ABB SAFT125CHC Power Supply Module – Industrial-Grade DC Power Source for ABB Control Platforms

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

Applications

• Power Generation Plants: Provides clean DC power to turbine and boiler control systems.

• Oil & Gas Facilities: Ensures voltage stability for field controllers and I/O cabinets.

• Chemical & Petrochemical Plants: Supports distributed I/O, PLCs, and safety controllers.

• Water Treatment Systems: Powers automation units for flow and pressure monitoring.

• Metal & Mining Industries: Operates reliably under vibration and high-temperature conditions.

• Marine Automation: Designed for shipboard or offshore industrial control environments.

• Renewable Energy Systems: Suitable for solar and wind control networks requiring robust supply.

Key Strengths and Advantages

• Exceptional Power Stability: Maintains consistent output voltage with minimal ripple.

• Wide Input Range: Compatible with global AC power standards.

• Integrated Protection System: Safeguards connected modules from electrical surges and overloads.

• High Efficiency Design: Energy-efficient circuitry minimizes operational costs.

• Industrial Reliability: Engineered for harsh environmental performance.

• Silent Operation: Natural convection cooling eliminates fan noise and failure points.

• Plug-and-Play Integration: Seamlessly integrates into ABB’s DCS infrastructure.

• Maintenance Friendly: Quick diagnostics with LED indicators.

• Compact Size: Saves valuable space in dense control cabinets.

• Certified Safety Compliance: Meets strict EMC and electrical protection standards.

Technical FAQs

1. Q: What voltage does the SAFT125CHC supply to ABB modules?
   A: It provides a steady 24 VDC output for ABB control and communication modules.

2. Q: What type of input power does this module accept?
   A: It accepts a universal AC input of 100–240 VAC, 47–63 Hz.

3. Q: Does the SAFT125CHC support redundant configurations?
   A: Yes, it can be paralleled with other power modules for redundancy.

4. Q: What is the power capacity of the module?
   A: It delivers up to 120 watts of continuous output power.

5. Q: How does the module handle overvoltage conditions?
   A: Built-in surge and overload protection automatically isolates the fault.

6. Q: What is the cooling method used?
   A: The module uses natural convection, avoiding mechanical fan wear.

7. Q: Is the module hot-swappable?
   A: It supports replacement during maintenance downtime, not live-swapping.

8. Q: What are the recommended environmental conditions?
   A: Operates from 0°C to +55°C and up to 95% humidity non-condensing.

9. Q: What is the approximate weight of the module?
   A: Around 0.68 kilograms or 1.50 pounds.

10. Q: Which ABB tools can configure or monitor this module?
    A: ABB Control Builder and Symphony Engineering Suite provide diagnostic access.

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