Avoid motor damage and costly shutdowns by ensuring the orderly transfer of the sources to your motors.
Our complete Motor Bus Transfer System and relays properly execute the transfer of your critical motor loads.

• Provides Automatic and Manual transfers of motor bus systems 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 and Automatic transfers
• Can be expanded to accommodate multiple breaker configurations
• Multiple setpoint profiles for various application requirements
• Integrated control, supervisory functions, sequence of events, and oscillograph recording in one device
• Extensive commissioning tools, including ringdown analysis
• Optional M-3919A Graphic Display Unit (GDU) and Touch Screen Human Machine Interface (HMI) for communicating with one or two M-4272 units
• Optional M-5072 Retrofit Kit for M-4272 Replacement of M-0272/M-0236B Analog Transfer Logic Controller