2-pole Residual Current Circuit Breaker in Pakistan BR6756 Description 2 Pole RCCB : It is used in the case of a single-phase supply that involves only a live and neutral wire. ... It contains two ends where the live and neutral wires are connected. A Rotary switch is used to switch the RCCB back to ON or OFF positions. A test button helps to periodically test the RCCB functionality. Specifications: Electrical characteristics 2-pole Current 100 A Package Includes: 1 x 2-pole Residual Current Circuit Breaker