Pro-source PS-STFJ-20-C Capacitor 2-speed Msc 37659935

Product Description

The PRO-SOURCE PS-STFJ-20-C is a replacement capacitor designed to support motor start and run functions in compatible equipment. Capacitors store and release electrical energy to assist motor windings during startup and steady-state operation. This unit is a two-speed accessory-type capacitor finished in black. It is a compact component suited for installation by HVAC technicians or qualified electricians performing motor or blower assembly service on applicable equipment.

This capacitor is specified for use with MSC 37659935. It is intended as a direct replacement component in applications where a two-speed capacitor of this form factor is required. The compact dimensions make it suitable for installations where space inside an equipment cabinet is limited. Typical use cases include residential or light commercial HVAC motor replacement and repair scenarios.

Key Features

• Two-speed capacitor configuration for compatible motor applications
• Compact form factor at 1.2 x 1.6 x 1.2 inches
• Black finish for component identification
• Lightweight at 0.5 pounds for easy handling during installation
• Sold individually as a single-unit replacement part

Compatibility

Designed for use with MSC 37659935. Verify system requirements and existing capacitor specifications before installation to confirm fitment.

Installation Notes

Capacitor replacement should be performed by a licensed HVAC technician or qualified electrician. Always disconnect and lock out power to the equipment before handling capacitors, as they can retain a dangerous electrical charge even after power is removed — discharge the capacitor safely using an approved discharge tool or resistor before touching terminals. Verify that the replacement capacitor ratings match the original component specifications before connecting. Follow applicable NEC guidelines and local electrical codes during installation.