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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Introduction
The ABB SAFT125CHC is a power supply module designed to deliver reliable, regulated DC power for ABB’s Advant, Symphony Plus, and Freelance distributed control systems. This module ensures stable operation of CPUs, I/O modules, and network interfaces in critical process environments, offering robust performance, electrical efficiency, and safety under demanding industrial conditions.
Unlike general-purpose power modules, the SAFT125CHC integrates high-grade filtering and surge suppression circuits, ensuring minimal ripple voltage and high immunity to electrical disturbances — an essential trait for process automation in power generation, oil refining, chemical processing, and heavy industry.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Product Type | Power Supply Module | Provides regulated DC power to ABB control systems |
| Model Number | SAFT125CHC | High-stability ABB DCS power module |
| Input Voltage Range | 100–240 VAC, 47–63 Hz | Wide-range universal AC input |
| Output Voltage | 24 VDC nominal | Optimized for control and communication modules |
| Output Current | Up to 5 A continuous | Supports multiple connected modules |
| Power Output | 120 W typical | High-efficiency energy delivery |
| Efficiency | ≥ 87% | Reduces energy loss and heat generation |
| Protection Features | Overvoltage, overload, short-circuit, surge protection | Comprehensive safety mechanisms |
| Cooling Method | Natural convection | Maintenance-free passive cooling design |
| Status Indicators | LED indicators for power, status, and fault | Simplifies diagnostic procedures |
| Operating Temperature | 0°C to +55°C | Suitable for continuous industrial operation |
| Storage Temperature | -40°C to +85°C | Tolerates wide temperature storage range |
| Humidity Range | 5%–95% non-condensing | Ideal for humid or semi-tropical environments |
| Mounting Type | DIN-rail or rack mount | Flexible installation compatibility |
| Certifications | CE, UL, RoHS, IEC/EN 61000-6-2/6-4 | Meets international safety and EMC standards |
| Dimensions (H × W × D) | 125 mm × 50 mm × 145 mm (4.92″ × 1.97″ × 5.71″) | Compact and lightweight design |
| Weight | 0.68 kg (1.50 lb) | Durable yet easy to handle |
Applications
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Power Generation Plants: Provides clean DC power to turbine and boiler control systems.
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Oil & Gas Facilities: Ensures voltage stability for field controllers and I/O cabinets.
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Chemical & Petrochemical Plants: Supports distributed I/O, PLCs, and safety controllers.
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Water Treatment Systems: Powers automation units for flow and pressure monitoring.
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Metal & Mining Industries: Operates reliably under vibration and high-temperature conditions.
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Marine Automation: Designed for shipboard or offshore industrial control environments.
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Renewable Energy Systems: Suitable for solar and wind control networks requiring robust supply.
Key Strengths and Advantages
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Exceptional Power Stability: Maintains consistent output voltage with minimal ripple.
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Wide Input Range: Compatible with global AC power standards.
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Integrated Protection System: Safeguards connected modules from electrical surges and overloads.
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High Efficiency Design: Energy-efficient circuitry minimizes operational costs.
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Industrial Reliability: Engineered for harsh environmental performance.
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Silent Operation: Natural convection cooling eliminates fan noise and failure points.
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Plug-and-Play Integration: Seamlessly integrates into ABB’s DCS infrastructure.
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Maintenance Friendly: Quick diagnostics with LED indicators.
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Compact Size: Saves valuable space in dense control cabinets.
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Certified Safety Compliance: Meets strict EMC and electrical protection standards.
Excellent PLC
