MARS 12257 Run Capacitor
Professional-grade MARS 12257 Run Capacitor is a high-performance 80/5 MFD 440V dual run capacitor designed for demanding HVACR applications. This round dual run capacitor features a heavy-duty aluminum construction with a non-PCB, oil-filled dielectric for efficient heat dissipation and consistent electrical performance. Rated for 440VAC, this component serves as a direct replacement for systems requiring 80+5 microfarad 440Vac or 370VAC ratings, providing contractors with a versatile solution for dual-motor startups in residential and commercial condenser units. To ensure technician safety and system integrity, the unit includes an integrated pressure-sensitive interrupter (PSI) designed to disconnect the capacitor in the event of internal failure, preventing casing rupture. Built to meet EIA-456-A industry standards for 60,000 hours of operational life, this 80/5 dual capacitor handles the startup load for both the compressor and fan motor simultaneously, maintaining the specific phase angle required for peak motor efficiency and reduced winding heat.
Key Benefits:- Dual-Section Versatility: Simultaneously supports an 80 MFD compressor load and a 5 MFD fan motor, simplifying inventory with a dual-voltage 370/440V compatibility.
- High Temperature Profile: Engineered to operate reliably in ambient temperatures ranging from -40°C to +70°C, essential for rooftop and sun-exposed condenser housings.
- Physical Durability: Features standard 1/4 inch quick-connect terminals and a compact round metal case for secure mounting in standard HVAC capacitor brackets.
- Safety Compliance: UL and CUL recognized with a 10,000 AFC safety rating, meeting rigorous AEC-Q200 and EIA guidelines for mechanical reliability.
Can I use a 440V capacitor if the old one was 370V?
Yes. You can always upgrade to a higher voltage rating like this 440VAC unit, as it provides a greater safety margin against voltage spikes. You should never downsize to a lower voltage than the original specification.
What do the HERM, FAN, and C terminals represent?
The "HERM" terminal connects to the hermetic compressor's start winding, "FAN" connects to the condenser fan motor, and "C" acts as the common line for the circuit. Always verify wire positions before disconnecting the old unit.
How do I know if my 80/5 dual capacitor has failed?
Common indicators include a bulging or "domed" top, oil leakage around the terminals, or a humming motor that fails to start. For accuracy, test with a multimeter to ensure the capacitance is within ±5% of the 80/5 MFD rating.
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: $73.17
-65%$73.17
$25.61MARS 12257 Run Capacitor
Professional-grade MARS 12257 Run Capacitor is a high-performance 80/5 MFD 440V dual run capacitor designed for demanding HVACR applications. This round dual run capacitor features a heavy-duty aluminum construction with a non-PCB, oil-filled dielectric for efficient heat dissipation and consistent electrical performance. Rated for 440VAC, this component serves as a direct replacement for systems requiring 80+5 microfarad 440Vac or 370VAC ratings, providing contractors with a versatile solution for dual-motor startups in residential and commercial condenser units. To ensure technician safety and system integrity, the unit includes an integrated pressure-sensitive interrupter (PSI) designed to disconnect the capacitor in the event of internal failure, preventing casing rupture. Built to meet EIA-456-A industry standards for 60,000 hours of operational life, this 80/5 dual capacitor handles the startup load for both the compressor and fan motor simultaneously, maintaining the specific phase angle required for peak motor efficiency and reduced winding heat.
Key Benefits:- Dual-Section Versatility: Simultaneously supports an 80 MFD compressor load and a 5 MFD fan motor, simplifying inventory with a dual-voltage 370/440V compatibility.
- High Temperature Profile: Engineered to operate reliably in ambient temperatures ranging from -40°C to +70°C, essential for rooftop and sun-exposed condenser housings.
- Physical Durability: Features standard 1/4 inch quick-connect terminals and a compact round metal case for secure mounting in standard HVAC capacitor brackets.
- Safety Compliance: UL and CUL recognized with a 10,000 AFC safety rating, meeting rigorous AEC-Q200 and EIA guidelines for mechanical reliability.
Can I use a 440V capacitor if the old one was 370V?
Yes. You can always upgrade to a higher voltage rating like this 440VAC unit, as it provides a greater safety margin against voltage spikes. You should never downsize to a lower voltage than the original specification.
What do the HERM, FAN, and C terminals represent?
The "HERM" terminal connects to the hermetic compressor's start winding, "FAN" connects to the condenser fan motor, and "C" acts as the common line for the circuit. Always verify wire positions before disconnecting the old unit.
How do I know if my 80/5 dual capacitor has failed?
Common indicators include a bulging or "domed" top, oil leakage around the terminals, or a humming motor that fails to start. For accuracy, test with a multimeter to ensure the capacitance is within ±5% of the 80/5 MFD rating.
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
Professional-grade MARS 12257 Run Capacitor is a high-performance 80/5 MFD 440V dual run capacitor designed for demanding HVACR applications. This round dual run capacitor features a heavy-duty aluminum construction with a non-PCB, oil-filled dielectric for efficient heat dissipation and consistent electrical performance. Rated for 440VAC, this component serves as a direct replacement for systems requiring 80+5 microfarad 440Vac or 370VAC ratings, providing contractors with a versatile solution for dual-motor startups in residential and commercial condenser units. To ensure technician safety and system integrity, the unit includes an integrated pressure-sensitive interrupter (PSI) designed to disconnect the capacitor in the event of internal failure, preventing casing rupture. Built to meet EIA-456-A industry standards for 60,000 hours of operational life, this 80/5 dual capacitor handles the startup load for both the compressor and fan motor simultaneously, maintaining the specific phase angle required for peak motor efficiency and reduced winding heat.
Key Benefits:- Dual-Section Versatility: Simultaneously supports an 80 MFD compressor load and a 5 MFD fan motor, simplifying inventory with a dual-voltage 370/440V compatibility.
- High Temperature Profile: Engineered to operate reliably in ambient temperatures ranging from -40°C to +70°C, essential for rooftop and sun-exposed condenser housings.
- Physical Durability: Features standard 1/4 inch quick-connect terminals and a compact round metal case for secure mounting in standard HVAC capacitor brackets.
- Safety Compliance: UL and CUL recognized with a 10,000 AFC safety rating, meeting rigorous AEC-Q200 and EIA guidelines for mechanical reliability.
Can I use a 440V capacitor if the old one was 370V?
Yes. You can always upgrade to a higher voltage rating like this 440VAC unit, as it provides a greater safety margin against voltage spikes. You should never downsize to a lower voltage than the original specification.
What do the HERM, FAN, and C terminals represent?
The "HERM" terminal connects to the hermetic compressor's start winding, "FAN" connects to the condenser fan motor, and "C" acts as the common line for the circuit. Always verify wire positions before disconnecting the old unit.
How do I know if my 80/5 dual capacitor has failed?
Common indicators include a bulging or "domed" top, oil leakage around the terminals, or a humming motor that fails to start. For accuracy, test with a multimeter to ensure the capacitance is within ±5% of the 80/5 MFD rating.
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.
