ABB UXAB727131R103 Molded Case Circuit Breaker

ABB UXAB727131R103 is a molded case circuit breaker (MCCB) from ABB, identified by the 727131R103 portion of its part number and designed for three‑phase protection in electrical distribution panels. The unit is configured as a 3‑pole device with a 20‑ampere rating, intended to guard branch circuits against overloads and short circuits while enabling safe interruption of fault currents in three‑phase networks. As part of ABB’s UXAB series, this MCCB is designed for compact protection in industrial and commercial power systems, helping maintain power quality and equipment safety in panel boards, control cabinets, and similar assemblies. The specific UXAB727131R103 designation denotes a particular ABB protective device suitable for configurations requiring dependable overcurrent protection of 3‑phase loads, with installation typically performed in compatible ABB panels or busbar systems that share the same mounting and terminations conventions.