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- Honeywell
- SPS5785 51198651-100
- Power Module
- USA
- 150 x 100 x 50 mm
- 0.85 kg
- Xiamen, China
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Product Overview
The Honeywell SPS5785 (Part No. 51198651-100) is an industrial-grade power supply module used in Honeywell UCN (Universal Control Network), HPM (High-Performance Process Manager), and related process control architectures.
It is designed to provide regulated system power distribution, ensuring stable operation of controllers, I/O modules, and backplane electronics in mission-critical distributed control systems (DCS). The module is a key component in maintaining continuous and reliable system-wide power integrity.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Honeywell |
| Model | SPS5785 |
| Part Number | 51198651-100 |
| Product Type | Power Module |
| System Series | UCN / HPM / Process Manager systems |
| Input Voltage | 100–240 VAC |
| Input Frequency | 47–63 Hz |
| Output Voltage | Typically 24 VDC system power (and auxiliary outputs depending on configuration) |
| Output Power | Industrial-grade regulated DC supply |
| Protection Features | Overvoltage, overload, short-circuit protection |
| Redundancy | Supported in parallel/redundant configurations |
| Cooling Method | Natural convection / cabinet cooling |
| Operating Environment | Industrial control systems |
| Operating Temperature | -20°C to +60°C (typical industrial range) |
| Dimensions | 150 × 100 × 50 mm |
| Weight | 0.85 kg |
Function and Working Principle
The SPS5785 functions as a centralized power regulation and distribution module within Honeywell control system cabinets.
It is responsible for:
- Converting AC mains power into regulated DC output
- Supplying stable power to controllers and I/O subsystems
- Maintaining voltage stability under variable load conditions
- Protecting system modules from electrical faults
- Supporting redundant or parallel power configurations
- Ensuring uninterrupted operation of process control systems
It does not perform control logic; it provides foundational electrical power for system operation.
System Role in Architecture
The Honeywell SPS5785 plays a core infrastructure role as a system power backbone in industrial automation environments.
It is typically used for:
- UCN-based control systems
- HPM (High-Performance Process Manager) cabinets
- Process automation controller racks
- I/O subsystem power distribution
- Redundant DCS power architectures
It ensures all connected modules receive stable and regulated operating power.
Industrial Applications
- Oil and gas production systems
- Petrochemical refineries
- Power generation plants
- Chemical processing facilities
- Water and wastewater treatment systems
- Large-scale industrial automation systems
Installation & Integration
Proper installation ensures stable system operation:
- Mounted inside Honeywell control system cabinets
- Connected to AC mains power input (100–240 VAC)
- Distributes regulated DC power to system backplane
- Requires proper grounding and thermal management
- Used in redundant or parallel power supply configurations
- Installed as part of DCS system commissioning
Compatible Components
- Honeywell UCN / HPM controllers
- Process Manager (PM/APM) systems
- System backplane racks
- I/O modules (MC, MU, TC series)
- Redundant power supply configurations
- Industrial control cabinet systems
Recommended Alternative Models
| Model | Type | Application |
|---|---|---|
| SPS5713 | Mainframe power module | Lower capacity systems |
| SPS5700 series | Power supply family | Similar architectures |
| Redundant PSU modules | Backup power systems | High availability setups |
| Modern DIN rail PSUs | Replacement systems | New automation panels |
| Third-party industrial PSUs | General replacement | PLC/DCS hybrid systems |
Key Advantages
- Stable regulated DC power output
- High reliability for continuous operation
- Supports redundant configurations
- Industrial-grade protection features
- Compatible with legacy Honeywell DCS systems
- Efficient power conversion and distribution
- Designed for mission-critical environments
FAQs
Q1: What is the main function of the SPS5785?
It provides regulated power for Honeywell control system modules.
Q2: What systems use this module?
UCN, HPM, and Honeywell process control architectures.
Q3: Does it perform control functions?
No, it only supplies and regulates system power.
Q4: Can it be used redundantly?
Yes, it supports parallel and redundant configurations.
Q5: Why is it important?
It ensures stable power delivery for continuous DCS operation.
Conclusion
The Honeywell SPS5785 (51198651-100) Power Module is a critical infrastructure component in Honeywell distributed control systems. It ensures reliable, regulated, and redundant power delivery to controllers and I/O modules, enabling stable and continuous operation of industrial automation systems in demanding environments.