Working Principle:
This series products are mainly uses the characteristics of the built-in stainless steel snap disc to be snapped under a certain pressure. When the disc snaps, it can drive the conversion of electrical contacts through a transfer pin. When the pressure is reduced to below the recovery point, the pressure control can be reset automatically.

Application:
This series products are used for vacuum pressure control (negative pressure). Typical application includes: safety devices, air conditioning, refrigerant recovery equipment, refrigeration equipment, vacuum generator, vacuum tank, electric vehicle braking system etc.

Specification:
1.Working pressure range: -0.85-1.5bar（-0.085~0.15MPa）
2.Burst pressure: >35MPa
3.Ambient temperature: -30℃~+80℃
4.Medium temperature: -50℃~+120℃
5.Cycle life at rated current: 30,000 cycles, 50,000 cycles, 100,000 cycles, 200,000 cycles,500,000 cycles for optional
6.Electrical rating: AC120V/240V,375VA；AC/DC36V,3A；AC120V,6FLA,36LRA；AC240V,3FLA,15LRA 
7.Dielectric strength: AC700V/S between T-T. AC2000V/S between T-C
8.Switch configuration: SPST( normally-open or normally-closed), Auto-reset
9.Electrical connection: 6.35×0.8mm QC, or others wire lead
10.Fitting: NPT1/8",G1/8",NPT1/4",G1/4",7/16-20UNF,1/4" tube etc,or customized by your requirement. Connection material can be use brass or stainless steel