Motor protection relay with primary contactor and auxiliary contacts, 2NO/2NC

Three-pole electro-mechanical motor protection relay with bimetallic and primary contactors for monitoring and shutting down DC or AC motors. An auxiliary switch block with 2 normally-open and 2 normally-closed switches is also included. The tripping current is adjusted by means of a current-setting dial to the nominal current of the respective motor. The motor protection relay is also sensitive to faults on individual phases. An additional test button can be used to check the functionality of the auxiliary contacts.

• ZB12-4 motor protection relay

• Primary contactor

• Auxiliary switch block with 2 NO and 2 NC contacts

• Nominal voltage 230V, 50Hz

• Adjustable tripping current: 2.4 A to 4 A

• Inputs and outputs: 4mm safety sockets

• Dimensions: 297 x 228 x 60mm

• Weight: 1.2kg