MARS 32391 Relay
The MARS 32391 Relay is a field-proven solid state delay on make timer engineered to protect HVACR equipment from rapid short cycling. Designed for professional contractors, this universal 2-wire delay on make solution operates across a wide 18-240V AC input range, making it a staple for servicing residential and commercial systems alike. This MARS 32391 adjustable timer features a heavy-duty dial that allows for precise time delay relay settings from 0.03 seconds up to 10 minutes, ensuring compatibility with various compressor and motor configurations. The unit is totally encapsulated for superior heat dissipation and environmental protection, with .25 inch quick connect terminals to streamline field installation. Its high-accuracy circuitry is specifically designed to work seamlessly with thermostat anticipators, preventing nuisance trips and ensuring reliable load energization only after the specified delay period has elapsed.
Key Benefits
- Universal Voltage Compatibility: Supports 18-240V AC, reducing the need to carry multiple fixed-voltage components on the truck.
- Short Cycle Protection: Extends the lifespan of compressors and motors by preventing rapid restarts after power interruptions or thermostat cycles.
- Adjustable Timing Range: User-defined dial allows for flexible delay on make settings between 0.03 seconds and 600 seconds (10 minutes).
- Rugged Solid State Design: Totally enclosed and encapsulated to resist moisture, vibration, and debris in demanding HVACR environments.
- Contractor-Friendly Installation: Simple 2-wire timer series connection with standard quick connect terminals for rapid retrofitting.
Common Questions
How do I wire a delay on make relay to a 24V thermostat?
The MARS 32391 is installed in series with the load. Connect one lead to the thermostat "Y" terminal and the other to the contractor coil. Since it is a solid state timer, it requires a minimum latch current of 0.040 amps to operate correctly.
Can this relay replace a fixed 5-minute delay?
Yes, because this is an adjustable delay on make relay, you can set the dial to the 5-minute mark to match OEM specifications while maintaining the flexibility to adjust for specific site conditions.
What happens if there is a momentary power loss?
Upon restoration of power, the internal timing circuit is triggered, and the MARS 32391 will hold the load open for the duration of the set delay, effectively protecting the compressor from starting against high head pressure.
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 32391 Relay
The MARS 32391 Relay is a field-proven solid state delay on make timer engineered to protect HVACR equipment from rapid short cycling. Designed for professional contractors, this universal 2-wire delay on make solution operates across a wide 18-240V AC input range, making it a staple for servicing residential and commercial systems alike. This MARS 32391 adjustable timer features a heavy-duty dial that allows for precise time delay relay settings from 0.03 seconds up to 10 minutes, ensuring compatibility with various compressor and motor configurations. The unit is totally encapsulated for superior heat dissipation and environmental protection, with .25 inch quick connect terminals to streamline field installation. Its high-accuracy circuitry is specifically designed to work seamlessly with thermostat anticipators, preventing nuisance trips and ensuring reliable load energization only after the specified delay period has elapsed.
Key Benefits
- Universal Voltage Compatibility: Supports 18-240V AC, reducing the need to carry multiple fixed-voltage components on the truck.
- Short Cycle Protection: Extends the lifespan of compressors and motors by preventing rapid restarts after power interruptions or thermostat cycles.
- Adjustable Timing Range: User-defined dial allows for flexible delay on make settings between 0.03 seconds and 600 seconds (10 minutes).
- Rugged Solid State Design: Totally enclosed and encapsulated to resist moisture, vibration, and debris in demanding HVACR environments.
- Contractor-Friendly Installation: Simple 2-wire timer series connection with standard quick connect terminals for rapid retrofitting.
Common Questions
How do I wire a delay on make relay to a 24V thermostat?
The MARS 32391 is installed in series with the load. Connect one lead to the thermostat "Y" terminal and the other to the contractor coil. Since it is a solid state timer, it requires a minimum latch current of 0.040 amps to operate correctly.
Can this relay replace a fixed 5-minute delay?
Yes, because this is an adjustable delay on make relay, you can set the dial to the 5-minute mark to match OEM specifications while maintaining the flexibility to adjust for specific site conditions.
What happens if there is a momentary power loss?
Upon restoration of power, the internal timing circuit is triggered, and the MARS 32391 will hold the load open for the duration of the set delay, effectively protecting the compressor from starting against high head pressure.
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 MARS 32391 Relay is a field-proven solid state delay on make timer engineered to protect HVACR equipment from rapid short cycling. Designed for professional contractors, this universal 2-wire delay on make solution operates across a wide 18-240V AC input range, making it a staple for servicing residential and commercial systems alike. This MARS 32391 adjustable timer features a heavy-duty dial that allows for precise time delay relay settings from 0.03 seconds up to 10 minutes, ensuring compatibility with various compressor and motor configurations. The unit is totally encapsulated for superior heat dissipation and environmental protection, with .25 inch quick connect terminals to streamline field installation. Its high-accuracy circuitry is specifically designed to work seamlessly with thermostat anticipators, preventing nuisance trips and ensuring reliable load energization only after the specified delay period has elapsed.
Key Benefits
- Universal Voltage Compatibility: Supports 18-240V AC, reducing the need to carry multiple fixed-voltage components on the truck.
- Short Cycle Protection: Extends the lifespan of compressors and motors by preventing rapid restarts after power interruptions or thermostat cycles.
- Adjustable Timing Range: User-defined dial allows for flexible delay on make settings between 0.03 seconds and 600 seconds (10 minutes).
- Rugged Solid State Design: Totally enclosed and encapsulated to resist moisture, vibration, and debris in demanding HVACR environments.
- Contractor-Friendly Installation: Simple 2-wire timer series connection with standard quick connect terminals for rapid retrofitting.
Common Questions
How do I wire a delay on make relay to a 24V thermostat?
The MARS 32391 is installed in series with the load. Connect one lead to the thermostat "Y" terminal and the other to the contractor coil. Since it is a solid state timer, it requires a minimum latch current of 0.040 amps to operate correctly.
Can this relay replace a fixed 5-minute delay?
Yes, because this is an adjustable delay on make relay, you can set the dial to the 5-minute mark to match OEM specifications while maintaining the flexibility to adjust for specific site conditions.
What happens if there is a momentary power loss?
Upon restoration of power, the internal timing circuit is triggered, and the MARS 32391 will hold the load open for the duration of the set delay, effectively protecting the compressor from starting against high head pressure.
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.
