Product Advantages

Wide-voltage compatible input with dual power supply modes: universal 85–264V AC and 48V DC battery power. It delivers stable output under plant grid fluctuations and short-term power outages without extra voltage regulators.

Native support for parallel redundant configuration. Two or more modules share load evenly in synchronization. Seamless output switching without voltage drop occurs upon single-module failure, eliminating risks of control station shutdown and interlock activation.

Built-in intelligent charge-discharge circuit for 48V storage batteries, which automatically manages battery float charging, equalizing charging and over-discharge protection. External chargers are eliminated to simplify cabinet wiring layout.

Multi-channel graded DC outputs: 25.25V main power supply plus independent 6V AC synchronization signal output, matching power specifications of HPM controllers and various I/O cards. Its precise ripple control meets acquisition requirements of analog signals.

Stable full-load operation across wide temperature range: continuous full-power output from -20°C to 55°C. Linear derating above 55°C allows low-load operation up to 65°C, suitable for low-temperature northern plants and high-temperature refining units.

Integrated metal enclosure with built-in self-diagnosis circuit. Multiple hardware protections against overvoltage, overcurrent, short circuit and overheating are equipped. Front panel LED indicators provide intuitive fault alarms for fast maintenance troubleshooting.

Plug-in installation for standard cabinet slots with full compatibility with original racks. It can directly replace old black-enclosure 51109456 series power supplies during new and old system retrofits without cabinet wiring modification.

Industrial-grade components with long service life. Original-design service life exceeds 10 years. Sufficient spare parts supply and mature repair & replacement channels drastically cut plant downtime costs.

Product Specifications

Electrical Performance Specifications

AC input range: 85VAC ~ 264VAC, 50/60Hz; DC backup input: 48VDC storage battery

Main output under full-load AC input: 25.25VDC/10A; Output under 48V battery power supply: 24.25VDC

Synchronization signal output: 6VAC/35mA for system clock frequency synchronization

Built-in battery charging circuit with automatic charging current limitation to prevent battery overcharging and swelling

Load sharing error ≤3% for multiple parallel units with zero circulating current loss

Environmental & Protection Specifications

Operating temperature range: -20℃ ~ +55℃ at full load; maximum withstand temperature 65℃ (linear derating at 0.5A/℃)

Storage temperature: -40℃ ~ +70℃; moisture and dust resistance rating IP20 (for cabinet installation only)

Overvoltage protection threshold: 30VDC; overcurrent protection: 12A; short-circuit protection cuts off output instantly; overheat protection triggers automatic shutdown at 80℃ and resumes after cooling

Compliant with industrial EMC standards to suppress grid interference generated by inverters and high-power motors

Mechanical Structural Specifications

Integrated silver aluminum alloy housing, standard HPM cabinet slot dimension, hot-swappable replacement (online replacement available under redundant configuration without system shutdown)

Front panel equipped with dual status indicators: green light for normal power operation, red light for fault alarm

Internal heat dissipation air duct with passive cooling design (no fragile cooling fans) to reduce long-term maintenance failures

Unified rear terminal blocks with separated zones for AC input, battery port and multi-channel DC outputs; clearly labeled terminals to avoid miswiring

Applicable Industries

Offshore Oil Platforms: HPM control stations for offshore oil extraction. Tolerates grid voltage sags, salt mist and low-temperature environments; redundant power supply ensures uninterrupted oil production interlock control

Refining & Chemical Plants: Main DCS cabinets for ethylene, oil refining and fine chemical processes. Delivers stable power for analog signal acquisition to prevent process abnormalities caused by parameter fluctuations

Thermal Power & Cogeneration Plants: TDC3000 auxiliary control systems for boilers and steam turbines; works with UPS backup batteries to sustain short-term control during power outages

Long-Distance Oil & Gas Pipelines: Remote HPM control units for valve chambers along pipelines; 48V battery backup power for remote unmanned stations

Pharmaceutical Fine Processes: Batch control systems for aseptic pharmaceutical production; low-ripple output guarantees high accuracy of metering instrument sampling

Large Wastewater Treatment Plants: Experion PKS control stations for biochemical and chemical dosing processes

Coal Chemical & Fertilizer Production: Power supply for complete control system cabinets under high-temperature and high-pressure processes

Metallurgy & Steel Auxiliary Automation: Power supply units for auxiliary DCS cabinets of heating furnaces and rolling production lines

Product Comparison

Comparison 1: 51198947-100 vs 51198651-100 (New Generation UCN Power Supply)

51198947-100: Launched in 1997, compatible with legacy TDC3000 cabinets. It features relatively low battery charging power with a maximum load current of 10A. It is the top choice for existing equipment retrofits with abundant spot stock available.

