
Marvair 50020 Compressor Contactor
The Marvair 50020 Compressor Contactor is a mission-critical 2-pole HVAC contactor engineered for consistent switching in high-draw industrial and commercial cooling applications. This 30 Amp compressor contactor is the dedicated OEM replacement for managing power flow to the compressor, specifically designed to withstand the inductive load spikes common in Marvair ComPac wall-mount air conditioners like the HVEA30, HVeSA36, and HVESA42 units. With a coil rated for 208/230V, this component ensures the reliable engagement of the compressor circuit while providing essential protection against electrical overload. As a technician, you know that a pitted or welded contactor is a leading cause of compressor failure; replacing a worn unit with this genuine Marvair 50020 part restores the system’s electrical integrity and prevents expensive secondary damage to the windings. Its robust construction is tailored for the high-duty cycles of telecommunication shelters and modular classroom environments where uptime is non-negotiable.
Key Benefits
- Precise Electrical Control: Specifically calibrated for 208/230V systems to ensure clean engagement and disengagement of the compressor.
- Enhanced System Protection: Acts as a primary defense against electrical surges and overloads, preserving the life of the compressor motor.
- OEM Compatibility: Replaces factory part 50020 and Honeywell cross-reference R8243B-1021 for a perfect mechanical and electrical fit.
- Industrial-Grade Durability: Built to handle the heavy-duty cycles required in telecom shelters and commercial HVAC/R applications.
Common Questions
What are the symptoms of a failing Marvair 50020 contactor?
Common signs include a buzzing or humming noise from the control box, charred or pitted contact points, or a compressor that fails to start despite receiving a call for cooling from the thermostat.
Can I use a generic 2-pole contactor instead of the Marvair 50020?
While some universal 30 Amp contactors may fit the footprint, using the OEM 50020 ensures the inductive load ratings and coil resistance match the original control board specifications, preventing premature wear on other Marvair furnace or AC components.
Does this contactor handle both legs of the power supply?
Yes, as a 2-pole contactor, it is designed to break both lines of the incoming power to the compressor, ensuring the circuit is fully de-energized when the unit is not running.
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: $69.01
-65%$69.01
$24.15Marvair 50020 Compressor Contactor
The Marvair 50020 Compressor Contactor is a mission-critical 2-pole HVAC contactor engineered for consistent switching in high-draw industrial and commercial cooling applications. This 30 Amp compressor contactor is the dedicated OEM replacement for managing power flow to the compressor, specifically designed to withstand the inductive load spikes common in Marvair ComPac wall-mount air conditioners like the HVEA30, HVeSA36, and HVESA42 units. With a coil rated for 208/230V, this component ensures the reliable engagement of the compressor circuit while providing essential protection against electrical overload. As a technician, you know that a pitted or welded contactor is a leading cause of compressor failure; replacing a worn unit with this genuine Marvair 50020 part restores the system’s electrical integrity and prevents expensive secondary damage to the windings. Its robust construction is tailored for the high-duty cycles of telecommunication shelters and modular classroom environments where uptime is non-negotiable.
Key Benefits
- Precise Electrical Control: Specifically calibrated for 208/230V systems to ensure clean engagement and disengagement of the compressor.
- Enhanced System Protection: Acts as a primary defense against electrical surges and overloads, preserving the life of the compressor motor.
- OEM Compatibility: Replaces factory part 50020 and Honeywell cross-reference R8243B-1021 for a perfect mechanical and electrical fit.
- Industrial-Grade Durability: Built to handle the heavy-duty cycles required in telecom shelters and commercial HVAC/R applications.
Common Questions
What are the symptoms of a failing Marvair 50020 contactor?
Common signs include a buzzing or humming noise from the control box, charred or pitted contact points, or a compressor that fails to start despite receiving a call for cooling from the thermostat.
Can I use a generic 2-pole contactor instead of the Marvair 50020?
While some universal 30 Amp contactors may fit the footprint, using the OEM 50020 ensures the inductive load ratings and coil resistance match the original control board specifications, preventing premature wear on other Marvair furnace or AC components.
Does this contactor handle both legs of the power supply?
Yes, as a 2-pole contactor, it is designed to break both lines of the incoming power to the compressor, ensuring the circuit is fully de-energized when the unit is not running.
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
Shipping & Returns
Shipping & Returns
Description
The Marvair 50020 Compressor Contactor is a mission-critical 2-pole HVAC contactor engineered for consistent switching in high-draw industrial and commercial cooling applications. This 30 Amp compressor contactor is the dedicated OEM replacement for managing power flow to the compressor, specifically designed to withstand the inductive load spikes common in Marvair ComPac wall-mount air conditioners like the HVEA30, HVeSA36, and HVESA42 units. With a coil rated for 208/230V, this component ensures the reliable engagement of the compressor circuit while providing essential protection against electrical overload. As a technician, you know that a pitted or welded contactor is a leading cause of compressor failure; replacing a worn unit with this genuine Marvair 50020 part restores the system’s electrical integrity and prevents expensive secondary damage to the windings. Its robust construction is tailored for the high-duty cycles of telecommunication shelters and modular classroom environments where uptime is non-negotiable.
Key Benefits
- Precise Electrical Control: Specifically calibrated for 208/230V systems to ensure clean engagement and disengagement of the compressor.
- Enhanced System Protection: Acts as a primary defense against electrical surges and overloads, preserving the life of the compressor motor.
- OEM Compatibility: Replaces factory part 50020 and Honeywell cross-reference R8243B-1021 for a perfect mechanical and electrical fit.
- Industrial-Grade Durability: Built to handle the heavy-duty cycles required in telecom shelters and commercial HVAC/R applications.
Common Questions
What are the symptoms of a failing Marvair 50020 contactor?
Common signs include a buzzing or humming noise from the control box, charred or pitted contact points, or a compressor that fails to start despite receiving a call for cooling from the thermostat.
Can I use a generic 2-pole contactor instead of the Marvair 50020?
While some universal 30 Amp contactors may fit the footprint, using the OEM 50020 ensures the inductive load ratings and coil resistance match the original control board specifications, preventing premature wear on other Marvair furnace or AC components.
Does this contactor handle both legs of the power supply?
Yes, as a 2-pole contactor, it is designed to break both lines of the incoming power to the compressor, ensuring the circuit is fully de-energized when the unit is not running.
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.












