Oil Level Switch

Technical data: HBSO-SSR-2

The HBSO1 (for PAO & mineral oil) and HBSO2 (for POE & PAG oil) are Level Switches designed to detect lubricating oils in refrigeration systems. Commonly installed on compressors and oil separators, they can also be used in other locations within the oil system. The unique measurement principle allows these sensors to detect oil without detecting refrigerant, providing high accuracy even in challenging conditions with oil spray and foam.

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Product features
Applications
Specifications
Ordering code
Downloads

Product features

CO2 system application: These robust switches are designed to withstand high pressure and temperature, making them suitable for transcritical CO2 refrigeration systems.
Liquid temperature range: Operate across a temperature range of 0°C to 80°C (32°F to 176°F).
Pressure tolerance: Rated for pressures up to 150 bar (2175 psi).
Power supply: They feature a universal power supply compatible with 90-240V AC, offering flexibility for various installation scenarios.
Split design: Simplifies installation and diagnostics; electronic parts can be removed with two screws.
LED indicators: Clear LED indication for easy status checking.

Power supply
Voltage	90...240 V AC
Max current consumption	40 W
Plug connection	M12 - DIN 0627
Output
Output	Solid State Relay
Contact function	NC or NO
Environmental conditions
Ambient temperature	-30...+50°C
Oil temperature	0...80°C
Max pressure	150 bar
Protection degree	IP54 *
Vibrations	IEC 60068-2-6 (4g)
Mechanical specifications
Thread connection	1/2", 3/4” & 1 1/8"
Material (liquid parts)	AISI 304 / PTFE
Material (electronic parts)	Nylon 6 (PA)
Approvals
EMC test	EN 61000-2
Indication
LED indication	4 x red
Accessories
Compressor adapter	HBS/ADAP/FLANGE
*For outdoor and low temperature application use low temperature type

Output	Thread type	Ordering code
NO	1/2" NPT	HBSO1-SSR-2/NO-1
NC	1/2" NPT	HBSO1-SSR-2/NC-1
NO	3/4" NPT	HBSO1-SSR-2/NO-2
NC	3/4" NPT	HBSO1-SSR-2/NC-2
NO	1/2" BSPP	HBSO1-SSR-2/NO-5
NC	1/2" BSPP	HBSO1-SSR-2/NC-5
NO	3/4" BSPP	HBSO1-SSR-2/NO-6
NC	3/4" BSPP	HBSO1-SSR-2/NC-6
NO	1 1/8" UNEF	HBSO1-SSR-2/NO-7
NC	1 1/8" UNEF	HBSO1-SSR-2/NC-7
NO	1/2" NPT	HBSO2-SSR-2/NO-1
NC	1/2" NPT	HBSO2-SSR-2/NC-1
NO	3/4" NPT	HBSO2-SSR-2/NO-2
NC	3/4" NPT	HBSO2-SSR-2/NC-2
NO	1/2" BSPP	HBSO2-SSR-2/NO-5
NC	1/2" BSPP	HBSO2-SSR-2/NC-5
NO	3/4" BSPP	HBSO2-SSR-2/NO-6
NC	3/4" BSPP	HBSO2-SSR-2/NC-6
NO	1 1/8" UNEF	HBSO2-SSR-2/NO-7
NC	1 1/8" UNEF	HBSO2-SSR-2/NC-7

Spare parts for HBSO-SSR-2
Electronic part for HBSO1-SSR-2/NO		HBSO1-SSR-2/NO-EL
Electronic part for HBSO1-SSR-2/NC		HBSO1-SSR-2/NC-EL
Electronic part for HBSO2-SSR-2/NO		HBSO2-SSR-2/NO-EL
Electronic part for HBSO2-SSR-2/NC		HBSO2-SSR-2/NC-EL

Useful info

Oil Level Switch

Product features

Applications

Specifications

Connection diagram

Drawing

Ordering code

Downloads

HB Products A/S