51198651-100: New model released after 2009, upgraded to 12A output current with optimized electromagnetic filtering. Designed for brand-new Experion PKS cabinets and recommended for new construction projects.

Comparison 2: 51198947-100 vs Obsolete Black-enclosure Model 51109456-200

51109456-200: Manufactured between 1988 and 1994 with inherent overvoltage flaws. Honeywell officially mandates full replacement of all units of this model.

51198947-100: The overvoltage defect has been rectified, complete multi-layer hardware protection is integrated, and enclosure heat dissipation performance is enhanced. It supports direct in-place replacement without rewiring.

Comparison 3: 51198947-100 vs Series C CC-PWR401 (Power Supply for C300 Controllers)

51198947-100: Dedicated to UCN HPM/PM processor cabinets, equipped with multi-channel DC outputs and battery management functions, suitable for legacy TDC3000 systems.

CC-PWR401: Only compatible with new-generation C300 controllers without 48V battery charging capability. The two models feature incompatible hardware slots and cannot be interchangeably deployed.

Supporting Products

HPM/PM/APM Processor Controllers: Models 51403794-100 and 51403795-100, the core load powered by this power supply module.

Series C I/O Cards for UCN Systems: Analog input cards and digital input/output cards, powered collectively via the power backplane.

48V Industrial Lead-acid Battery Packs: Matched with the built-in charging circuit of the module to serve as backup power during short power failures.

Standard HPM System Cabinet Racks: Mounting carriers with dedicated slots for the power supply module.

UCN Communication Interface Cards: NIM Network Interface Modules relying on stable power output from this unit for reliable communication.

Special System Wiring Cables: 51202971 series cabinet power cords matching terminal specifications of the module.

TDC3000/Experion PKS System Backplanes: Distribute multi-channel DC power to all installed cards.

Q1: Can model 51198947-100 directly replace the older 51109684-100?

A1: Yes. They are fully compatible in terms of hardware slots, output specifications and wiring terminals. Direct plug-and-play in-place replacement is available without any cabinet wiring modification.

Q2: What is the maximum number of HPM matching I/O cards that a single power supply can drive?

A2: It delivers a full-load output of 10A. It is recommended to connect no more than 12 I/O cards per unit. If more cards are required, deploy two power supplies in parallel redundancy to avoid abnormal voltage drop caused by overload.

Q3: What fault does a steady red indicator light on the module front panel indicate?

A3: There are three typical causes:

Overheating alarm (dust accumulation in air ducts or poor cabinet ventilation);

Output short circuit (short-circuit on backplane or card wiring);

Abnormal input voltage (mains voltage below 85VAC or above 264VAC).Power off the unit, inspect wiring and heat dissipation, then restart for testing.

Q4: Do we need to distinguish brand-new original units from used refurbished units during procurement? Are there any compatibility differences between them?

A4: Both versions feature identical functionality. Brand-new units come with longer warranty periods and are ideal for new construction projects. Refurbished second-hand spares are suitable for emergency temporary replacement on legacy facilities. Both support parallel redundant operation.

Q5: Can two redundant power supplies be connected to the same mains circuit?

A5: Not recommended. Standard specifications require two independent mains input circuits. If one circuit trips, the other power supply can maintain continuous power supply to improve overall system safety level.

Q6: The 48V battery fails to charge. Is the power module faulty or is the battery damaged?

A6: First measure the open-circuit voltage of the battery. A reading below 42V indicates aged and failed batteries. If the voltage is normal yet no charging current flows, the internal charging circuit of the power supply is defective and the module needs replacement.

Q7: The power supply frequently triggers overheating protection during hot summer at plant units. How to resolve this issue?

A7: Clean dust inside cabinet air ducts, install industrial cooling fans for cabinets to lower ambient temperature. If the load current exceeds 8A, add one redundant power supply to share the load.

Q8: Which Honeywell DCS systems are compatible with this model? Can it work with C300 controllers?

A8: It is only compatible with TDC3000 and Experion PKS UCN architecture HPM/PM/APM control stations. C300 series controllers must use CC-PWR401 power supplies; cross-use is impossible due to hardware incompatibility.