ABB TEYF3100 Molded Case Circuit Breaker

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1. Product Overview

The ABB TEYF3100 is a high-performance Molded Case Circuit Breaker (MCCB) designed for industrial and commercial distribution systems to provide overload, short-circuit, and undervoltage protection. The TEYF3100 features a modular design and advanced trip mechanism, ensuring reliable disconnection. It is suitable for low-voltage distribution and motor protection and can be integrated with auxiliary contacts, alarm modules, and communication modules for intelligent distribution management.

2. Main Technical Specifications

• Manufacturer: ABB

• Model: TEYF3100

• Product Type: Molded Case Circuit Breaker (MCCB)

• Rated Current (In): 100 A

• Poles: 3-pole / 4-pole optional

• Breaking Capacity (Icu): 35 kA @ 400 V AC

• Rated Operational Voltage (Ue): AC 400–690 V

• Mechanical Life: >10,000 operations

• Electrical Life: >6,000 operations

• Trip Type: Thermal-magnetic (optional electronic trip module)

• Auxiliary Functions:

  • Auxiliary contacts (status indication)

  • Alarm modules

  • Optional communication modules (Modbus/Profibus)

• Mounting: DIN rail or panel mounting

• Ambient Temperature Range: -25 °C to +70 °C

• Protection Class: IP20 (optional IP40 / IP65 enclosure)

• Standards Compliance: IEC 60947-2, EN 60947-2

3. Advantages and Features

1. High Breaking Capacity and Reliable Protection
   Thermal-magnetic trip ensures safe disconnection under overload, short-circuit, and undervoltage conditions.

2. Modular Design
   Supports integration with auxiliary contacts, alarm modules, and communication modules for intelligent monitoring.

3. Flexible Operation
   Supports manual operation, mechanical locking, or remote operation to meet diverse requirements.

4. Industrial-Grade Reliability
   High mechanical and electrical endurance suitable for frequent operation and harsh environments.

5. Easy Installation
   Supports DIN rail or panel mounting for convenient system integration and maintenance.

4. Typical Applications

• Industrial low-voltage distribution systems

• Commercial building distribution and electrical protection

• Motor and production equipment protection

• HVAC systems and large machinery

• Intelligent distribution and control cabinets

5. Installation and Operation Notes

1. Verify the breaker’s rated current, voltage, and breaking capacity before installation.

2. Follow wiring diagrams carefully to ensure correct polarity and torque on connections.

3. Install in a dry, ventilated environment, avoiding high temperature, humidity, or corrosive gases.

4. Conduct mechanical and electrical functional tests before commissioning to ensure proper operation.

5. Regularly inspect the breaker, auxiliary contacts, and alarm modules to ensure long-term reliable operation.

The structure and details of the product：

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