ABB 1SDA067803R1 Molded Case Circuit Breaker

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Product Overview

ABB 1SDA067803R1 Molded Case Circuit Breaker (MCCB)
The ABB 1SDA067803R1 is a high-performance low-voltage molded case circuit breaker designed for industrial, commercial, and residential distribution systems. It provides overload, short-circuit, and under-voltage protection. Using advanced thermal-magnetic protection technology, the breaker quickly disconnects circuits during abnormal current conditions to protect equipment and personnel. Its modular design allows integration with accessories such as auxiliary contacts, alarm modules, and trip units for intelligent power management.

Technical Specifications

• Model: 1SDA067803R1

• Device Type: Molded Case Circuit Breaker (MCCB)

• Poles: 3P (Three Pole)

• Rated Current: 100 A

• Rated Voltage: AC 400 V / 415 V

• Rated Short-Circuit Breaking Capacity: 25 kA

• Tripping Characteristic: Type C / Optional (general load)

• Mechanical Life: ≥ 10,000 operations

• Mounting Method: DIN rail or bolt mounting

• Operating Temperature: -25℃ to +70℃

• Protection Class: IP20

• Standards: IEC 60947-2 / IEC 60947-1

Advantages and Features

1. Reliable Protection
   Provides fast and stable disconnection for overload, short-circuit, and under-voltage conditions.

2. Modular Design
   Flexible combination with auxiliary contacts, trip units, and alarm modules for intelligent monitoring.

3. Industrial Durability
   Long mechanical life, high temperature resistance, vibration-resistant, suitable for industrial environments.

4. Easy Operation
   Manual operation is simple; lockable design prevents accidental operation.

5. Compact Structure
   Small size allows flexible installation, saving space in distribution panels.

Typical Applications

• Low-voltage distribution systems for industrial production lines

• Commercial building distribution boards

• Motor, pump, and fan system protection

• PLC/DCS system power protection and monitoring

• Can be combined with residual current devices (RCD) and auxiliary modules

• Energy management systems and building automation

Installation & Usage Notes

1. Power Off Before Installation: Disconnect power to ensure safe operation.

2. Correct Wiring: Connect phase and neutral according to wiring diagrams to avoid misoperation or short circuits.

3. Environmental Conditions: Install in dry, ventilated areas, free from corrosive gases.

4. Rated Current Matching: Ensure breaker rating matches load to prevent nuisance tripping.

5. Regular Inspection: Check breaker operation and wiring status for long-term stable operation.