D3 direct current relay

The type D-3 relay is suitable for applications where overload, underload, or reverse-current protection is required on direct current circuits. One particular application is in the protection of rotary converters which require sensitive reverse-current relays to prevent running inverted.

In the usual application of the D-3 relay the moving coil is connected to a shunt in the circuit being protected. By suitable selection of relay calibration and of shunt rating, the relay can be made to respond to particular magnitudes or directions of current flow through the shunt as required.

Why ABB?

  • Long production life, ease of application and reliable protection
  • High quality design
  • 12 year warranty
  • Short lead times
  • Consistent on-time delivery
  • 24/7 customer support

Are you looking for support or purchase information?

Loading documents

Related offering

Select region / language