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ProTechTPS – Bulkhead Mount, HV/HV, Voted Relays (non-preferred) · ProTech TPS Safety PLC
Non-Preferred
Still supported, but Woodward has designated it non-preferred. Plan a move to the preferred model.
Ask Drake about repair / overhaul of your existing unit.
Drake-recommended replacement candidates
Direct replacement.
| Preferred item | Description | Applies when |
|---|---|---|
| 8237-2605 | ProTech TPS – Bulkhead Mount, HV/HV, Voted Relays (current Preferred part number) | For new installations; same mount/voltage/relay configuration. The Non-Preferred PN remains available for spares and existing installations. |
| 8929-037 | ProTech-TPS Field Software Conversion Kit | Software upgrade of an existing installed unit to the current version; the source states these units can be upgraded using the 8929-037 software update kit. |
Note: Non-preferred model NOT declared obsolete or discontinued. Woodward commits to supporting non-preferred models for 20 years after inactivation; no inactivation date is given in this PCN. Preferred 8237-2605 is recommended for new applications only; older units can optionally be upgraded via Field Software Conversion Kit 8929-037 or factory conversion. Rev H (Dec 2024) lists these as Non-Preferred as of June 2018.
Lifecycle facts
| Woodward part number | 8237-1605 |
|---|---|
| Product family | ProTech TPS Safety PLC |
| Lifecycle status | Non-Preferred |
| Source | manual 35059v1; manual 35059v2; kit 8929-037; ProTech-GII TPS MSM Support Statement rev H p.3 |
| Cross-reference confidence | Confirmed from the cited Woodward publication |
Source: PCN 06947
✓ Sourced directly from the cited Woodward publication — Drake confirms the exact part before quoting
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