Z4WE6E68-3X/CG125N9K4

Manufacturer: Bosch Rexroth

Material #: R978002811

Model : Z4WE6E68-3X/CG125N9K4

***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 Z4WE6E68-3X/CG125N9K4 (R978002811) is a high-performance, direct-controlled directional slide valve with solenoid actuation designed for integration in hydraulic systems. This sandwich plate valve can be utilized as a stop straight-through valve or a stop straight-through short-circuit valve, providing versatility in its application for controlling the direction of fluid flow within hydraulic circuits. It features porting patterns that comply with DIN form A standards without a locating hole and ISO with a locating hole, ensuring compatibility with various industrial norms and facilitating ease of installation. The Z4WE6E68-3X/CG125N9K4 comes equipped with wet-pin AC or DC solenoids, which are known for their durability and ability to operate in demanding environments. Additionally, the option for manual override presents users with the flexibility to manually control the valve in situations where electrical control is not feasible or during maintenance procedures. This model is recognized for its robust construction and reliable performance under high-pressure conditions, supporting a maximum operating pressure of up to 350 bar and allowing a maximum flow rate of 60 liters per minute. The component series X designation indicates that it belongs to a series of valves designed to meet rigorous operational standards. In summary, the Bosch Rexroth Z4WE6E68-3X/CG125N9K4 offers precise control over hydraulic fluid direction in complex systems, enhanced by its compliance with international porting standards, resilience under high-pressure scenarios, and flexible control options through both solenoid actuation and manual override capabilities.

$745.00 USD

More are expected on May 21, 2025

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Status: This product is temporarily out of stock.

Qty: Delivered as early as May 21, 2025 when ordered in

This product is eligible for factory repair.

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Direct-controlled directional slide valve with solenoid actuation Sandwich plate valve As stop straight-through valve or stop straight-through short circuit valve Porting pattern according to DIN 24340 form A (without locating hole), (standard) Porting pattern according to ISO 4401-03-02-0-05 (with locating hole) Wet-pin AC or DC solenoids Manual override, optional

Type Z4WE 6…

➀	component side
➁	plate side

01	02	03		05		07	08	09	10	11	12	13	14
Z4WE	6		‒	3X	/	E			K4				*

01	Shut-off valve, sandwich plate	ZW4E
02	Size	6
Symbols
03	e.g. D24, E51, E53, ...; with DC or AC solenoids e.g. X250, X252, ...; only with DC solenoids (AC voltage on request)
05	Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)	3X
07	High-power solenoid, wet-pin, with detachable coil	E
08	Direct voltage 24 V	G24
	Alternating voltage 230 V, 50/60 Hz	W230
	Direct voltage 205 V	G2051)
09	With concealed manual override (standard)	N9
	With manual override	N
	Without manual override	no code
Electrical connection
10	Without mating connector, with connector DIN EN 175301-803	K42)
Spool position monitoring
11	Without position switch	no code
	Monitored spool position "a"	QMAG24
	Monitored spool position "b"	QMBG24
	Monitored rest position	QM0G24

Seal material
12	NBR seals	no code
	FKM seals (other seals upon request)	V
	Observe compatibility of seals with hydraulic fluid used.	V
13		no code
	With locating hole	/603)
	With locating hole and locking pin ISO 8752-3x8-St	/62
14	Further details in the plain text	*

Notice!

Inductive position switch type QM not available for symbol "E53“

AC voltage mains (admissible voltage tolerance ± 10%)	Nominal voltage of the DC solenoid in case of operation with alternating voltage	Ordering code
110 V - 50/60 Hz	96 V	G96
230 V - 50/60 Hz	205 V	G205

Preferred types and standard units are contained in the EPS (standard price list).

general

Size			6
Weight	Valve with one solenoid	kg	1.2
Weight	Valve with two solenoids	kg	1.6
Installation position			any
Ambient temperature ranges (NBR seals)		°C	-30 … +50
Ambient temperature ranges (FKM seals)		°C	-20 … +70
MTTFD values according to EN ISO 13849 1)		Years	150
Admissible shock and vibration loads			see data sheet 08012

1)	For further details, see data sheet 08012

hydraulic

Size				6
Maximum operating pressure	Port P		bar	315
	Anschluss A		bar	315
	Port B		bar	315
	Port T	with DC solenoid	bar	210
	Port T	with AC solenoid	bar	160
Maximum flow			l/min	50
Hydraulic fluid				see table
Hydraulic fluid temperature range (NBR seals)			°C	-30 … +80
Hydraulic fluid temperature range (FKM seals)			°C	-20 … +80
Viscosity range			mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid 1)				Class 20/18/15 according to ISO 4406 (c)

1)	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.

electrical

Voltage type			Direct voltage	AC voltage 50/60 Hz
Available voltages 1)		V	12 / 24 / 96 / 205	110 / 230
Voltage tolerance	Nominal voltage	%	± 10	± 10
Power consumption		W	30	-
Holding power		VA	-	50
Switch-on power		VA	-	220
Duty cycle		%	100	100
Switching time according to ISO 6403 2)	On	ms	20 … 45	10 … 20
Switching time according to ISO 6403 2)	Off	ms	10 … 25	15 … 40
Maximum switching frequency		1/h	15000	7200
Maximum coil temperature 3)		°C	150	180
Protection class according to DIN EN 60529			IP65 (with mating connector mounted and locked)

