Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Part number | 51401497-100 |
| Module designation | FW25-92 |
| Product type | Dual-node power supply |
| Hardware format | Power supply PCB assembly |
| System family | TDC 3000 / LCN |
| Node capacity | Two nodes |
| Version | Non-CE |
| Connector configuration | Older 8-pin Beau Vernitron connector, according to Honeywell replacement documentation |
| Input voltage | Verify from the original assembly label and applicable manual |
| Output voltage | Verify from the original assembly documentation |
| Output power | Not reliably confirmed |
| Power redundancy | Dual-node supply arrangement |
| Installation | Compatible LCN hardware assembly |
| Replacement reference | 51402184-100 |
| Lifecycle | Legacy part; replacement reference documented |
Important identification detail: Honeywell’s PLC Gateway installation documentation identifies 51401497-100 as an older non-CE dual-node power supply and lists 51402184-100 as its replacement. The replacement has an 8-pin Beau Vernitron connector. Do not assume the newer 3-pin IEC320 supply, 51196655-100, has the same connection arrangement.
Product Introduction
The Honeywell 51401497-100 is a dual-node power supply assembly associated with Honeywell TDC 3000 and Local Control Network hardware. Identified as FW25-92, this legacy power board supports the electrical requirements of two control nodes within its intended hardware configuration.
The part is particularly relevant to maintenance of older non-CE installations. Its connector arrangement and hardware generation must be checked carefully because Honeywell documentation identifies a later replacement part with a different connector configuration.
51401497-100
Application Scenarios & Field Pitfalls (Engineer’s Perspective)
A failure in a dual-node power assembly can affect more than one control node. Symptoms may include node startup problems, intermittent hardware operation, or loss of power to connected control equipment. Before replacing the 51401497-100, determine whether the fault originates in the power board, input supply, connector, or downstream load.
Typical application scenarios include:
- TDC 3000 control systems: Maintenance of legacy Honeywell control hardware using the original dual-node power arrangement.
- LCN installations: Power-system maintenance for compatible Local Control Network hardware assemblies.
- Industrial process facilities: Replacement of aging power supply boards in established process-control installations.
- Legacy control-room equipment: Repair and restoration of older non-CE Honeywell hardware configurations.
Field pitfalls
1. Check the connector before considering a replacement. Honeywell documentation identifies 51402184-100 as a later replacement for 51401497-100 and describes its 8-pin Beau Vernitron connector. The 51196655-100 version uses a 3-pin IEC320 connector. These configurations should not be assumed interchangeable without checking the assembly and installation requirements.
2. Do not assume CE and non-CE versions are identical. The 51401497-100 is identified as a non-CE version. Verify the equipment’s certification requirements and original hardware revision before selecting a replacement.
3. Check both node power paths. Because this is a dual-node supply, testing only one connected node is insufficient. Under an approved maintenance procedure, verify both output paths, connector contacts, startup behavior, and power stability. Obtain the correct electrical limits from the original hardware documentation rather than applying generic power-supply values.
For incoming inspection, check the PCB identification, FW25-92 designation, connector type, board condition, solder joints, and signs of overheating. Request a functional test covering both node outputs where test facilities are available.
Related Products
The following parts are relevant to the Honeywell dual-node power and legacy LCN hardware environment:
- 51402184-100 — Documented replacement for 51401497-100. Uses an 8-pin Beau Vernitron connector; verify installation compatibility.
- 51196655-100 — Dual-node power supply with a 3-pin IEC320 connector, used in CE-marked modules and some earlier non-CE modules.
- 51401473-100 — Honeywell node fan assembly, a related hardware maintenance component.
- 51401496-100 — Honeywell LCN-related hardware part; confirm its exact function and assembly compatibility before ordering.
- 51401551-201 — Honeywell K2LCN circuit board reference appearing in legacy control-system documentation.
- 51402615-200 — K2LCN circuit board with 2 MB memory, documented as a replacement for 51401551-201.
- 51190516-100 — Optically isolated solid-state relay used in related legacy control hardware.
- 51190526-100 — High-reliability general-purpose DC relay for associated control hardware.
The replacement relationship between 51401497-100 and 51402184-100 is documented in Honeywell’s PLC Gateway planning and installation material. The other items are related maintenance references, not direct substitutes.
Procurement and quality-control note: Specify the complete part number 51401497-100 and FW25-92 designation. Confirm that the required version is the older non-CE assembly. If considering 51402184-100 as a replacement, compare the connector, mounting arrangement, and system documentation first. Do not approve a substitute based only on the dual-node power supply description.
