The M9R81263 is a 2‑pole residual current circuit breaker (RCCB) from Schneider Electric’s Multi9 GFP range, tailored for original equipment manufacturers (OEMs) and panel builders in industrial and tertiary buildings. Rated at 63 A with a sensitivity of 30 mA (26 mA per UL 1053) and featuring an instantaneous Type A‑SI (Super Immunised) protection class, this device provides robust protection against electric shock from direct contact and mitigates fire risks in electrical installations. The A‑SI classification ensures superior immunity to nuisance tripping caused by transient disturbances, lightning surges, and electrical noise, making it particularly suitable for demanding industrial environments. A red mechanical status indicator on the front panel clearly signals a fault trip, simplifying troubleshooting and reducing downtime. The RCCB is compliant with both IEC/EN 61008‑1 and UL 1053 standards, offering a rated breaking and making capacity (Im/IΔm) of 1500 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 reliable operation even in degraded supply conditions. The device mounts on a standard DIN rail, occupies 4 modular pitches (36 mm width), and offers IP20 protection at the terminals, becoming IP40 when enclosed in a modular cabinet. With an operating temperature range from -25 °C to +60 °C and a mechanical endurance of 20,000 cycles, this RCCB is built for longevity and reliability. Environmentally, it carries Green Premium compliance with RoHS (by exemption) and REACh, while its total lifecycle carbon footprint is quantified at 51 kg CO₂ eq. and its recyclability potential is 59%.
