Honeywell SPS5710-2-LF 51198685-100 | Exact Part ID

1. Honeywell SPS5710-2-LF 51198685-100 | Exact Part ID

2. Unboxing & Physical Snapshot

• Brand / Model: Honeywell SPS5710-2-LF
• Part Number: 51198685-100
• Product Type: Series C 20 A power supply
• Input: 100–240 VAC, 47–63 Hz, up to 10 A
• Output: 24–26 VDC, 20 A
• Physical Dimensions: Exact OEM mechanical dimensions should be confirmed against the unit drawing before cabinet layout. Published third-party dimensions vary significantly.
• Estimated Shipping Weight: Allow approximately 2–5 kg per unit for freight planning. Published values range from about 2 kg to 5 kg, with some listings reporting 11.4 lb; packaging can materially change the gross weight.
• What’s in the Box: Power supply module; mounting hardware, documentation, and accessories depend on the supplied condition and original Honeywell packaging.
• Identification Check: Match SPS5710-2-LF and 51198685-100 on the nameplate. Do not substitute based solely on the SPS5710 family designation.

Honeywell’s own Series C documentation identifies 51198685-100 specifically as the replacement 20 A power supply, which makes the complete part number important during warehouse receiving and replacement verification.

3. Product Introduction

Compliance hook: For a legacy DCS power system, the exact OEM part identity matters more than a nominally similar 24 VDC supply. The SPS5710-2-LF, part number 51198685-100, is identified by Honeywell documentation as the Series C 20 A power-supply replacement (a useful distinction when multiple SPS5710 variants are present in the storeroom).

The unit accepts 100–240 VAC and provides 24–26 VDC at 20 A, making it a substantial power-conversion component rather than a small plug-in I/O card. Published technical data also specifies an operating range of −40°C to +70°C.

Treat the certification markings as part of the asset identity. A replacement with the same electrical rating but a different approval configuration may not satisfy the site’s engineering or hazardous-area documentation.

4. Core Technical Specifications

Parameter	Value
Manufacturer	Honeywell
Model	SPS5710-2-LF
Part Number	51198685-100
Product Type	Series C Power Supply
Input Voltage	100–240 VAC
Input Frequency	47–63 Hz
Maximum Input Current	10 A
Output Voltage	24–26 VDC
Output Current	20 A
Operating Temperature	−40°C to +70°C
Cooling	Passive / convection cooling reported
Protection	Overcurrent, overload, short-circuit protection reported
Efficiency	>85% reported by third-party technical listings
System Association	Honeywell Series C / DCS power system
Manufacturer Status	Reported as discontinued by Radwell

Honeywell SPS5710-2-LF 51198685-100

The 20 A output rating is the key thermal and electrical consideration. At full load, the supply can deliver roughly 480–520 W at the stated 24–26 VDC range; actual heat dissipation depends on conversion efficiency and operating load. Do not use a generic heat-loss figure for cabinet thermal calculations without the OEM efficiency curve.

5. ? Global Compliance & Industry Certifications

Potential regulatory markings associated with this class of industrial power hardware include:

• CE Mark — may apply to the applicable electrical and EMC conformity requirements.
• UL / cUL or CSA — North American electrical safety approvals may be applicable to the specific manufactured configuration.
• ATEX / IECEx — relevant only where the specific assembly has the required hazardous-area certification and is installed within its certified conditions.
• Class I, Division 2 / Zone 2 — a specific 51198685-100 Rev. A listing reports hazardous-area markings including Class I, Div. 2 and Zone 2 ratings. This should not be generalized to every production lot or revision.
• Marine approvals such as DNV — do not assume marine approval merely because the equipment is used offshore. Verify the actual certificate.

A Class I, Division 2 approval is important because it establishes controlled ignition-related requirements for equipment installed where flammable gases or vapors may occasionally be present.

Verify specific lot certifications with OEM.

For an audit file, retain a photograph of the nameplate, revision marking, certification symbols, and serial/date code with the receiving record.

6. ? Long-Term Storage & Asset Preservation Guide

1. Keep the power supply in its original ESD-protective packaging whenever possible. Do not leave the PCB or exposed connector surfaces sitting on ordinary cardboard or polyethylene bags. Static discharge can damage power-control electronics without leaving visible evidence.
2. Control warehouse humidity and condensation. Maintain a dry indoor storage environment, preferably below approximately 60% RH, with no rapid temperature cycling. The aluminum heatsink, connector hardware, PCB assemblies, and plated contacts are all vulnerable to long-term moisture exposure.
3. Do not perform unnecessary energized “maintenance runs” on shelf stock. For a stored AC/DC power supply, inspection of the electrolytic capacitors, input components, output terminals, and enclosure should precede any controlled energization after prolonged storage. If a long-storage reforming procedure is required, follow the applicable OEM/service documentation rather than applying full mains voltage immediately.

Also record the date code and revision at receiving. That information can become important when an obsolete power supply is replaced several years later.

7. Physical Installation Prerequisites

• Install the unit in the specified Series C power-system/cabinet arrangement, rather than treating it as a generic DIN-rail power supply.
• Provide sufficient free air around the enclosure for convection cooling. Do not block ventilation openings or press adjacent heat-producing equipment directly against the power supply.
• Maintain cabinet spacing according to the applicable Honeywell installation drawing; do not assume a generic 50 mm clearance is an OEM requirement.
• Verify the protective earth/ground connection before applying AC input.
• Confirm that the AC feeder, overcurrent protection, wiring gauge, terminal hardware, and downstream 24 VDC load are appropriate for a 20 A output circuit.
• Inspect the input and output terminals for oxidation, loose hardware, or shipping damage before installation.
• Verify the nameplate voltage and certification markings against the cabinet design documentation.

The mechanical installation arrangement should be checked against the exact Series C power-system documentation. This is particularly important for legacy cabinets where neighboring modules, terminal assemblies, and cable ducts can constrain airflow.

8. Buyer’s FAQ

Q: Which HS tariff code should be used for international shipment?
A: HS 8537.10 is listed by one international automation distributor for this part. However, HS classification is jurisdiction-specific and depends on the product’s actual function and configuration. Treat 8537.10 as a classification lead, not a guaranteed customs ruling.

Q: Does the Country of Origin need to match the commercial invoice?
A: No. Country of Origin (COO) describes where the product was manufactured under applicable origin rules; it is not automatically the same as the seller’s country. This part has conflicting third-party origin claims, including USA and China, so use the actual OEM nameplate, certificate, and manufacturing records for the shipped unit rather than copying a supplier’s catalog field.

Q: Should I insure a shipment containing this power supply?
A: Yes, particularly for international shipments. The unit is a relatively high-value industrial power component, and freight damage to connectors, terminal hardware, or the internal PCB assembly may not be obvious from the outside. Photograph the packaging and nameplate before dispatch.

Q: Does 51198685-100 include the latest firmware?
A: No firmware should be assumed. This is a power-supply module, not a programmable controller. Its identification is primarily hardware/configuration based. If the supplier claims that a firmware revision is included, request the exact OEM documentation and revision evidence rather than accepting a generic “latest firmware” statement. Honeywell’s Series C documentation identifies 51198685-100 as a 20 A power-supply replacement part.