Schneider Electric ARP083 Circuit Breaker Rating Plug

Schneider Electric ARP083 Rating Plug is an interchangeable rating accessory for Micrologic-series solid-state trip units in Square D molded-case circuit breakers. It derates the breaker’s maximum amperage to 83% of the frame rating (0.833 multiplier), enabling safe, tailored protection for continuous-load applications without replacing the trip unit. Compatible with MicroLogic Series B trip units, the ARP083 supports a broad range of frame families, including LX, LXP, LXL, LXF, LE, LEP, LEL, LEF, MX, MXP, MXL, MXF, ME, MEP, MEL, MEF, NX, NXL, NXP, NXF, NE, NEL, NEP, NEF, PX, PXF, PXL, PXP, PE, PEL, PEP, PEF, SED, SEHD, SEF, and SEHF. Use of this rating plug allows precise derating to meet design and code requirements while preserving the original breaker’s trip characteristics, making it suitable for industrial control panels and equipment installations where continuous-load current must be constrained to a fixed fraction of the breaker’s frame rating while maintaining the solid-state protection features of the MicroLogic trip unit.