Overview
Manuals
Excitation Supply
Input Monitoring
Service Checks
Features:
- Wide DC input acceptance covers the documented 82 to 312 V DC operating range for the V2 supply variant.
- Two isolated output functions provide 240 V DC auxiliary power and a protected 24 V DC contact-interrogation supply.
- FAIL signalling and separate AC ON/DC ON indicators support rapid checks of the incoming supply state.
The ABB HIEE305120R2, type UNS 0868a V2, is a UNITROL F power supply unit for 110 to 250 V DC systems. It provides an isolated 240 V DC auxiliary output, a short-circuit-proof 24 V DC contact-interrogation supply and input-status monitoring for excitation-system hardware.
Source reference: ABB UNITROL F Series Hardware Description 3BHS102402 E83 and ABB UNITROL F technical data.
Exact-item verification and sourcing support are available for HIEE305120R2.
ABB HIEE305120R2 official documentation and verified product resources, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The V2 variant accepts 110/250 V DC nominal input or 170 V AC nominal input. The documented operating windows are 82–312 V DC and 127–213 V AC; the installed source must be checked before energization.
The unit supervises its incoming AC/DC supply and reports a FAIL state. Separate AC ON and DC ON indicators help distinguish the active source during commissioning and fault tracing.
Before replacement, match both HIEE305120R2 and UNS 0868a V2, photograph the removable terminal blocks, record all conductors and confirm that the 240 V DC and 24 V DC loads remain inside the manufacturer limits.
