The M9R44225 is a 2‑pole residual current circuit breaker (RCCB) from Schneider Electric’s Multi 9 range, specifically designed for OEMs and panel builders in industrial and tertiary buildings. Rated at 25 A with a high sensitivity of 260 mA and featuring an A‑SI (Super Immunised) type protection, this device delivers reliable protection against electric shock from direct contact and mitigates fire risks in electrical installations. The A‑SI classification ensures enhanced immunity to nuisance tripping caused by transient disturbances, lightning surges, and electrical noise, making it particularly suitable for demanding industrial environments. It is compliant with IEC/EN 61008‑1 and offers a conditional rated short‑circuit current (Inc/IΔc) of 10 kA. The device incorporates a red mechanical status indicator on the front panel that clearly signals a fault trip, simplifying troubleshooting and reducing downtime. With a compact 36 mm width (4 modular pitches) and DIN‑rail mounting, it optimises panel space. The tunnel‑type terminals accept conductors up to 35 mm² (rigid) and 25 mm² (flexible) with a 3.5 N·m tightening torque. It offers IP20 protection at the terminals and IP40 when enclosed, with a wide operating temperature range from -25 °C to +60 °C. Built with PVC‑free materials, the device carries Green Premium compliance, and its recyclability potential is rated at 54%. Although it contains halogen above thresholds, the product is RoHS compliant by exemption and features a total lifecycle carbon footprint of 15 kg CO₂ eq.
