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Interruptor de presión de aire HVAC A402, piezas para calentador de agua, 0.5 psi

The A402 HVAC air pressure switch has a wide application in the water heater, wall-hanging stove, commercial air conditioning filtration system, VAV systems, and so on. Which are high quality and high precision.

HVAC Air Pressure Switch

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HVAC Air Pressure Switch Description

The A402 HVAC air pressure switch belongs to our A4 series family which is high-quality and high precision. It uses the unibody construction design to replace the traditional microswitch construction type, which has better precision, longer life, and is more stable. The accuracy for the A4 HVAC air pressure switch series is ±3Pa, which is a high level on the market.

Meanwhile, it not only has a wide working pressure range that is from 40 to 500Pa, so it can meet many different devices’ requirements. As well as it has good performance in working temperature, which is from -40 to 110℃. So, the switch will not easy to be affected by the environmental temperature.

Besides, it also has a long operating life, it has 250000 cycles of electrical life and 1000000 cycles of mechanical life at least. What’s more, we not only have the air pressure switch but also have the air pressure sensors, which can detect different places’ valves at the same time.  For more REGAL pressure & flow switch sensor products, please click the link or contact us to get more details.

 

A402 HVAC Air Pressure Switch Size

Tamaño del interruptor de presión de aire A4

A402 HVAC Air Pressure Switch Specification

Número de modelo A402 Air Pressure Sensing Switch
Medio de trabajo Aire o gases de escape
Tipos de terminales Conector rápido estándar 187 (4,8*0,5 mm)
Interfaz de tubo 6,3 de diámetro exterior, adecuado para tubos de 5 mm de diámetro interior.
Circuito SPST NO
Clasificación 1A  24VDC & 0.5A 125/250VAC
Voltaje de resistencia 3000 Pa (0,5 psi)
Vida eléctrica 25.000.000 ciclos
Salida de recuperación de gas Negativo
Temperatura de funcionamiento -40 a +110 ℃

 

Pressure Range Set Point
Set tolerance
Differential Range
ON=40 to 100 ±5 Pa(ON) & 8Pa(OFF) 15-30Pa
ON=100 to 200 ±8 Pa(ON) & 12Pa(OFF) 20-40Pa
ON=200 to 500 ±10 Pa(ON) & 15Pa(OFF) 10% – 20%
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