Overload Protection Thermal Relay 1.protection againest phase imbalance 2.choice of satrting class

1. Application

                 FDR1-F thermal overload relays are designed for use with contactors  from FDC1-F115 to FDC1-F330. In addition to the protection provided by modular thermal overload relays FDR2, they offer the following special features:      Protection against phase imbalance.                                                    Choice of starting class.                                                                    Protection of unbalanced circuits.                                                      Protection of single-phase circuits.                                           

2.Performance curve

    

3.  Order Code