MARS 43331 Pressure Switch
The MARS 43331 Pressure Switch is a professional-grade high pressure cutout designed for heavy-duty HVACR applications. Engineered for precision, this SPST normally closed control features a fixed setpoint that triggers an open on pressure rise at 400 PSI and provides an automatic reset when system pressure drops to 300 PSI. This encapsulated pressure control is built to withstand harsh environments, utilizing a hermetically sealed sensor to ensure consistent setpoint repeatability and protection against moisture and contaminants. With a 1/4 inch SAE female flare connection and a built-in valve core depressor, this switch allows for direct mounting on refrigeration lines without the need for capillary tubes. Rated for 24V to 240V at 6 Amps, it is fully compatible with R-410A, R-22, and other high-pressure refrigerants. This direct mount switch is an essential safety component for preventing compressor failure due to excessive head pressure in residential and commercial cooling systems.
Key Benefits for Contractors- Universal Compatibility: Designed for use with HFC, HCFC, and CFC refrigerants, including R-410A systems.
- Reliable Protection: Automated 400 PSI cutout prevents liquid slugging and mechanical stress during high ambient conditions.
- Streamlined Installation: 18-inch leads and 1/4" female flare with depressor allow for fast field replacement.
- Robust Design: Features a 5000 PSI burst pressure rating and tamper-proof construction for long-term durability.
- Versatile Application: Suitable for condenser fan cycling and high-limit protection in heat pumps and AC units.
Is the reset manual or automatic for this model?
The MARS 43331 is an automatic reset switch. It will open the circuit at 400 PSI and automatically close it once the pressure returns to the 300 PSI cut-in point.
Can this be mounted directly on the service valve?
Yes, the 1/4" SAE female flare fitting includes a valve core depressor, allowing for direct mounting on standard service ports.
What is the switch action for the MARS 43331?
This is a normally closed SPST switch that opens on pressure rise, making it an ideal high-limit safety control.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
MARS 43331 Pressure Switch
The MARS 43331 Pressure Switch is a professional-grade high pressure cutout designed for heavy-duty HVACR applications. Engineered for precision, this SPST normally closed control features a fixed setpoint that triggers an open on pressure rise at 400 PSI and provides an automatic reset when system pressure drops to 300 PSI. This encapsulated pressure control is built to withstand harsh environments, utilizing a hermetically sealed sensor to ensure consistent setpoint repeatability and protection against moisture and contaminants. With a 1/4 inch SAE female flare connection and a built-in valve core depressor, this switch allows for direct mounting on refrigeration lines without the need for capillary tubes. Rated for 24V to 240V at 6 Amps, it is fully compatible with R-410A, R-22, and other high-pressure refrigerants. This direct mount switch is an essential safety component for preventing compressor failure due to excessive head pressure in residential and commercial cooling systems.
Key Benefits for Contractors- Universal Compatibility: Designed for use with HFC, HCFC, and CFC refrigerants, including R-410A systems.
- Reliable Protection: Automated 400 PSI cutout prevents liquid slugging and mechanical stress during high ambient conditions.
- Streamlined Installation: 18-inch leads and 1/4" female flare with depressor allow for fast field replacement.
- Robust Design: Features a 5000 PSI burst pressure rating and tamper-proof construction for long-term durability.
- Versatile Application: Suitable for condenser fan cycling and high-limit protection in heat pumps and AC units.
Is the reset manual or automatic for this model?
The MARS 43331 is an automatic reset switch. It will open the circuit at 400 PSI and automatically close it once the pressure returns to the 300 PSI cut-in point.
Can this be mounted directly on the service valve?
Yes, the 1/4" SAE female flare fitting includes a valve core depressor, allowing for direct mounting on standard service ports.
What is the switch action for the MARS 43331?
This is a normally closed SPST switch that opens on pressure rise, making it an ideal high-limit safety control.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Shipping & Returns
Description
The MARS 43331 Pressure Switch is a professional-grade high pressure cutout designed for heavy-duty HVACR applications. Engineered for precision, this SPST normally closed control features a fixed setpoint that triggers an open on pressure rise at 400 PSI and provides an automatic reset when system pressure drops to 300 PSI. This encapsulated pressure control is built to withstand harsh environments, utilizing a hermetically sealed sensor to ensure consistent setpoint repeatability and protection against moisture and contaminants. With a 1/4 inch SAE female flare connection and a built-in valve core depressor, this switch allows for direct mounting on refrigeration lines without the need for capillary tubes. Rated for 24V to 240V at 6 Amps, it is fully compatible with R-410A, R-22, and other high-pressure refrigerants. This direct mount switch is an essential safety component for preventing compressor failure due to excessive head pressure in residential and commercial cooling systems.
Key Benefits for Contractors- Universal Compatibility: Designed for use with HFC, HCFC, and CFC refrigerants, including R-410A systems.
- Reliable Protection: Automated 400 PSI cutout prevents liquid slugging and mechanical stress during high ambient conditions.
- Streamlined Installation: 18-inch leads and 1/4" female flare with depressor allow for fast field replacement.
- Robust Design: Features a 5000 PSI burst pressure rating and tamper-proof construction for long-term durability.
- Versatile Application: Suitable for condenser fan cycling and high-limit protection in heat pumps and AC units.
Is the reset manual or automatic for this model?
The MARS 43331 is an automatic reset switch. It will open the circuit at 400 PSI and automatically close it once the pressure returns to the 300 PSI cut-in point.
Can this be mounted directly on the service valve?
Yes, the 1/4" SAE female flare fitting includes a valve core depressor, allowing for direct mounting on standard service ports.
What is the switch action for the MARS 43331?
This is a normally closed SPST switch that opens on pressure rise, making it an ideal high-limit safety control.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
