Description
Honeywell 51198685-100 Power Supply Module
Product Overview
The Honeywell 51198685-100 is a 20 A power supply module used in Honeywell Series C power-system architectures. Honeywell documentation lists the part specifically as a 20 A Power Supply and shows it in the Series C power-system block diagram with a 25 VDC output feeding the system power-distribution bus. The documented AC source is 120/240 VAC, 50/60 Hz.
In the Experion Series C platform specification, Honeywell identifies the 51198685-100 as the spare/loose 20 A power-supply item associated with the 20 A Series C power systems. The same platform documentation distinguishes the complete system configurations: CC-PWRR01 is a redundant 20 A system using two power supplies, while CC-PWRN01 is a non-redundant 20 A configuration using one supply. This distinction matters during replacement because the module is a building block of the power subsystem, not the complete rack-level power system itself.
Honeywell’s Universal Process Cabinet documentation provides another useful identification: 51198685-100 is listed as the power module for both redundant and non-redundant 20 A UPC power systems, installed in the 51454235-100 two-PSU chassis. The service documentation identifies the module as SPS5710-2-LF.
For engineers replacing an installed unit, the important point is simple: do not match this component solely by output voltage. Verify the cabinet or chassis, power-system architecture, AC input arrangement, redundancy requirement, and complete part-number marking before installing a replacement.
Product Introduction
Power-system failures are rarely convenient, and the 51198685-100 sits upstream of the control hardware that depends on stable cabinet power. Honeywell specifies it as a 20 A power supply within the Series C architecture, with a 25 VDC system-bus output.
For a legacy replacement, check whether the existing installation is CC-PWRR01 redundant, CC-PWRN01 non-redundant, or part of a Universal Process Cabinet arrangement. The same 51198685-100 module can appear in different system-level configurations.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 51198685-100 |
| Manufacturer | Honeywell |
| Associated Model | SPS5710-2-LF |
| Product Family | Experion Series C / Series C Power System |
| Product Type | 20 A Power Supply Module |
| Input System | 120/240 VAC |
| Input Frequency | 50/60 Hz |
| System Output | 25 VDC |
| Rated Current | 20 A |
| Output Destination | System Power Distribution Bus |
| Redundant Configuration | 2 × 51198685-100 in applicable redundant system |
| Non-Redundant Configuration | 1 × 51198685-100 in applicable 20 A system |
| UPC Chassis | 51454235-100 |
| Installation | Series C power-supply chassis / applicable cabinet power architecture |
Honeywell’s public documentation confirms the 20 A rating, 120/240 VAC system, and 25 VDC system-bus output. It also identifies the part as a loose 20 A supply rather than the complete CC-PWRR01 or CC-PWRN01 power-system assembly.
Important specification note: Some third-party listings report detailed limits such as 85–264 VAC input, 24–26 VDC output, 20 ms hold-up time, and specific efficiency figures. Those values may correspond to the associated Series C power-system specification, but I would not treat every value as a 51198685-100 module-level rating without the applicable Honeywell hardware manual. The conservative values above are the ones directly supported by Honeywell documentation.
Major Features / Practical Advantages
20 A Series C power source
The primary function of the 51198685-100 is straightforward: it supplies the DC power required by the applicable Series C system power bus. Honeywell’s documentation consistently identifies the unit as a 20 A power supply.
This is not a generic DIN-rail 24 VDC supply. Its mechanical and electrical integration is tied to the Honeywell Series C power architecture and, in UPC installations, the specified PSU chassis.
51198685-100
25 VDC system-bus output
Honeywell’s Series C power-system diagram explicitly shows the 51198685-100 producing 25 VDC to the system power-distribution bus. The distinction between the 25 VDC system bus and the separate 24 VDC backup-battery regulator output should be maintained when documenting the cabinet.
That detail is easy to miss in procurement specifications, particularly when third-party descriptions simply call the component a “24 VDC power supply.”
Redundant power-system use
Two 51198685-100 modules are used in the documented redundant 20 A Series C configuration. Honeywell’s CC-PWRR01 specification defines the complete power system as a redundant system containing two power supplies.
The module therefore participates in a cabinet-level redundancy scheme rather than providing redundancy by itself.
Single-supply configuration also supported
Honeywell also documents a non-redundant 20 A power subsystem using one 51198685-100. In other words, finding a single module in a cabinet does not necessarily indicate that the installation is incomplete; the system-level model must be checked.
UPC compatibility
The Honeywell Universal Process Cabinet documentation identifies the 51198685-100 as the supported power module for both redundant and non-redundant 20 A UPC power systems. The module is installed in the 51454235-100 two-PSU chassis.
This gives procurement teams a useful cross-check: if the existing cabinet contains that chassis, the 51198685-100 is a documented replacement module for the corresponding power-system configuration.
