Description

The ABB F204A-63/0.03 is a 4-pole Type A residual current circuit breaker rated at 63 A with a 30 mA residual current sensitivity, providing comprehensive earth leakage protection for three-phase circuits with higher load demands. The 63 A rating makes this device suitable as a main RCCB for three-phase distribution boards in commercial premises, light industrial units, and agricultural buildings with substantial connected loads. The Type A classification ensures effective detection of both AC sinusoidal and pulsating DC residual currents, important for modern installations with inverter-driven equipment, LED lighting systems, and electronic power supplies.

The F204A-63/0.03 is built to comply with IEC 61008-1 and EN 61008-1 and is designed for standard 4-pole DIN rail installation in consumer units, switchboards, and distribution boards. The 4-pole configuration ensures all phases and the neutral conductor are opened simultaneously upon fault detection, satisfying the isolation requirements of TN-S three-phase distribution systems and complying with modern wiring regulations for three-phase supply disconnection. The 30 mA sensitivity threshold provides personal protection against earth fault touch voltages.

As a member of ABB’s System pro M compact product family, the F204A-63/0.03 is compatible with ABB’s range of modular protection devices, enabling the construction of comprehensive, co-ordinated protection assemblies within standard DIN rail enclosures. It is widely specified by electrical installers and panel builders for three-phase distribution boards, motor control panels, commercial electrical systems, and agricultural supply installations where both personal protection and compliance with Type A residual current requirements are necessary.