Packard PMJ130 Start Capacitor

When you're out in the field and a compressor is struggling to kick over, you need a high-torque solution like the Packard PMJ130 Start Capacitor. This 130-156 MFD start capacitor is specifically designed for intermittent duty in AC motor starting circuits, providing the necessary phase shift to get equipment up to speed under heavy load. Rated for 110-125V, it features a rugged, non-polarized electrolytic design housed in a moisture and oil-resistant phenolic resin case, ensuring it handles the harsh environments common in HVACR applications. Professionals choose the PMJ130 for its reliability in 50/60Hz systems, offering a 3-second start rating and a duty cycle capable of up to 20 starts per hour. With a standard 1-7/16" diameter and 2-3/4" height, it serves as a direct drop-in for Packard motor start capacitors and common equivalents like the Armstrong BC130-125V or Supco CS130-156X110. For any technician, keeping a round 125V start capacitor in the van is standard practice for quick, effective service calls.

• Durable Construction: The molded phenolic resin case protects internal electrolytic components from oil and moisture ingress.
• Broad Compatibility: Replaces common industry standard capacitors in the 130-156 MFD range across various residential and light commercial equipment.
• Reliable Performance: Rated for an operating temperature range of -40°C to 65°C (-40°F to 149°F) to withstand extreme mechanical room conditions.
• Easy Installation: Features standard 1/4" dual blade terminals for quick wiring on the job site.

What is the difference between a start and run capacitor?
A start capacitor, like the PMJ130, is designed only for the initial start-up torque of the motor. It must be cycled out of the circuit via a centrifugal switch or potential relay once the motor reaches roughly 75% of its rated speed. Unlike run capacitors, these are not designed for continuous operation.

Can I use a higher MFD rating?
Field experience suggests staying within 10% of the manufacturer’s specified capacitance. The 130-156 microfarad range of this unit is precise for specific fractional horsepower motor requirements.

Is the voltage rating critical?
Yes. You can always use a capacitor with a higher voltage rating than the original (e.g., replacing a 110V with a 125V), but you must never install a capacitor with a lower voltage rating than what the circuit requires.

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.