Hartland Controls CAP-12.5/440 Run Capacitor

The Hartland Controls CAP-12.5/440 is a heavy-duty 12.5 MFD 440V oval run capacitor designed for continuous duty in demanding HVACR applications. Built to handle the voltage spikes of modern high-efficiency systems, this 12.5 microfarad motor run capacitor is rated for both 370V and 440V circuits, providing a robust overhead for condenser fan motors and furnace blower motors. As a veterans’ choice for field reliability, it features a metallized polypropylene film dielectric housed in a rugged, oil-filled aluminum case to optimize heat dissipation and internal pressure protection. This unit is the direct technical replacement for OEM part numbers 71533733, 70005333, and 76734300. When replacing a failed HVAC start-up component, ensure the microfarad (uF) rating matches the motor nameplate exactly; the higher 440VAC rating of this oval run capacitor ensures it exceeds the dielectric strength of standard 370V alternatives without affecting the motor's native performance characteristics.

• Dual Voltage Compatibility: Rated for 440VAC, making it a safer, higher-threshold replacement for 370V systems.
• OEM Cross-Reference: Matches technical specifications for 71533733, 70005333, and 76734300 for a drop-in HVAC part replacement.
• Standardized Terminals: Equipped with quad-blade quick-connect terminals to ensure fast, secure wiring for the capacitor common and HERM/Fan leads.
• Thermal Stability: Engineered to operate within a temperature range of -40°C to +85°C, preventing capacitance drift during high-load summer cycles.

Can I use a 440V capacitor if my old one was 370V?
Yes. In the HVACR trade, you can always increase the voltage rating of a run capacitor as it represents the insulation\'s maximum threshold, not the operating voltage. However, never install a lower-voltage capacitor than what is specified.

Is 12.5 uF the same as 12.5 MFD?
Yes, uF and MFD are interchangeable industry abbreviations for microfarads. This 12.5 MFD capacitor provides the precise phase shift required for your motor's secondary winding.

Why is the shape of the capacitor important?
Maintaining an oval run capacitor profile like the CAP-12.5/440 is critical when working within tight condenser motor housings or bracket assemblies where a round alternative may not fit.

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.