ABB SAFT138CHS Expansion Module Unit

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Product Overview

The ABB SAFT138CHS is a high-performance Expansion Module Unit designed for ABB AC series control systems. It expands the I/O channels of CPU modules or control units, enabling additional input and output functionality.

This module supports high-speed data transmission and real-time communication, seamlessly integrating with ABB Advant, AC800M, and AC100 systems to increase system flexibility and scalability. SAFT138CHS ensures reliable operation in industrial automation environments.

Technical Specifications

• Model: SAFT138CHS

• Type: Expansion Module Unit

• Operating Voltage: 24 V DC

• Power Consumption: ≤ 8 W

• I/O Channels: Expandable 16–32 channels (depending on system configuration)

• Interface Type: Compatible with ABB I/O bus

• Supported Protocols: Modbus, Profibus, Ethernet, Advant Fieldbus, etc.

• Operating Temperature: –25°C to +70°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5% – 95%, non-condensing

• Cooling Method: Natural convection

• Protection Degree: IP20

• Mounting Method: DIN rail or slot-based modular installation

• Dimensions: approx. 130 × 90 × 45 mm

• Weight: approx. 0.65 kg

• Certifications: CE, UL, CSA, IEC 61131-2

Advantages and Features

1. High expandability — adds additional I/O channels for system upgrades.

2. High-speed data transmission — supports real-time signal processing and control.

3. Modular design — easy installation, replacement, and maintenance.

4. Excellent compatibility — seamlessly integrates with ABB Advant, AC800M, and AC100 systems.

5. Strong EMC immunity — industrial-grade design for harsh environments.

6. Energy-efficient design — low power consumption and reduced heat generation.

Application Areas

• Process automation systems

• Power generation and substation automation

• Oil, gas, and chemical automation

• Metallurgy, mining, and production line control

• Water treatment and environmental automation

• ABB Advant, AC800M, AC100 series control systems

• Distributed Control Systems (DCS) and PLC systems

Precautions

1. Ensure compatibility with the main control unit and I/O modules before installation.

2. Installation and maintenance must be performed with power off.

3. Avoid high temperature, high humidity, or corrosive environments.

4. Maintain ventilation around the module to prevent overheating.

5. Regularly inspect interfaces and terminals for reliable connections.

6. Backup configuration files and parameters before system upgrades or module replacement.

The structure and details of the product：

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