ABZMS-35-1X/120F050S-K14

Manufacturer: Bosch Rexroth

Material #: R901178728

Model : ABZMS-35-1X/120F050S-K14

***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 ABZMS-35-1X/120F050S-K14 (R901178728) is a precision-engineered float switch designed for monitoring and controlling fluid levels in hydraulic power units, specifically small power units type ABSKG. This model boasts a dual-function capability, providing both level and temperature control within hydraulic systems. Equipped with sliding tubes that house two reed contacts, one normally closed and one normally open, the ABZMS-35-1X/120F050S-K14 activates these contacts through permanent magnets in the float as fluid levels change. The level switch function operates on a simple principle: as the oil level drops, the float descends to predetermined switching points, triggering the contacts magnetically. These positions are held until the oil level rises again, causing the float to ascend past the switching points and revert the contacts to their original state. The user can select between normally closed or normally open contact configurations for switching point L based on application requirements. Moreover, this model includes a temperature monitoring feature with fixedly set temperature contacts intended for maximum hydraulic fluid temperature surveillance. A bimetal plate responds to temperature changes and actuates a shutdown function when it reaches a predefined response temperature. It's important to note that while this component is critical for safety and protection against overheating, it is not designed for precise temperature control but rather serves as an emergency shutdown mechanism. Overall, Bosch Rexroth's ABZMS-35-1X/120F050S-K14 provides reliable performance in maintaining appropriate fluid levels and protecting hydraulic systems from excessive temperatures through its integrated switch functions. Its robust design ensures durability and consistent operation in various industrial applications where hydraulic fluid management is essential.

$306.07 USD

More are expected on March 20, 2025

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Status: This product is temporarily out of stock.

Qty: Delivered as early as March 20, 2025 when ordered in

Float switches are switching devices operated by a float moved by fluid. They are used to control the tank fluid levels in small power units type ABSKG ... NG10; 20; 40 and 60.

The sliding tubes contain two fixedly set reed contacts (normally closed contact and normally open contact) that are switched by the permanent magnets installed in the float.

Fixedly set temperature contacts (option) are fitted to monitor the max. hydraulic fluid temperature.

Function of level switch

When the float reaches the switching points while the oil level is falling, the contacts are operated magnetically. The switching positions of the contacts are maintained until the float passes the switching points again due to a rising oil level.

Switching point L1 is a normally closed contact, the contact function of switching point L2 is optionally a normally closed or normally open contact.

Level switch function

Switching point L1 is a normally closed contact, the contact function of switching point L2 is optionally a normally closed or normally open contact.

Temperature contact function

A bimetal plate, which is influenced by temperature, switches when a firmly set response temperature is reached. The temperature contact is not suitable for temperature controlling, but merely for a shutdown function.

Ordering code

01	02		03		04		05	06	07	08		09		10
ABZM	S	‒	35	‒	1X	/		F			‒		‒	V

Power unit accessories
01	Measuring devices	ABZM
02	Float switches	S
03	Version	35
04	Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)	1X
Minimum contact
05	Switching point L1 in mm	…
06	Normally closed contact	F
Maximum contact
07	Switching point L2 in mm	…
08	Normally closed contact	F
08	Normally open contact	S
Temperature contact
09	Without switching contact	no code
	Switching contact normally closed contact at 63 °C	T63F1)
	Switching contact normally closed contact at 70 °C	T70F
	Switching contact normally closed contact at 80 °C	T80F1)
Electrical connection 2)
10	Connector, 4-pole M12 x 1	K24
	Connector 4-pole (3 + PE) DIN EN 175301-803 (float switch without temperature contact)	K14
	Connector 7-pole (6 + PE) DIN EN 175201-804 (float switch without temperature contact)	K6

1)	Only upon request
2)	The mating connectors are not included in the scope of delivery and must be ordered separately, if required (see R.08006)

	Order example: Float switch with connection thread M20 x 1.5, with 2 fixedly set switching contacts, switching point L1 = 90 mm normally closed contact, switching point L2 = 30 mm normally open contact, connector K24 for mating connector Z24 (M12 x 1):
	ABZMS-35-1X/090F030S-K24

Resistance

Hydraulic fluids
Mineral oils	Mineral oil	HLP	according to DIN 51524	Resistant
Flame-resistant hydraulic fluids	Emulsions	HFA-E	according to DIN 24320	Not resistant
	Water solutions	HFC	according to VDMA 24317
	Phosphoric acid esters	HFD-R
	Organic esters	HFD-U
Fast bio-degradable hydraulic fluids	Triglycerides (rape seed oil)	HETG	according to VDMA 24568
	Synthetic esters	HEES
	Polyglycols	HEPG

electrical

Plug-in connection	4-pole M12 x 1 (material: metal) DIN EN 175301-803/DIN EN 175201-804

