Basler BE1-87B High Impedance Bus Differential Relay High Impedance Bus Differential Relay

 Proven performance of High Impedance Differential for optimum speed and selectivity.

Available in single phase or three phase configurations to allow space and cost benefits.

 Fully drawout, testable in case design, compatible with existing panel mount configurations

CT Circuit Diagnostic function and Steady State Unbalance alarm to verify external wiring and prevent misoperation. 

Includes an intentional 20msec delay timer that can be inserted in the trip logic to aid in coordination when the bus is tapped with high speed fuses.