Tecumseh p82968 Potential Relay Mars 68 Equivalent

Product Description

The TECUMSEH p82968 is a potential relay used in single-phase hermetic compressor motor starting circuits. Potential relays sense the back-EMF generated by the start winding as the motor accelerates, then drop out the start capacitor once the motor reaches operating speed. This controlled switching protects the start capacitor from continuous duty and ensures a clean, repeatable start sequence. The p82968 is installed by HVAC and refrigeration technicians during compressor service or motor starting component replacement.

This relay is suited for residential and light commercial refrigeration and air conditioning applications where single-phase hermetic compressors require external start-assist components. It is cited as equivalent to the Mars 68 potential relay, making it a recognized cross-reference for technicians sourcing replacement starting components in the field.

Key Features

• Potential relay design for hermetic compressor start-winding circuits
• Drops start capacitor out of circuit once motor reaches operating speed
• Cited as equivalent to Mars 68 potential relay
• Suitable for residential and light commercial refrigeration and AC systems

Compatibility

Equivalent to the Mars 68 potential relay. Designed as an OEM-style replacement starting relay for single-phase hermetic compressor motor starting circuits. Confirm coil pickup and dropout voltage specifications match the compressor motor nameplate before installation.

Installation Notes

Potential relays are installed by qualified HVAC or refrigeration technicians. Disconnect and lock out all power to the unit before handling starting components. Verify the replacement relay coil voltage ratings are compatible with the existing compressor start winding before energizing the circuit. Improper relay selection can result in failed starts or damaged capacitors.

Technical Specifications

• Relay Type: Potential Relay
• Equivalent To: Mars 68

Standard Information

• Brand: TECUMSEH
• Manufacturer Part Number: p82968