ABB TMAX T5N630 modular circuit breaker

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1. Product Overview

The ABB TMAX T5N630 is a high-performance modular molded case circuit breaker designed for low-voltage distribution in industrial and large building applications. It provides reliable overload, short-circuit, and isolation protection, ensuring safe operation of power systems and equipment. The T5N630 series features a compact, modular design with high expandability, suitable for distribution panels and busbar systems.

2. Technical Specifications

Electrical Ratings

• Model: T5N630

• Rated Current (In): 630 A

• Rated Operating Voltage (Ue): 690 V AC

• Poles: 3P / 4P

• Breaking Capacity (Icu/Ics): 50 kA / 35 kA (AC-23A, 400 V)

• Insulation Voltage Between Poles: 4 kV

• Residual Current Protection: Optional RCD module

• Mechanical Life: ≥ 10,000 operations

• Electrical Life: ≥ 4,000 operations (AC-23A)

Environmental & Installation

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

• Protection Degree: IP20 (cabinet installation)

• Mounting: DIN rail or screw mount

• Dimensions (WxHxD): Approx. 150 mm × 200 mm × 100 mm

• Weight: Approx. 12 kg

Auxiliary & Accessories

• Auxiliary contact modules

• Undervoltage/overvoltage trip modules

• Mechanical interlock modules

• Communication modules (optional, compatible with smart distribution systems)

3. Advantages & Key Features

1. High-capacity protection — Rated current 630 A, breaking capacity up to 50 kA ensures system safety.

2. Modular design — Easy to expand and maintain, compatible with various accessories.

3. High reliability — Long mechanical and electrical lifespan suitable for industrial and building LV systems.

4. Multi-functional expansion — Supports auxiliary contacts, RCD, and communication modules.

5. Compact installation — Saves panel space and facilitates wiring and management.

6. Standards compliant — Meets IEC/EN 60947-2 standards for safety and reliability.

4. Application Areas

• Industrial plant power distribution

• Commercial and high-rise building LV distribution

• Data centers and telecom power systems

• Energy management and microgrid systems

• Water treatment, chemical, and pharmaceutical industries

• Automated production lines and electromechanical equipment protection

5. Precautions

1. Confirm rated current matches system load before installation to avoid overload or damage.

2. Follow wiring diagrams and electrical standards for safety and reliability.

3. Install in dry, well-ventilated environments, avoiding high humidity, dust, or corrosive gases.

4. Disconnect power before maintenance to ensure safety.

5. Regularly check mechanical interlocks, auxiliary contacts, and communication modules.

6. Do not exceed rated voltage or temperature to avoid equipment damage or reduced lifespan.

The structure and details of the product：

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