Schneider Electric M9R81425 GFEP Molded Case Circuit Breaker

Use the 25A rated current when evaluating circuit loading and conductor sizing requirements. Its 50/60Hz rating supports selection for circuits operating at either frequency.

At 240VAC, the interrupting rating is 10kAIC. Compare that rating with the available fault current at the installation point, which must not exceed the interrupting rating.

This is a four-pole device rated for three-phase service. Use the pole count when planning the conductors that must pass through the device, rather than treating it as a three-pole breaker.

Ground-fault equipment protection, or GFEP, detects ground-fault leakage to help protect equipment. Select this protection feature when the circuit design requires equipment ground-fault protection.

Magnetic-only tripping uses a magnetic mechanism rather than a thermal element to respond to current. Choose this trip type when the circuit's protection design calls for magnetic-only operation.

The device mounts on DIN rail and measures 3.20 in high, 2.80 in wide and 2.40 in deep. Use these dimensions to plan its physical footprint, while allowing separate space for conductor routing and termination access.

The tunnel terminals accept wire sizes from 18 AWG through 2 AWG. Select conductors within that range and size them for the circuit's load and applicable installation requirements.

Tighten the terminals to 31.0 lb-in using a torque tool. Controlled tightening helps maintain a secure electrical connection without under-tightening or over-tightening.

The operating temperature range is -25 to 60 °C. Evaluate the temperature where the device will operate, including heat within the enclosure, to keep operation within that range.

The 480Y/277VAC rating applies to a wye system, while 415VAC is the other rated voltage. Use the circuit voltage and system configuration to select the appropriate rating.