1)	Special voltages available upon request
2)	The switching times were determined at a hydraulic fluid temperature of 40 °C and a viscosity of 46 mm2/s. Deviating hydraulic fluid temperatures can result in different switching times. Switching times change dependent on operating time and application conditions.
3)	Due to the surface temperatures of the solenoid coils, the standards ISO 13732-1 and EN 982 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 [356 °F]. Thus, the system must be checked for possible dangers considering the flash point (see table Hydraulic fluids).As fuse protection, circuit breakers (see table Circuit breakers) must be used, unless the creation of an ignitable atmosphere can be excluded in a different way. Thus, the surface temperature can – in the error case – be limited to maximally 220 °C [428 °F].Within a time interval of 0.6 s, the tripping current must be 8 to 10 times the nominal power supply (tripping characteristics “K”).The required non-tripping current of the fuse must not fall below the value I1 (see table Circuit breakers with tripping characteristics “K”). The maximum tripping current of the fuse must not exceed the value I2 (see table Circuit breakers with tripping characteristics “K”).The temperature dependence of the tripping behavior of the circuit breakers has to be observed according to the manufacturer's specifications.

Notices!

Actuation of the manual override is only possible up to a tank pressure of approx. 50 bar. Avoid damage to the bore of the manual override! (Special tool for the operation, separate order, material no. R900024943). When the manual override is blocked, the actuation of the solenoid must be prevented! The simultaneous actuation of the solenoids must be prevented!

Notice!

AC solenoids can be used for 2 or 3 mains; e.g. solenoid type W110 for: 110 V, 50 Hz; 110 V, 60 Hz; 120 V, 60 Hz

Circuit breakers with tripping characteristics K according to EN 60898-1 (VDE 0641-11), EN 60947-2 (VDE 0660-101), IEC 60898 and IEC 60947-2

Valve nominal voltage	Nominal power supply		Recommended fuse rated current
Valve nominal voltage	50 Hz	60 Hz	Recommended fuse rated current
24	2	1,5	3
42	1,26	0,98	2
48	1	0,95	1,6
100	0,56	0,5	1
110	0,52	0,45	0,75
115	0,45	0,37	0,75
127	0,42	0,32	0,75
200	0,29	0,26	0,5
220	0,27	0,23	0,5
230	0,23	0,17	0,5
240	0,23	0,19	0,5

When establishing the electrical connection, the protective earthing conductor (PE ⊥) must be connected correctly.

Inductive position switch type QM: electrical connection

The electric connection is realized via a 4-pole mating connector (separate order) with connection thread M12 x 1.

electrical

Connection voltage (DC voltage)			V	24
Voltage tolerance (connection voltage)				+30 %/-15 %
Admissible residual ripple			%	≤ 10
Max. load capacity			mA	400
Switching outputs				PNP transistor outputs, load between switching outputs and GND
Pinout	1		V	24
	2, 4	Switching output	mA	400
	3	Earthing (GND)	V	0

For applications outside these parameters, please consult us!

Ordering code	Mains
W110	110 V, 50 Hz
	110 V, 60 Hz
	120 V, 60 Hz
W 230	230 V, 50 Hz
W 230	230 V, 60 Hz

Hydraulic fluid		Classification	Suitable sealing materials	Standards
Mineral oils and related hydrocarbons		HL, HLP, HLPD, HVLP, HVLPD	NBR, FKM	DIN 51524
Environmentally compatible	Insoluble in water	HETG	NBR, FKM	ISO 15380
	Insoluble in water	HEES	FKM	ISO 15380
	Soluble in water	HEPG	FKM	ISO 15380
	Containing water	HFC	NBR	ISO 12922

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

Δp-qV characteristic curves

Spool symbols D27, E46, E54, E56, E57, E62, E115, E127, E129, E130, E131, E132, ,E135, E136, E138, E139, E140, E141, E144, E145, E145A, E146, E147, E166, E181 and E183 on request.

Symbol	A➁‒A➀	A➀‒A➁	B➁‒B➀	B➀‒B➁	A➁‒B➁	B➁‒A➁	T➁‒T➀	P➁‒P➀
D24	4	1	2	4	3	2	7	7
E51	3	1	1	3	‒	‒	7	7
E53	2	2	2	2	5	2	7	7
E63	2	5	5	3	‒	‒	7	7
E68	4	4	6	5	4	5	7	7
E137	1	4	3	2	5	6	7	7

Δp-qV characteristic curves

Spool symbols X161, X163, X181, X183, X187, X188, X193 and X157 on request.

