The Allstar 005120 is a motor start capacitor rated at 67–76 MFD and 250 VAC for 1/2 HP single-phase AC motors commonly found in residential and light commercial door and gate operators. It provides the surge of reactive power needed to overcome initial inertia, helping the motor start quickly and smoothly. Use it as a direct replacement when a door or gate operator motor hums, stalls, or struggles to start, provided the equipment specifies a 67–76 microfarad, 250-volt start capacitor.
This replacement start capacitor is intended for AC motor-start duty and is non-polarized for use on alternating current circuits. Verify that the microfarad range and voltage rating match the operator’s specifications; do not substitute a lower voltage rating. Compatible with Allstar operators and other single-phase motors that call for a 67–76 MFD, 250 VAC start capacitor for 1/2 HP applications. Installation should follow the equipment’s wiring diagram, with power disconnected and the old capacitor safely discharged; professional service is recommended if you are unsure of the connections. This component supports reliable motor starting performance in garage door openers, gate operators, and similar equipment where the specified rating is required.