MARS 19164 Potential Relay
The MARS 19164 is a standard-service HVAC potential relay designed specifically for single-phase compressor motors requiring precise start-capacitor disconnection. As a professional-grade Model 164 relay, it features a pick-up voltage range of 245-275V and a drop-out voltage of 60-140V, ensuring reliable starting torque in high-demand refrigeration and air conditioning applications. Rated for 420V hold voltage and 35-amp contact current, this component is engineered to handle the inductive loads typically found in 1/3 HP systems. The tab-mount configuration and 1/4-inch quick-connect terminals allow for straightforward integration into existing control circuits, while the Class B insulation provides the thermal stability necessary for long-cycle operation in demanding environments. This OEM replacement relay is frequently utilized as a cross-reference for various thermal and potential starting devices, providing a dependable solution for contractors troubleshooting motor starting issues and capacitor-start, induction-run (CSIR) or capacitor-start, capacitor-run (CSCR) configurations.
Key Benefits for Technicians:
- Universal Application: Functions as a high-density OEM replacement for numerous potential relay models, reducing truck stock requirements.
- High Current Capacity: The 35A contact rating supports heavy-duty motor starting without premature contact pitting or welding.
- Precise Calibrations: Factory-set 395V/420V tolerance ensures the start capacitor is dropped out at the exact EMF threshold required for motor protection.
- Durable Construction: Features Class B insulation to withstand the high ambient temperatures common in condenser cabinets and refrigeration racks.
Common Questions & Answers:
What is the primary function of the MARS 19164 in a motor circuit?
It monitors the back EMF across the start winding and disconnects the start capacitor once the motor reaches approximately 75-80% of its synchronous speed.
Can this relay be mounted in any orientation?
For optimal performance and to maintain its pick-up voltage specs, it is recommended to follow the 'tab up' or specific orientation markings provided on the housing.
Is the 19164 compatible with 50/60 Hz systems?
Yes, it is rated for both 50 and 60 Hz cycles, making it suitable for a wide range of domestic and international refrigeration units.
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 19164 Potential Relay
The MARS 19164 is a standard-service HVAC potential relay designed specifically for single-phase compressor motors requiring precise start-capacitor disconnection. As a professional-grade Model 164 relay, it features a pick-up voltage range of 245-275V and a drop-out voltage of 60-140V, ensuring reliable starting torque in high-demand refrigeration and air conditioning applications. Rated for 420V hold voltage and 35-amp contact current, this component is engineered to handle the inductive loads typically found in 1/3 HP systems. The tab-mount configuration and 1/4-inch quick-connect terminals allow for straightforward integration into existing control circuits, while the Class B insulation provides the thermal stability necessary for long-cycle operation in demanding environments. This OEM replacement relay is frequently utilized as a cross-reference for various thermal and potential starting devices, providing a dependable solution for contractors troubleshooting motor starting issues and capacitor-start, induction-run (CSIR) or capacitor-start, capacitor-run (CSCR) configurations.
Key Benefits for Technicians:
- Universal Application: Functions as a high-density OEM replacement for numerous potential relay models, reducing truck stock requirements.
- High Current Capacity: The 35A contact rating supports heavy-duty motor starting without premature contact pitting or welding.
- Precise Calibrations: Factory-set 395V/420V tolerance ensures the start capacitor is dropped out at the exact EMF threshold required for motor protection.
- Durable Construction: Features Class B insulation to withstand the high ambient temperatures common in condenser cabinets and refrigeration racks.
Common Questions & Answers:
What is the primary function of the MARS 19164 in a motor circuit?
It monitors the back EMF across the start winding and disconnects the start capacitor once the motor reaches approximately 75-80% of its synchronous speed.
Can this relay be mounted in any orientation?
For optimal performance and to maintain its pick-up voltage specs, it is recommended to follow the 'tab up' or specific orientation markings provided on the housing.
Is the 19164 compatible with 50/60 Hz systems?
Yes, it is rated for both 50 and 60 Hz cycles, making it suitable for a wide range of domestic and international refrigeration units.
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 19164 is a standard-service HVAC potential relay designed specifically for single-phase compressor motors requiring precise start-capacitor disconnection. As a professional-grade Model 164 relay, it features a pick-up voltage range of 245-275V and a drop-out voltage of 60-140V, ensuring reliable starting torque in high-demand refrigeration and air conditioning applications. Rated for 420V hold voltage and 35-amp contact current, this component is engineered to handle the inductive loads typically found in 1/3 HP systems. The tab-mount configuration and 1/4-inch quick-connect terminals allow for straightforward integration into existing control circuits, while the Class B insulation provides the thermal stability necessary for long-cycle operation in demanding environments. This OEM replacement relay is frequently utilized as a cross-reference for various thermal and potential starting devices, providing a dependable solution for contractors troubleshooting motor starting issues and capacitor-start, induction-run (CSIR) or capacitor-start, capacitor-run (CSCR) configurations.
Key Benefits for Technicians:
- Universal Application: Functions as a high-density OEM replacement for numerous potential relay models, reducing truck stock requirements.
- High Current Capacity: The 35A contact rating supports heavy-duty motor starting without premature contact pitting or welding.
- Precise Calibrations: Factory-set 395V/420V tolerance ensures the start capacitor is dropped out at the exact EMF threshold required for motor protection.
- Durable Construction: Features Class B insulation to withstand the high ambient temperatures common in condenser cabinets and refrigeration racks.
Common Questions & Answers:
What is the primary function of the MARS 19164 in a motor circuit?
It monitors the back EMF across the start winding and disconnects the start capacitor once the motor reaches approximately 75-80% of its synchronous speed.
Can this relay be mounted in any orientation?
For optimal performance and to maintain its pick-up voltage specs, it is recommended to follow the 'tab up' or specific orientation markings provided on the housing.
Is the 19164 compatible with 50/60 Hz systems?
Yes, it is rated for both 50 and 60 Hz cycles, making it suitable for a wide range of domestic and international refrigeration units.
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.