Symbol	Spool position	A➀‒A➁ A➁‒A➀	B➀‒B➁	B➁‒B➀	T➁‒T➀	P➁‒P➀	P➀‒T➁	B➁‒T➁	P➁‒P➀	A➁‒T➁	P➁‒A➁ B➁‒T➁
X250		16	17	17	18	13	10	‒	‒	‒	‒
X252		16	17	17	18	9	11	‒	‒	‒	‒
X253		13	14	14	19	18	‒	‒	‒	8	‒
X254		16	12	13	18	18	‒	12	‒	‒	‒
X255	0	‒	‒	‒	15	‒	‒	8	‒	8	‒
	a	12	‒	‒	‒	‒	‒	13	‒	‒	‒
	b	‒	12	12	‒	‒	‒	‒	‒	13	‒
X256		12	9	9	18	‒	‒	‒	18	‒	20

Performance limits(measured with HLP46, ϑOil = 40 ±5 °C and 24 V DC voltage)

Spool symbols D27, E46, E54, E56, E57, E62, E115, E127, E129, E130, E131, E132, E133, E134, E135, E136, E138, E139, E140, E141, E144, E145, E145A, E146, E147, E166, E181, E183, X161, X163, X181, X183, X187, X188, X193 and X157 on request.

Performance limits(measured with HLP46, ϑOil = 40 ±5 °C and 24 V DC voltage)

Performance limits(measured with HLP46, ϑOil = 40 ±5 °C [104 ±9 °F] and 230 V AC voltage)

Spool symbols D27, E46, E54, E56, E57, E62, E115, E127, E129, E130, E131, E132, ,E135, E136, E138, E139, E140, E141, E144, E145, E145A, E146, E147, E166, E181 and E183 on request.

Symbol	W230–50Hz	W230–60Hz
E63	13	16
E68	14	18
E53	15	18
E137	17	17
E51	17	17
D24	17	17

DC or AC voltage

D24

E57

D27

E62

E46

E63

E51

E68

E53

E115

E54

E127

E56

E129

E130

E138

E131

E139

E132

E140

E1351)

1)	Throttle installation available on request

E141

E136

E144

E137

E145

E145A

E166

E146

E181

E147

E183

➀	component side
➁	plate side

Direct voltage

X161

X250

X163

X252

X181

X253

X183

X254

X187

X255

X188

X256

X193

X257

➀	component side
➁	plate side

Inductive position switch type QM Switching logics

Version QMA

(Position switch on side B, monitored spool position "a")

Version QMA

(Position switch on side A, monitored spool position "a")

Version QMB

(Position switch on side B, monitored spool position "b")

Version QMB

(Position switch on side A, monitored spool position "b")

Version QM0

(Position switch on side B, monitored rest position)

Version QM0

(Position switch on side A, monitored rest position)

with DC solenoid

Spool symbols D24, E51, E53, E63, E68, E137, …

Dimensions in mm

Spool symbols X250, X252, X253, X254, X255, X256, …

Dimensions in mm

Symbol	Solenoid side	L1	L2	L3	L4	L5	L6	L7
Symbol		mm	mm	mm	mm	mm	mm	mm
X250	a	24.9	54.9	-	63.3	93.3	-	-
X252	b	24.9	54.9	33.5	-	-	123.1	-
X253	b	18.3	54.3	26.9	-	-	129.7	-
X254	a	18.3	54.3	-	69.9	86.7	-	-
X255	a + b	25.9	53.9	-	-	94.3	131.1	225.4
X256	b	12	54.8	20.6	-	-	136	-

Spool symbols X161, X163, X181, X183, X187, X188, X193 and X157 on request.

with AC solenoid

Dimensions in mm

➀	component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep)
➁	plate side – porting pattern according to ISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St; version "/60" and "/62")
3	Dimension for valve without manual override
4	Dimension for solenoid with concealed manual override "N9" (standard)
5	Dimension for valve with manual override "N"
6	Mating connector without circuitry (separate order, see data sheet 08006)
7	Mating connector with circuitry (separate order, see page data separate order, see data sheet 08006)
8	Space required to remove the mating connector
9	Identical seal rings for ports A, B, P, T (plate side)
10	Name plate
11	Plug screw for valve with one solenoid
12	Locking pin ISO 8752-3x8-St (only version "/62")

Subplates according to data sheet 45052

(separate order)

(without locating hole)

G 341/01 (G1/4)

G 342/01 (G3/8)

G 502/01 (G1/2)

(with locating hole)

G 341/60 (G1/4)

G 342/60 (G3/8)

G 502/60 (G1/2)

Valve mounting screws (separate order)

– 4 hexagon socket head cap screws ISO 4762 - M5 - 10.9-flZn-240h-L

with friction coefficient µtotal = 0.09 to 0.14,

tightening torque MA = 7 Nm ±10 %

– 4 hexagon socket head cap screws ISO 4762 - M5 - 10.9

with friction coefficient µtotal = 0.12 to 0.17,

tightening torque MA = 8.1 Nm ±10 %

Notice!

Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve.

Spool position monitoring

Inductive position switch type QM

Dimensions in mm

1)	For dimensions, see valve dimensions

Dimensions in mm

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

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”, with indicator light

3P Z5L

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

3P Z5L

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