• Provides Automatic and Manual transfers of motor bus systems on Low

Voltage Switchgears in power plants and industrial processing plants to

ensure process continuity

• Automatically selects Fast, In-Phase, Residual Voltage, and Fixed

Time motor bus transfers, based on varying system conditions

• Applicable for one way and bi-directional Manual transfers

• Can be expanded to accommodate multiple breaker configurations

• Integrated control, supervisory functions, sequence of events, and

oscillograph recording in one device

• Extensive commissioning tools, including ringdown analysis

Control features:

• Control of two circuit breakers with two individual programmable

breaker closing times

• Three-breaker configuration can be provided by two M‑4172 devices

• Breaker status supervision

• Breaker failure monitoring