Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 1X00024H01 |
| Alternate Model | WH1-2FF |
| Manufacturer | Emerson / Westinghouse Process Control |
| System | Ovation DCS |
| Product Type | AC Power Supply Module |
| Input Voltage | 115/230 VAC nominal |
| Input Range | 85–264 Vrms |
| Input Frequency | 47–63 Hz |
| Main Output | 24 VDC, 300 W |
| Auxiliary Output | 24 VDC, 200 W |
| Output Configuration | Dual output: single main + single auxiliary |
| Mounting | Ovation cabinet / DIN-rail power-supply architecture |
| Certification Reference | UL1950 recognized component; applicable to Ovation CE Mark systems |
The Ovation system documentation identifies 1X00024H01 as an AC power-supply module using 115/230 VAC input, with an operating input range of 85–264 Vrms and 47–63 Hz. Its output arrangement is 300 W at 24 V for the main supply plus 200 W at 24 V for the auxiliary supply.
The auxiliary output includes an isolation diode in series with the internal auxiliary supply. The documentation also states that 1X00024H01 supersedes 4D33900G13 and 4D33900G19 for new applications and replacements.
Product Introduction
The Emerson 1X00024H01 is an Ovation AC power-supply module used to distribute DC power within an Ovation control system. It is also identified as the WH1-2FF configuration. Unlike an Ovation controller or I/O module, this unit is cabinet infrastructure, supplying the DC power required by control electronics, I/O assemblies, and selected field circuits.
Its defining feature is the dual-output arrangement: a 300 W / 24 V main output and a 200 W / 24 V auxiliary output. The distinction matters during replacement because the auxiliary circuit is intended for field loads such as analog-input current loops and relay coils, while the main supply can support controllers and I/O.
1X00024H01
Application Scenarios & Field Pitfalls
Engineering Pain Point
Power-supply replacement in a legacy Ovation cabinet is not simply a matter of matching “24 VDC.” The 1X00024H01 has a specific AC input range and main/auxiliary output architecture. A replacement with the same nominal DC voltage but a different output arrangement can require cabinet rewiring or create an incorrect load distribution.
Typical Applications
- Power-generation control cabinets: supplying Ovation controllers and I/O assemblies.
- Boiler and turbine auxiliary systems: providing DC power for control electronics and instrumentation.
- Process instrumentation: supplying 24 V field loops and relay coils through the auxiliary output.
- Legacy Ovation modernization: maintaining existing cabinets where the original power-supply architecture must remain intact.
Technical Pitfalls to Avoid
- Do not confuse the main and auxiliary outputs. The documented H01 configuration is 300 W / 24 V main plus 200 W / 24 V auxiliary.
- Do not substitute by voltage alone. The AC input range, output arrangement, cabinet wiring, and connected load all need to match.
- Check the exact part number before accepting a replacement. The closely related 1X00024H03 is also an AC-input module but provides a single 200 W / 48 V auxiliary output and no main output.
Related Products
- 1X00416H01 — Later Ovation AC power-supply family member associated with the H01 replacement path; verify the cabinet documentation before treating it as a direct field swap.
- 1X00024H03 — AC-input auxiliary supply with 200 W / 48 V output; not functionally equivalent to H01.
- 1X00024H04 — DC-input member of the 1X00024 family; intended for DC input rather than the H01 AC-input architecture.
- 1X00024H06 — Another DC-input Ovation power-supply variant; output configuration differs from H01.
- 4D33900G13 — Previous power-supply designation superseded by 1X00024H01.
- 4D33900G19 — Another predecessor explicitly identified for replacement by 1X00024H01.
- 4D33900G15 — Predecessor associated with the 1X00024H03 configuration rather than H01.
Procurement Check
For a 1X00024H01 replacement, verify 1X00024H01 / WH1-2FF, the AC input requirement, and the 300 W main + 200 W auxiliary 24 V output configuration against the cabinet drawings. The strongest available Ovation documentation confirms that H01 superseded 4D33900G13 and 4D33900G19, making those useful cross-reference numbers when inspecting older equipment records.
