Description
Product Introduction
ABB HBFFAEAGNDC6ACB11G is a REF615 feeder protection relay for MV feeder protection, control, measurement, and supervision in utility and industrial networks. In practice, this unit fits radial, looped, and meshed distribution systems.
From a procurement view, this one matters because it supports sensor or conventional instrument transformer inputs, IEC 61850 Ed. 1/2, and Modbus/DNP3 communications. The relay comes in a withdrawable plug-in design, which cuts swap time in the panel. Well, technically that helps maintenance speed; it does not remove the need to confirm firmware and application settings first.
Installation & Configuration Guide
Phase 1—Pre-Installation (est. 10 min)
- De-energize the bay.
- Wait 5 min for discharge.
- Export the existing relay program.
- Photograph DIP switches, wiring, and rack layout.
- Tools: Fluke 115 multimeter, ESD wrist strap, torque driver, label tags.
Phase 2—Removal (est. 5 min)
- Label wires before disconnecting.
- Release the latch.
- Pull the unit straight out.
- Inspect backplane pins for bent contacts, oxidation, or heat marks.
Phase 3—Installation (est. 10 min)
- Put ESD protection on first.
- Verify the exact part number.
- Replicate jumper and terminal settings from photos.
- Seat the module until the latch clicks.
- Reconnect wiring at about 0.5 N·m.
- Check shield grounding against the wiring diagram.





