Automatic Reset Low Pressure Switch 0.15MPa - 0.7MPa Air Liquid Sensor

• Customization: Available
• Type: Mechanical
• Number of Switch: Single Control Switch
• Model NO.: PSA-01
• Usage: Control Switch, Playback Switch, Disconnector, Change-over Switch
• Application: Home, Commercial, Industrial, Vehicles
• Explosion-proof Type: Flameproof
• Contact: Normally Open
• Contact Type: Type b Contact
• Detection Method: Retro-reflective Mode
• Certification: ISO9001, CE, CCC
• Setting Pressure Range: 0.15 MPa -0.7 MPa
• Transport Package: Carton
• Trademark: Yuanben
• Origin: Shanghai
• Production Capacity: 100, 000 PCS/ Year

Product Description

Product brief: Yuanben PSA-01 automatic reset low pressure switch
The pressure switch is mainly used in the refrigeration cycle system, as a control device of the system over high pressure or low pressure protection, or used in the cooling system start and stop control device controlled by the system pressure in the refrigeration unit. According to its working principle, it can also be applied to other industrial control fields, such as steam electric iron, reservoir and other industries using pressure control.

Principle
When the pressure of the controlled medium rises to a certain set value, the butterfly shaped metal diaphragm will cause instability jump, and the switch contact will be connected (or disconnected) by pushing the ejector pin. When the pressure of the controlled medium drops to another set value, the butterfly shaped metal diaphragm will suddenly jump back to the original state, which makes the switch contact open (or connected), thus realizing the switch function.

The difference between the manual type and the automatic type: when the pressure of the controlled medium decreases, the switch can not reset automatically, and the circuit always remains in the state after conversion. Only when the reset button is pressed by hand, can the circuit return to its original state.

Specs

Item	Parameter
Pressure Setting Range	0.15MPa~0.7Mpa.
Electrical Ratings	120/240VAC, 375VA; 28VAC/VDC, 2A; 120VAC, 5.8FLA, 34LRA; 240VAC, 2.9FLA, 15LRA
Ambient Temperature And Humidity	-35ºC+120ºC; Less Than 95% RH
Controlling mode	Automatic reset
Contact Resistance	Less Than 20mΩ
Insulation Resistance	More Than 100ΩMΩ
Dielectric Voltage Withstand	Withstand 1500VAC For One Minute Without Breakdown
Burst Pressure	35Mpa For One Minute Without Body Rupture And Seals Failure
Leakage	Total Maximum Allowable Leak Rate Of 7×10^-6cc/sec Of At Least 70% Helium At 1.0Mpa
Mounting Mode	7/16-20 UNF-2B or 1/4"BSP
Wire cable	AWG 20 300V/600V
Durability	100,000 Cycles (Automatic)
Flame rated	UL94V-0