The M9R81225 is a 2‑pole residual current circuit breaker (RCCB) from Schneider Electric’s Multi9 GFP range, purpose‑built for original equipment manufacturers (OEMs) and panel builders serving industrial and tertiary building sectors. Rated at 25 A with a nominal sensitivity of 30 mA (26 mA per UL 1053) and an instantaneous Type A‑SI (Super Immunised) protection class, this device provides reliable protection against electric shock from direct contact and reduces fire risks in electrical installations. The A‑SI classification ensures enhanced immunity to nuisance tripping caused by transient disturbances, lightning surges, and electrical noise – a critical feature for electrically noisy industrial environments. A red mechanical status indicator on the front panel provides clear visual confirmation of fault trips, simplifying troubleshooting and minimising downtime. The RCCB complies with both IEC/EN 61008‑1 and UL 1053 standards, offering a rated breaking and making capacity (Im/IΔm) of 1,500 A and a conditional rated short‑circuit current (Inc/IΔc) of 10 kA with a 100 A gG fuse. Its voltage‑independent tripping technology ensures dependable operation even under degraded supply conditions. The device mounts on a standard DIN rail, occupies 4 modular pitches (36 mm width), and provides IP20 protection at the terminals, becoming IP40 when enclosed in a modular cabinet. With a wide operating temperature range from -25 °C to +60 °C and a mechanical endurance of 20,000 cycles, this RCCB is engineered for long‑term reliability. Environmentally, it carries Green Premium compliance with RoHS (by exemption) and REACh, a total lifecycle carbon footprint of 18 kg CO₂ eq., and a recyclability potential of 59%.
