GE RELAY – IC2820D300 GENERAL ELECTRIC FIELD LOSS RELAYS
WHERE TO USE
Use to protect dc shunt or compoundwound motors against loss of field excitation. The coil of this GR relay is connected in series with the motor field. When excitation is lost, the relay drops out and opens the motor line contactor.
Select relay so that continuous rating will not be exceeded by the rated field current and the relay calibration range permits pick-up to be set below minimum field current. Relay will not protect against overspeed due to weak field unless the field current decreases below the relay dropout setting.
For more information on these relays, please click here, to view page 22 in section 5 of the GE Industrial Control Rainbow Catalog for application information, dimensions, outline drawings and how to order.