Protection of 3-phase loads e.g. cage induction motors.They monitor current flowing in 2 of the 3 lines and in the event of an overload condition the output relay will de-energise after a time delay inversely proportional to the overcurrent. The units will tolerate a wide (> 2:1) variation in supply voltage without loss of performance
0.2 - 32A FLC in one unit
Integral current transformers
Selectable starting delay for high inertia loads
Trip and alarm contacts
Supply, warning and trip indication
Auto/manual/local/remote reset
Delayed or instantaneous reset
Test facility
Product can be used for loads above 32A with use of external CT’s
Retentive trip memory version available (latching)