A residual current circuit breaker with overcurrent protection (RCBO) is a combination residual current device (RCD) and circuit breaker (CB), also known as RCBO Combo or RCD/MCB Combination.

Single Phase 1 Module 1P+N RCBO

Three Phase 4 Module 3P+N RCBO

Three phase RCBO RCD MCB combination 4 module wide
Compact solution for three phase installations in DIN rail enclosures

RCBO Combo

Single Phase 1 Module 1P+N RCBO

Three Phase 4 Module 3P+N RCBO

RCBO RCD/MCB Slim Combination 18mm 1 Module Double Pole 1P+N C-Curve Type AC & A 4.5Ka