Square D GV3P80 Motor Circuit Protector

This 80A motor circuit protector uses thermal-magnetic protection. Its adjustable thermal trip responds to sustained overloads, while its fixed magnetic trip responds to high fault currents. Use the current rating and trip characteristics when selecting motor-circuit protection.

The magnetic trip is fixed at 1120A on an AC basis; only the thermal trip is adjustable. Compare the motor's starting-current characteristics with that fixed magnetic trip value when selecting protection.

The voltage rating is 690VAC, with an interrupting rating of 6kAIC at 690VAC. For that voltage, select it where the available fault current does not exceed its interrupting capacity.

Current-limiting construction reduces the fault current let through during a short circuit. This helps reduce thermal and mechanical stress on conductors and equipment during the fault.

The protector has three poles for a three-phase circuit, giving each phase conductor its own pole through the device. Use its three-phase configuration when planning the motor-circuit conductor arrangement.

Tighten the Everlink terminal connections to 44.3lb-in (5N.m). Use a torque tool to achieve the required tightening torque rather than judging tightness by feel.

It mounts on DIN rail and measures 5.2 in high, 2.2 in wide and 5.4 in deep. Use these dimensions to plan the device layout and routing space around the terminals.

The operating temperature range is -20 to 60°C. Evaluate the temperature at the device's installation location, including heat generated by nearby equipment, against that range.