TECHNICAL SPECIFICATIONS – 4-pole RCCB, rated current 40A, residual current 30mA, Type B protection, operating voltage 400V AC, DIN rail mounting, 10ms delay, surge current 3kA, electrical endurance 10,000 cycles, mechanical endurance 20,000 cycles. TYPE B EARTH FAULT PROTECTION – Detects AC, pulsating DC and smooth DC fault currents, making it suitable for inverters, drives and non-linear circuits. High immunity design with 10ms delay helps reduce nuisance tripping and improves system availability. DIN RAIL INSTALLATION DESIGN – Compact 4-pole RCCB mounts on standard DIN rails in distribution boards and switchboards. Screw terminals with failsafe bi-directional cylinder-lift design allow secure wiring and reliable long-term performance. RELIABLE SAFETY PERFORMANCE – Provides protection for people, installations and fire prevention against earth leakage faults. Built for commercial and industrial systems requiring dependable residual current protection in demanding electrical applications. ABB PROTECTA PLUS SYSTEM – Part of the ABB Protecta Plus modular distribution system for indoor installations, offering high internal accessibility, removable internal modules for simplified wiring, insulated neutral and earth bars, and an expandable cabinet concept for flexible electrical distribution solutions.