Reed contacts of the float switches
with connection K24 for mating connector M12 x 1; 4-pole

Switching voltage range	V DC	10 … 50
Maximum switching current	A	0.5
Maximum switching power	W	10

Temperature contacts of the float switches
with connection K24 for mating connector M12 x 1; 4-pole

Switching voltage range	V DC	10 … 50
Maximum switching current	A	2
Maximum switching cycles		10000
Response tolerance	K	± 4
Hysteresis range	K	2 … 10
Maximum temperature change velocity	K/min	1

Reed contacts of the float switches
with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804

Switching voltage range	V AC	10 … 230
Maximum switching current	A	0.5
Maximum switching power		10 W; 30 VA

Temperature contacts of the float switches
with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804

Switching voltage range	V AC	10 … 230
Maximum switching current	A	2
Maximum switching cycles		10000
Response tolerance	K	± 5
Hysteresis range	K	2 … 10
Maximum temperature change velocity	K/min	1

For inductive and capacitive loads, protection circuits are to be provided (diode, RC element, varistor).

Assignment to reservoirs

Float switches with min./max. switching points

Tank size DN10 and 20 Dimensions in mm	Tank size DN40 and 60 Dimensions in mm

1	Maximum oil level

Float switches ABZMS-35-1X/...	Tank size DN	Maximum oil volume	Capacity fluctuation	Residual volume	Switching point	Switching point
Float switches ABZMS-35-1X/...	Tank size DN		P	R	L1	L2
			l	l	mm	mm
090F030S-K24	10	9.6 l; -; -	3.8	5.8	90	30
120F050S-K24	20	18 l; -; -	6.8	11.2	120	50
165F085S-K24	40	33 l; -; -	12.2	20.8	165	85
165F085S-K24	60	54 l; -; -	17	37	165	85

Float switches with min. early warning switching points

Tank size DN10 and 20 Dimensions in mm	Tank size DN40 and 60 Dimensions in mm

1	Maximum oil level

Float switches ABZMS-35-1X/...	Tank size DN	Maximum oil volume	Capacity fluctuation	Residual volume	Switching point	Switching point
Float switches ABZMS-35-1X/...	Tank size DN		P	R	L1	L2
			l	l	mm	mm
090F060S-K24	10	9.6 l; -; -	2	7.6	90	60
120F090S-K24	20	18 l; -; -	4	14	120	90
165F135S-K24	40	33 l; -; -	8	25	165	135
165F135S-K24	60	54 l; -; -	11	43	165	135

For applications outside these parameters, please consult us!

With two switching contacts

With two switching contacts and one temperature contact

Dimensions: Float switches with two switching contacts

Plug-in connection M12 x 1, max. 50 VDC
Dimensions in mm

Plug-in connection DIN EN 175301-803, max. 230 VAC
Dimensions in mm

1	Mating connector for plug-in connections K24 (M12 x 1), see table "Mating connector"
2	Mating connector for plug-in connections K14, see table "Mating connector"
3	Profile seal M20 x 1.5 RNI 18104
4	Switching point
5	Connector K24; 4-pole M12 x 1
6	Connector K14; 4-pole (3 + PE) DIN EN 175301-803
7	Name plate

Pinout

Switching function with plug-in connection M12 x 1

Switching function with plug-in connection DIN EN 175301-803

L1 =	Normally closed contact at min.
L2 =	Normally closed or normally open contact as early warning

Dimensions: Float switches with two switching contacts and temperature contact

Plug-in connection M12 x 1, max. 50 VDC
Dimensions in mm

Plug-in connection DIN EN 175201-804, max. 230 VAC
Dimensions in mm

1	2 x mating connector for plug-in connections K24 (M12 x 1), see table "Mating connector"
2	Mating connector for plug-in connections K6, see table "Mating connector"
3	Profile seal M20 x 1.5 RNI 18104
4	Switching point
5	2 x connector K24; 4-pole M12 x 1
6	Connector K6; 7-pole (6 + PE) DIN EN 175201-804
7	Name plate
8	Temperature contact in sliding tube
9	Temperature contact

Pinout

Switching function with plug-in connection M12 x 1

Switching function with plug-in connection DIN EN 175201-804

L1 =	Normally closed contact at min.
L2 =	Normally closed or normally open contact as early warning
ϑ =	Normally closed contact at max. temperature

Installation information

Vertical installation according to technical data (see “Technical data”) Avoid flows Do not expose the switch to heavy impacts and bends Avoid external magnetic fields. Thus, the function of the reed contacts may be impaired.

