1SYF202015R2250

The ABB 1SYF202015R2250 (FB202 AC-25/0.1) is a 2-pole Residual Current Circuit Breaker (RCCB) from the FB200 series, engineered to safeguard electrical installations and equipment against earth fault currents. With a $100text{ mA}$ residual operating sensitivity, it functions effectively as a fire protection and sub-main fault protection device, preventing persistent insulation faults from turning into fire hazards. Built in compliance with IEC 61008 and IS 12640-1 standards, it is widely used in residential, commercial, and light-industrial electrical distribution switchboards.