MARS 43304 Pressure Switch
The MARS 43304 Pressure Switch is a high-performance SPST condenser fan cycling switch engineered for modern HVACR systems, specifically optimized for R410A applications. Operating on a close on rise logic, this switch features a factory-set 225 PSI cut-in and 150 PSI cut-out (Open Fall), providing precise low-ambient head pressure control. Designed for direct mounting via a 1/4 inch female flare S.A.E. connection with an integrated internal deflator, it eliminates the need for capillary tubes, reducing potential leak points in the field. The heavy-duty 6 amp contact rating at 24-240V ensures compatibility with a wide range of residential and commercial condenser fan motors. Built with a tamper-proof, hermetically sealed housing and 18-inch color-coded leads, the MARS 43304 provides the reliability seasoned contractors expect when maintaining optimal head pressure and system efficiency in demanding environments.
Key Benefits for HVACR Technicians:- Internal Deflator Pin: Allows for direct installation on 1/4 inch flare service ports without needing separate depressors.
- R410A Compatibility: Specifically rated for the high-pressure demands of R410A systems, featuring a 5000 PSI burst pressure rating.
- Automatic Reset: The fan cycling pressure switch resets automatically, ensuring continuous operation without manual intervention.
- Compact Direct Mount: Saves space in tight condensing units and reduces vibration-related failure points common with remote-mounted switches.
- Broad Voltage Range: Single-pole single-throw (SPST) switch supports 24V, 120V, and 240V control circuits.
What are the specific pressure settings for the MARS 43304?
This switch is calibrated to close (start the fan) when pressure reaches 225 PSI and open (stop the fan) when pressure drops to 150 PSI.
How do I wire this fan cycling switch?
The unit comes with 18-inch blue XLP wire leads with 1/2-inch stripped ends for easy integration into the motor or contactor control circuit.
Is this switch suitable for low ambient cooling?
Yes, the MARS 43304 is primarily used to maintain head pressure by cycling the condenser fan during low ambient conditions, prevent evaporator freeze-ups, and ensure proper refrigerant flow.
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 43304 Pressure Switch
The MARS 43304 Pressure Switch is a high-performance SPST condenser fan cycling switch engineered for modern HVACR systems, specifically optimized for R410A applications. Operating on a close on rise logic, this switch features a factory-set 225 PSI cut-in and 150 PSI cut-out (Open Fall), providing precise low-ambient head pressure control. Designed for direct mounting via a 1/4 inch female flare S.A.E. connection with an integrated internal deflator, it eliminates the need for capillary tubes, reducing potential leak points in the field. The heavy-duty 6 amp contact rating at 24-240V ensures compatibility with a wide range of residential and commercial condenser fan motors. Built with a tamper-proof, hermetically sealed housing and 18-inch color-coded leads, the MARS 43304 provides the reliability seasoned contractors expect when maintaining optimal head pressure and system efficiency in demanding environments.
Key Benefits for HVACR Technicians:- Internal Deflator Pin: Allows for direct installation on 1/4 inch flare service ports without needing separate depressors.
- R410A Compatibility: Specifically rated for the high-pressure demands of R410A systems, featuring a 5000 PSI burst pressure rating.
- Automatic Reset: The fan cycling pressure switch resets automatically, ensuring continuous operation without manual intervention.
- Compact Direct Mount: Saves space in tight condensing units and reduces vibration-related failure points common with remote-mounted switches.
- Broad Voltage Range: Single-pole single-throw (SPST) switch supports 24V, 120V, and 240V control circuits.
What are the specific pressure settings for the MARS 43304?
This switch is calibrated to close (start the fan) when pressure reaches 225 PSI and open (stop the fan) when pressure drops to 150 PSI.
How do I wire this fan cycling switch?
The unit comes with 18-inch blue XLP wire leads with 1/2-inch stripped ends for easy integration into the motor or contactor control circuit.
Is this switch suitable for low ambient cooling?
Yes, the MARS 43304 is primarily used to maintain head pressure by cycling the condenser fan during low ambient conditions, prevent evaporator freeze-ups, and ensure proper refrigerant flow.
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 43304 Pressure Switch is a high-performance SPST condenser fan cycling switch engineered for modern HVACR systems, specifically optimized for R410A applications. Operating on a close on rise logic, this switch features a factory-set 225 PSI cut-in and 150 PSI cut-out (Open Fall), providing precise low-ambient head pressure control. Designed for direct mounting via a 1/4 inch female flare S.A.E. connection with an integrated internal deflator, it eliminates the need for capillary tubes, reducing potential leak points in the field. The heavy-duty 6 amp contact rating at 24-240V ensures compatibility with a wide range of residential and commercial condenser fan motors. Built with a tamper-proof, hermetically sealed housing and 18-inch color-coded leads, the MARS 43304 provides the reliability seasoned contractors expect when maintaining optimal head pressure and system efficiency in demanding environments.
Key Benefits for HVACR Technicians:- Internal Deflator Pin: Allows for direct installation on 1/4 inch flare service ports without needing separate depressors.
- R410A Compatibility: Specifically rated for the high-pressure demands of R410A systems, featuring a 5000 PSI burst pressure rating.
- Automatic Reset: The fan cycling pressure switch resets automatically, ensuring continuous operation without manual intervention.
- Compact Direct Mount: Saves space in tight condensing units and reduces vibration-related failure points common with remote-mounted switches.
- Broad Voltage Range: Single-pole single-throw (SPST) switch supports 24V, 120V, and 240V control circuits.
What are the specific pressure settings for the MARS 43304?
This switch is calibrated to close (start the fan) when pressure reaches 225 PSI and open (stop the fan) when pressure drops to 150 PSI.
How do I wire this fan cycling switch?
The unit comes with 18-inch blue XLP wire leads with 1/2-inch stripped ends for easy integration into the motor or contactor control circuit.
Is this switch suitable for low ambient cooling?
Yes, the MARS 43304 is primarily used to maintain head pressure by cycling the condenser fan during low ambient conditions, prevent evaporator freeze-ups, and ensure proper refrigerant flow.
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.
