SCR system parts for Ross Hill and NOV drilling rigs, control modules, DC modules, SCR bay components, and rig power. Obsolete and hard-to-find, sourced and cross-referenced.
Ross Hill Controls (and the Hill Hayes SCR designs that came before, now part of NOV) ran the power on a generation of drilling rigs, feeding the SCR drives that turn the drawworks, mud pumps, and top drive. Those systems are still in the field, and the modules that control them are increasingly hard to find. That's exactly where we work.
Send a part number and we'll tell you what we can locate, new old stock, surplus, or a cross-referenced equivalent.
| OEM / Common P/N | EI Reference | Type | Description |
|---|---|---|---|
| 0521-2500-14 | EI-0521-2500-14 | AC | Ross Hill / NOV AC Control Module (SCR) |
| 521250000 | EI-521250000 | AC | AC Control Module, SCR drilling control |
| 0522-2400-23 | EI-0522-2400-23 | DC | Ross Hill / NOV DC Control Module |
| 0522-2400-21 | EI-0522-2400-21 | DC | DC Module, cross-references to NOV 6415-2400-21 |
| 6702ED584 | EI-6702ED584 | Component | Eaton / Cutler-Hammer contactor used in Ross Hill SCR systems |
Numbers shown for reference and cross-reference. Verify the exact part and revision against the nameplate before we quote. NOV largely carried Ross Hill numbering forward; certain DC modules use distinct NOV 6415- numbers. See the full Ross Hill / NOV cross-reference.
We'll tell you what we can find and how fast.