valves with connector "K40" (Deutsch plug)

2P DT06 K40

Mating connectors for directional valves with connector "K40" (Deutsch plug)

2P DT06 K40

For directional valves with "K40" connector (Deutsch plug)

Data sheet

Spare parts & repair

Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6” and “DK6L”, 6-pole + PE

7P Z6

Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6” and “DK6L”, 6-pole + PE

7P Z6

Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6”

Data sheet

Spare parts & repair

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Accessories for R900908877

DIRECTIONAL SPOOL VALVE 4WE6Y6X/EG24N9K4/B12

Manufacturer: Bosch Rexroth

Material #: R900908877

Model : 4WE6Y6X/EG24N9K4/B12

This product is eligible for factory repair.

Available corrosion resistance

Electrical connections and available voltages

DC voltage – individual connection

DC voltage - central connection

Alternating voltage – individual connection

Alternating voltage – central connection

general

hydraulic

electrical

(measured with HLP46, ϑOil = 40 ±5 °C)

Δp-qV characteristic curves

Δp-qV characteristic curves

Performance limits

Direct voltage "G24"

Direct voltage "G24"

Direct voltage "G24"

AC voltage ("W230", 50 Hz)

Electrical connections, assignment – individual connection

Electrical connections, assignment – central connection

DC voltage – individual connection

DC voltage - central connection

DC voltage – Manual override

Alternating voltage – individual connection

Alternating voltage – central connection

Valve mounting screws (separate order)

Temperature range and maximum operating pressure in case of use at low temperatures

Related Products

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