ABB F204B-125/0,3L 4P 125A 300mA Type B Selective RCCB 2CSF204523R3950

With a rated residual operating current of 300 mA and selective tripping, the ABB F204B-125/0,3L provides dependable protection against earth leakage faults in demanding installations.

Overview

The ABB F204B-125/0,3L is a four-pole residual current circuit breaker (RCCB) with a rated current of 125 A and a rated residual operating current of 300 mA. It is designed for DIN rail mounting and occupies 4 modules of width.

What stands out

• Type B residual current protection: detects AC, pulsating DC, and smooth DC residual currents.
• Selective (time-delayed) tripping characteristic for discrimination with downstream devices.
• High rated current of 125 A suitable for main distribution boards.
• Short-circuit breaking capacity of 10 kA.
• Wide operating temperature range from -25°C to +60°C.

Technical details

• Number of poles: 4P
• Rated current (In): 125 A
• Rated residual operating current (IΔn): 300 mA
• Residual current type: Type B
• Tripping characteristic: Selective (time-delayed)
• Rated voltage (Ue): 230/400 V AC
• Rated frequency: 50/60 Hz
• Short-circuit breaking capacity (Icn): 10 kA
• Mounting type: DIN rail
• Module width: 4 modules
• Terminal type: Screw terminals
• Terminal capacity: 25-50 mm²
• Degree of protection: IP20 (terminals), IP40 (enclosure)
• Operating temperature range: -25 to +60 °C
• Electrical endurance: 10000 cycles
• Mechanical endurance: 20000 cycles
• Standards: IEC/EN 61008

Our verdict

A robust Type B RCCB for industrial and commercial applications where high current ratings and selective coordination are required.