MARS 12748 Run Capacitor
This MARS 12748 Run Capacitor is a standard-specific, professional-grade component designed for continuous-duty operation in high-demand HVACR systems. Rated at 45 MFD 440Vac, this round run capacitor serves as a direct replacement for 45 microfarad applications requiring stable capacitance and thermal resilience. Constructed in a non-PCB, oil-filled aluminum case with a built-in 1/4-inch male quick-connect quad-terminal array, it facilitates efficient field integration for condenser fan motors and compressor motors.
The MARS 12748 is dual-rated for both 370V and 440V AC applications at 50/60Hz, providing technical overhead that helps manage voltage fluctuations in commercial and residential equipment. With an operating temperature range of -40°C to +70°C, it is engineered for placement in high-heat environments like outdoor condensers. The inclusion of a patented pressure sensitive interrupter (PSI) ensures the circuit is safely disconnected if internal pressure exceeds safe thresholds, preventing catastrophic failure in the field.
Key Benefits- Designed for permanent split capacitor (PSC) motors to maintain consistent motor torque and energy efficiency.
- Universal round run capacitor geometry fits standard mounting brackets in tight service panels.
- High-grade aluminum construction with 1/4-inch male disconnects for rapid, secure wiring.
- Internal safety protection via a pressure sensitive interrupter to mitigate risks from electrical surges.
- Compatible with major brands as a high-reliability technical alternative to OEM part numbers 12248 and C445R.
- Can I use a 440V capacitor if my old one was 370V? Yes; a 440Vac rating can safely replace a 370Vac unit of the same capacitance, as it offers a higher voltage tolerance.
- Is 45 MFD the same as 45 uF? Yes; MFD and uF both represent microfarads, the standard unit for capacitance in HVAC components.
- Does it matter if my old capacitor was oval? While electrical specs must match, the physical shape (round vs. oval) only affects mounting; ensure the 2-inch diameter of this round unit fits your bracket.
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: $13.52
-65%$13.52
$4.73MARS 12748 Run Capacitor
This MARS 12748 Run Capacitor is a standard-specific, professional-grade component designed for continuous-duty operation in high-demand HVACR systems. Rated at 45 MFD 440Vac, this round run capacitor serves as a direct replacement for 45 microfarad applications requiring stable capacitance and thermal resilience. Constructed in a non-PCB, oil-filled aluminum case with a built-in 1/4-inch male quick-connect quad-terminal array, it facilitates efficient field integration for condenser fan motors and compressor motors.
The MARS 12748 is dual-rated for both 370V and 440V AC applications at 50/60Hz, providing technical overhead that helps manage voltage fluctuations in commercial and residential equipment. With an operating temperature range of -40°C to +70°C, it is engineered for placement in high-heat environments like outdoor condensers. The inclusion of a patented pressure sensitive interrupter (PSI) ensures the circuit is safely disconnected if internal pressure exceeds safe thresholds, preventing catastrophic failure in the field.
Key Benefits- Designed for permanent split capacitor (PSC) motors to maintain consistent motor torque and energy efficiency.
- Universal round run capacitor geometry fits standard mounting brackets in tight service panels.
- High-grade aluminum construction with 1/4-inch male disconnects for rapid, secure wiring.
- Internal safety protection via a pressure sensitive interrupter to mitigate risks from electrical surges.
- Compatible with major brands as a high-reliability technical alternative to OEM part numbers 12248 and C445R.
- Can I use a 440V capacitor if my old one was 370V? Yes; a 440Vac rating can safely replace a 370Vac unit of the same capacitance, as it offers a higher voltage tolerance.
- Is 45 MFD the same as 45 uF? Yes; MFD and uF both represent microfarads, the standard unit for capacitance in HVAC components.
- Does it matter if my old capacitor was oval? While electrical specs must match, the physical shape (round vs. oval) only affects mounting; ensure the 2-inch diameter of this round unit fits your bracket.
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
This MARS 12748 Run Capacitor is a standard-specific, professional-grade component designed for continuous-duty operation in high-demand HVACR systems. Rated at 45 MFD 440Vac, this round run capacitor serves as a direct replacement for 45 microfarad applications requiring stable capacitance and thermal resilience. Constructed in a non-PCB, oil-filled aluminum case with a built-in 1/4-inch male quick-connect quad-terminal array, it facilitates efficient field integration for condenser fan motors and compressor motors.
The MARS 12748 is dual-rated for both 370V and 440V AC applications at 50/60Hz, providing technical overhead that helps manage voltage fluctuations in commercial and residential equipment. With an operating temperature range of -40°C to +70°C, it is engineered for placement in high-heat environments like outdoor condensers. The inclusion of a patented pressure sensitive interrupter (PSI) ensures the circuit is safely disconnected if internal pressure exceeds safe thresholds, preventing catastrophic failure in the field.
Key Benefits- Designed for permanent split capacitor (PSC) motors to maintain consistent motor torque and energy efficiency.
- Universal round run capacitor geometry fits standard mounting brackets in tight service panels.
- High-grade aluminum construction with 1/4-inch male disconnects for rapid, secure wiring.
- Internal safety protection via a pressure sensitive interrupter to mitigate risks from electrical surges.
- Compatible with major brands as a high-reliability technical alternative to OEM part numbers 12248 and C445R.
- Can I use a 440V capacitor if my old one was 370V? Yes; a 440Vac rating can safely replace a 370Vac unit of the same capacitance, as it offers a higher voltage tolerance.
- Is 45 MFD the same as 45 uF? Yes; MFD and uF both represent microfarads, the standard unit for capacitance in HVAC components.
- Does it matter if my old capacitor was oval? While electrical specs must match, the physical shape (round vs. oval) only affects mounting; ensure the 2-inch diameter of this round unit fits your bracket.
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.