Electrical connections:

Electrical connections may only be established by specialists Tighten the round connectors M12 x 1 and/or mating connectors after connection Only plug in the round connectors M12 x 1 and/or mating connectors in the de-energized condition Do not overload the contacts (see “Technical data”) In case of inductive load provide a protection circuit!

Normative reference

DIN EN 50020

Electric operating equipment for potentially explosive atmospheres - Intrinsic safety “i”; German version EN 50020:2002

DIN EN 60079-0

Electric operating equipment for potentially explosive gas atmospheres - Part 0: General requirements (IEC 60079-0:2004); German version EN 60079-0:2004

DIN EN 60079-14

Electric operating equipment for potentially explosive gas atmospheres - Part 14: Electric systems for endangered areas (except for mining) (IEC 60079-14:2002); German version EN 60079-14:2003

DIN EN 175201-804

Detail specification - Circular connectors - Round contacts, size diameter 1.6 mm, threaded coupling; German version EN 175201-804:1999

DIN EN 175301-803

Detail specification: Rectangular connectors - Flat contacts, 0,8 mm thickness, locking screw not detachable; German version EN 175301-803:1999

Mating connectors

For detailed information see data sheet 08006
Mating connector for connector K14 according to DIN EN 175301-803		Mating connector for connector K6 according to DIN EN 175201-804

Denomination	Part number	Denomination	Part number
LEITUNGSDOSE 4P Z14 M SW SPEZ	R901017012	LEITUNGSDOSE 7P Z6 N6RFFK	R900002803

Mating connector for connector K24		Mating connector for connector K24 with potted-in PVC cable, 3 m long

Denomination	Part number	Denomination	Part number
LEITUNGSDOSE 4P Z24 SPEZ	R900031155	LEITUNGSDOSE 4P Z24M12X1+3MSPEZ	R900064381

Mating connectors for mechanical pressure switches with connector “K14”, without circuitry, standard

4P Z14

Mating connectors for mechanical pressure switches with connector “K14”, without circuitry, standard

4P Z14

For mechanical pressure switches with connector “K14”, according to EN 175301-803 and ISO 4400, 3-pole + PE, “large cubic connector”

Data sheet

Spare parts & repair

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2

Data sheet

Spare parts & repair

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line

4P Z24 +

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line

4P Z24 +

For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2

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

Use in potentially explosive atmospheres according to Directive 94/9/EC (ATEX)

According to DIN EN 50020 float switches are simple electrical apparatus, which are not provided with voltage sources.

The electrical components consist of reed contacts, bimetal thermostats, plug-in connections and terminals.

The equipment complies with construction regulations according to DIN EN 60079-0 and DIN EN 50020.

According to DIN EN 60079-14 these simple, electrical apparatus may be used in intrinsically safe electric circuits [EEx ib] in systems for equipment class II, category 2G (Zone 1) and category 3G (Zone 2) without marking and certification.

The apparatus are assigned to category ib and temperature class T6.

Intrinsically safe, electrical equipment in potentially explosive atmosphere(zone 1 and 2)		Associated electrical equipment in safe zone

1	Cable
2	Isolating relay

ABZMS-35-1X/120F050S-K14

Manufacturer: Bosch Rexroth

Material #: R901178728

Model : ABZMS-35-1X/120F050S-K14

More are expected on March 20, 2025

Function of level switch

Level switch function

Temperature contact function

Ordering code

Resistance

electrical

Reed contacts of the float switches with connection K24 for mating connector M12 x 1; 4-pole

Temperature contacts of the float switches with connection K24 for mating connector M12 x 1; 4-pole

Reed contacts of the float switches with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804

Temperature contacts of the float switches with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804

Assignment to reservoirs

Float switches with min./max. switching points

Float switches with min. early warning switching points

Dimensions: Float switches with two switching contacts

Pinout

Dimensions: Float switches with two switching contacts and temperature contact

Pinout

Installation information

Normative reference

Mating connectors

Use in potentially explosive atmospheres according to Directive 94/9/EC (ATEX)

Related Products

Information

Account

Reed contacts of the float switches
with connection K24 for mating connector M12 x 1; 4-pole

Temperature contacts of the float switches
with connection K24 for mating connector M12 x 1; 4-pole

Reed contacts of the float switches
with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804

Temperature contacts of the float switches
with connection K14 according to DIN EN 175301-803 / K6 according to DIN EN 175201-804