Description
SIEMENS
5SN7 G4A
CIRCUIT BREAKER
220/380V~
240/415V~
The Siemens 5SN7 G4A is a circuit breaker for the marine control system, marked for 220/380V~ and 240/415V~ AC supplies. It sits in the power distribution feeding control panels, interrupting the circuit to protect connected wiring and equipment when a fault occurs. On board, it forms part of the protection layer between the vessel’s AC supply and the control equipment that depends on it. Both voltage markings appear on the unit together with the 5SN7 G4A model designation. This unit is offered in used condition.
Key Features
✓ Siemens manufacture
✓ Model 5SN7 G4A
✓ Circuit breaker type
✓ Marked 220/380V~
✓ Marked 240/415V~
Marine Applications
✓ Protection of control panel supply circuits
✓ AC distribution feeding engine room control cabinets
✓ Switchboard sections supplying automation equipment
✓ Power feed protection for alarm and monitoring panels
Technical Support
Prota Marine provides technical support, repair and onboard installation for the circuit breaker and the wider marine control system. Fault diagnosis covers tripping problems and the circuits the breaker protects, and commissioning support follows once it is fitted.
