Vacuum Pressure Switch Negtive Pressure Wind Pressure Switch for Gas Boiler and Water Heater

• Customization: Available
• Type: Mechanical
• Number of Switch: Single Control Switch
• Model NO.: A4
• Structure: Amplifier Separated Type
• Usage: Control Switch
• Application: Home, Industrial
• Explosion-proof Type: Flameproof
• Contact: Normally Open
• Contact Type: Type c Contact
• Detection Method: Reflection Type
• Brand: Ritor
• Certification: ISO9001, CE
• Electronical: 0.1A@24VDC or 5A@24V AC
• Hose Connector: Ø 6.2 mm
• Electrical Connection: Flat Connector 6.3 or 4.8 mm
• Switch Type: Spdt
• Medium: Air and Neutral Gases
• Pressure Range: -5~-400PA
• Transport Package: 1 Boxes
• Specification: 400*300*400
• Trademark: Ritor
• Origin: China
• HS Code: 8536500000

Product Description

Introduction:
A40 Model pressure switches are specially developed for air flow pressure systems. Such as in gas fired heating systems. Or ensuring ventilation in heat pumps or ensuring the exhaust air flow in pellet boilers and gas boilers. HVAC, Energy Management, Food Service, Comfort and Recreation, and Facility Management are a few of the industries served by this switches.
This is the ideal pressure switch to control air flows in air conditioning and ventilation systems. It perform electrical switching action at low positive, negative or differential pressures. Fixed and adjustable set point models from -1000pa to +1000Pa are available.


Technical Data:

Working Pressure Range	-400Pa ~ -5Pa
Electronic Load	5A@24V DC, or 0.1A@24V AC, 0.1@250V AC
Working temperature	-25C ~ +85C
Duribility	100,000 Cycle
Terminal	187# & 250#
Drift	+5Pa
Switch Type	SPST-NO,SPDT
Certification	UL, CE

 
There are more than 5 million switches in use worldwide. Produced on a fully automated production line. High setting accuracy and reproducibility, combined with excellent reliability characterize a quality of switch above the industry norm.

Operational principle:

The A4 switch has a thermoplastic housing containing a diaphragm and snap-acting switch. Duo-barbed sample line connectors on each side of the diaphragm accept 1⁄4″ ID or 3⁄8″ ID slip-on flexible tubing.

The electrical connection consists of two (2) male 180 Degree quick-connect terminals. The snap action switch can be actuated by a positive or negative pressure, or by a pressure differential.

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