Separate from the battery subsystem
The Series C architecture includes separate backup-power components, including the 51199931-200 main backup battery regulator/charger and 51199946-100 24 V backup battery assembly. The 51198685-100 should therefore not be described as the cabinet’s battery charger or UPS module.
That distinction is important when troubleshooting: replacing a failed AC power module does not automatically address a battery-system alarm.
Field-service relevance
Honeywell’s UPC service documentation lists the 51198685-100 among optimal replaceable units and identifies it as SPS5710-2-LF. This confirms its role as a maintainable power-system component rather than merely an internal, non-serviceable assembly.
Related Products
- CC-PWRR01 — Complete redundant 20 A Series C power system using two 51198685-100 power supplies and 120/240 VAC input.
- CC-PWRN01 — Non-redundant 20 A Series C power subsystem using one 51198685-100.
- CC-PWRB01 — Redundant 20 A Series C power system with the 24 V backup battery assembly.
- CC-PWR401 — 40 A redundant Series C power subsystem; a different system-level capacity and configuration.
- CC-PWN401 — 40 A non-redundant power subsystem. It should not be confused with the 20 A 51198685-100 system.
- 51454235-100 — Two-PSU chassis used to house 51198685-100 modules in the documented UPC power architecture.
- 51199930-100 — Series C module rack/chassis shown in Honeywell’s power-system architecture with two 51198685-100 supplies.
- 51199931-200 — Main backup battery regulator and charger providing the separate 24 VDC backup-power function.
- 51199946-100 — 24 V backup battery kit containing three batteries and interconnecting cables.
FAQ
Is 51198685-100 a 24 VDC or 25 VDC power supply?
Honeywell’s Series C documentation identifies the system output associated with this part as 25 VDC to the system power-distribution bus. Some third-party listings describe it generically as a 24 VDC supply because it belongs to a nominal 24 V-class control-power architecture. For a technical datasheet, the Honeywell 25 VDC designation is the safer specification.
Is 51198685-100 the same as SPS5710-2-LF?
Honeywell’s UPC service documentation identifies 51198685-100 as the SPS5710-2-LF power supply module. This identification is also consistent with Honeywell’s documentation listing the part as the supported UPC power module.
Can I use one 51198685-100 in a redundant system?
A single module can be used in a documented non-redundant 20 A configuration, but a redundant CC-PWRR01 system is specified with two 51198685-100 supplies. Do not remove one unit from a redundant installation and assume the resulting configuration retains the original redundancy.
Can I hot-swap the 51198685-100?
Do not assume unrestricted live replacement from the part number alone. The correct procedure depends on the installed Series C or UPC power-system architecture and site maintenance rules. In particular, a redundant cabinet may have different maintenance considerations from a non-redundant installation.
What chassis is used with 51198685-100 in the UPC?
Honeywell’s UPC documentation specifies the 51454235-100 two-PSU chassis. A redundant arrangement uses two 51198685-100 modules in that chassis; a non-redundant arrangement uses one.
Does 51198685-100 include the backup battery?
No. Honeywell documents the 51198685-100 as the 20 A power supply, while the backup-power architecture uses separate components such as the 51199931-200 battery regulator/charger and 51199946-100 battery kit.
Does this support firmware v3.1?
Firmware v3.1 is not a meaningful identification parameter for this power-supply module based on the available Honeywell documentation. Compatibility should instead be established from the Series C power-system configuration, chassis, electrical requirements, and exact hardware identification.
Is 51198685-100 a complete CC- power system?
No. is the complete redundant 20 A power-system configuration, while 51198685-100 is the individual 20 A power-supply module used within that system. Honeywell’s platform specification explicitly separates the system-level model from the spare/loose power supply.
Can I substitute another 20 A, 24 VDC industrial power supply?
Not without engineering approval. The 51198685-100 is designed for a specific Honeywell power-system chassis and distribution architecture. A generic supply with similar electrical ratings may not have the required mechanical interface, system monitoring, redundancy behavior, or cabinet approvals.
Procurement Note
For a Honeywell 51198685-100 replacement, verify the complete installed power architecture before ordering. The critical checks are the full part number, hardware revision, Series C or UPC cabinet identification, PSU chassis, AC input arrangement, redundancy requirement, and system-level model.
Honeywell documentation confirms three important relationships: the 51198685-100 is a 20 A power supply; the Series C system diagram assigns it a 25 VDC system-bus output from a 120/240 VAC supply; and the UPC documentation identifies it as SPS5710-2-LF installed in the 51454235-100 PSU chassis.
For redundant installations, check whether the cabinet uses two 51198685-100 modules. For non-redundant installations, one module may be correct. Do not use the number of physical supplies alone to determine the required replacement: match the cabinet BOM and system model as well.
When sourcing legacy stock, request a photograph of the actual nameplate showing 51198685-100, revision information, and the associated model marking where present. Confirm whether the unit is new surplus, unused original packaging, or refurbished. For a power component upstream of a DCS/IO cabinet, functional test evidence is considerably more useful than cosmetic condition.
