MARS 43353 Pressure Switch
The MARS 43353 Pressure Switch is a heavy-duty low pressure control designed for precise R410A refrigeration system protection and traditional HVAC applications. This SPST auto-reset switch features a factory-set 75 PSI open and 100 PSI close calibration, ensuring reliable compressor safety against loss of charge or vacuum conditions. Built with a hermetically sealed sensor and tamper-proof construction, the 4-Series Klixon design offers a 100,000 cycle life at rated current. The unit includes a 1/4" female flare connection with an internal deflator valve for direct mounting on service ports, eliminating the need for additional capillary tubes or complex bracketry. Rated for 6 Amps at 24-240 VAC, it provides contractors with a universal HVAC replacement solution that maintains terminal integrity via 18-inch blue XLP leads. This component is essential for preventing compressor overheating and ensuring long-term operational efficiency in demanding commercial or residential environments.
Key Benefits for Technicians- Automatic Reset Logic: Eliminates manual intervention by cycling the circuit back to "closed" once system pressure reaches 100 PSI.
- Direct Mount Interface: Built-in core deflator allows for fast installation on any 1/4" Schrader port without loss of refrigerant.
- Environmentally Sealed: The hermetically sealed housing protects internal contacts from moisture, dust, and vibration.
- Multi-Voltage Compatibility: High-performance contact rating supports applications ranging from 24V control circuits to 240V primary systems.
- Compact Profile: Lightweight design reduces stress on copper tubing and simplifies installation in tight compressor compartments.
What is the primary application for the MARS 43353?
This switch is typically used as a low-pressure cutout to protect compressors in air conditioning and refrigeration systems. It helps prevent coil icing and compressor damage caused by low suction pressure.
Does this switch require a specific mounting orientation?
No. Thanks to its direct-mount 1/4" flare connection and lightweight Klixon sensor, it can be installed in any orientation directly onto the refrigeration line.
Can this be used with newer refrigerants?
Yes, the 4-Series design is specifically rated for R410A high-pressure environments as well as legacy refrigerants, provided the 75/100 PSI setpoints meet your system's requirements.
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.
Original: $53.86
-65%$53.86
$18.85MARS 43353 Pressure Switch
The MARS 43353 Pressure Switch is a heavy-duty low pressure control designed for precise R410A refrigeration system protection and traditional HVAC applications. This SPST auto-reset switch features a factory-set 75 PSI open and 100 PSI close calibration, ensuring reliable compressor safety against loss of charge or vacuum conditions. Built with a hermetically sealed sensor and tamper-proof construction, the 4-Series Klixon design offers a 100,000 cycle life at rated current. The unit includes a 1/4" female flare connection with an internal deflator valve for direct mounting on service ports, eliminating the need for additional capillary tubes or complex bracketry. Rated for 6 Amps at 24-240 VAC, it provides contractors with a universal HVAC replacement solution that maintains terminal integrity via 18-inch blue XLP leads. This component is essential for preventing compressor overheating and ensuring long-term operational efficiency in demanding commercial or residential environments.
Key Benefits for Technicians- Automatic Reset Logic: Eliminates manual intervention by cycling the circuit back to "closed" once system pressure reaches 100 PSI.
- Direct Mount Interface: Built-in core deflator allows for fast installation on any 1/4" Schrader port without loss of refrigerant.
- Environmentally Sealed: The hermetically sealed housing protects internal contacts from moisture, dust, and vibration.
- Multi-Voltage Compatibility: High-performance contact rating supports applications ranging from 24V control circuits to 240V primary systems.
- Compact Profile: Lightweight design reduces stress on copper tubing and simplifies installation in tight compressor compartments.
What is the primary application for the MARS 43353?
This switch is typically used as a low-pressure cutout to protect compressors in air conditioning and refrigeration systems. It helps prevent coil icing and compressor damage caused by low suction pressure.
Does this switch require a specific mounting orientation?
No. Thanks to its direct-mount 1/4" flare connection and lightweight Klixon sensor, it can be installed in any orientation directly onto the refrigeration line.
Can this be used with newer refrigerants?
Yes, the 4-Series design is specifically rated for R410A high-pressure environments as well as legacy refrigerants, provided the 75/100 PSI setpoints meet your system's requirements.
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.
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Description
The MARS 43353 Pressure Switch is a heavy-duty low pressure control designed for precise R410A refrigeration system protection and traditional HVAC applications. This SPST auto-reset switch features a factory-set 75 PSI open and 100 PSI close calibration, ensuring reliable compressor safety against loss of charge or vacuum conditions. Built with a hermetically sealed sensor and tamper-proof construction, the 4-Series Klixon design offers a 100,000 cycle life at rated current. The unit includes a 1/4" female flare connection with an internal deflator valve for direct mounting on service ports, eliminating the need for additional capillary tubes or complex bracketry. Rated for 6 Amps at 24-240 VAC, it provides contractors with a universal HVAC replacement solution that maintains terminal integrity via 18-inch blue XLP leads. This component is essential for preventing compressor overheating and ensuring long-term operational efficiency in demanding commercial or residential environments.
Key Benefits for Technicians- Automatic Reset Logic: Eliminates manual intervention by cycling the circuit back to "closed" once system pressure reaches 100 PSI.
- Direct Mount Interface: Built-in core deflator allows for fast installation on any 1/4" Schrader port without loss of refrigerant.
- Environmentally Sealed: The hermetically sealed housing protects internal contacts from moisture, dust, and vibration.
- Multi-Voltage Compatibility: High-performance contact rating supports applications ranging from 24V control circuits to 240V primary systems.
- Compact Profile: Lightweight design reduces stress on copper tubing and simplifies installation in tight compressor compartments.
What is the primary application for the MARS 43353?
This switch is typically used as a low-pressure cutout to protect compressors in air conditioning and refrigeration systems. It helps prevent coil icing and compressor damage caused by low suction pressure.
Does this switch require a specific mounting orientation?
No. Thanks to its direct-mount 1/4" flare connection and lightweight Klixon sensor, it can be installed in any orientation directly onto the refrigeration line.
Can this be used with newer refrigerants?
Yes, the 4-Series design is specifically rated for R410A high-pressure environments as well as legacy refrigerants, provided the 75/100 PSI setpoints meet your system's requirements.
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.
