ZB12-4 Eaton Overload Relay

The Moeller ZB12-4 is a thermal overload relay designed to protect industrial motors over an adjustable 2.4–4A current range. Its 3P configuration supports three-phase motor protection requirements, while the adjustable range allows the relay to be set according to applicable motor current. For control circuit integration, the unit includes one normally open and one normally closed auxiliary contact. Protection against short circuits up to 600 VAC can be provided by a 15A fuse or a 25A circuit breaker. The ZB12-4 carries UL, CSA, and IEC certifications for use in industrial motor protection applications.