1SYF202015R2400

The ABB 1SYF202015R2400 (FB202 AC-40/0.1) 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 an upstream fire-protection and sub-main fault protection device, preventing persistent insulation faults from developing into fire hazards. Built in compliance with IEC 61008 and IS 12640-1 standards, it is widely utilized in residential, commercial, and light-industrial electrical distribution systems.