ABB 1SDA 054034R1 Molded Case Circuit Breaker

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• 1. Product Overview

  The ABB 1SDA054034R1 Molded Case Circuit Breaker (MCCB) is designed for overload, short-circuit, and under-voltage protection in electrical systems. It offers high reliability and long service life, suitable for industrial, commercial, and power distribution applications, ensuring protection for both equipment and personnel.

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  2. Technical Specifications

  Parameter	Specification
  Model	1SDA054034R1
  Type	Molded Case Circuit Breaker
  Poles	3P (three poles)
  Rated Current	40 A
  Rated Voltage	480 V AC / 50-60 Hz
  Rated Short-Circuit Breaking Capacity	10 kA @ 480 V AC
  Instantaneous Trip Characteristic	B/C/D type selectable
  Mechanical Life	≥ 10,000 operations
  Electrical Life	≥ 5,000 operations (at rated load)
  Mounting	Panel mount or DIN rail mount
  Operating Temperature	-25 ℃ ~ +60 ℃
  Protection Rating	IP20 (standard)
  Operation Method	Manual lever / optional motorized operation
  Status Indication	ON/OFF position; optional overload and short-circuit indication
  Dimensions	90 × 75 × 70 mm (approx.)

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  3. Key Features and Benefits

  • Reliable protection against overload, short-circuit, and under-voltage

  • Long mechanical (≥10,000) and electrical (≥5,000) operation life

  • Flexible installation: panel mount or DIN rail

  • Compact design saves space in control cabinets

  • Multiple instantaneous trip types (B, C, D) for different load protection

  • Industrial-grade application for automation, motor control, and low-voltage power systems

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  4. Typical Applications

  • Industrial electrical distribution systems

  • Commercial and residential building electrical protection

  • Motor control and pump/fan system protection

  • Automated production lines and machinery protection

  • Power, chemical, metallurgical, and machinery industries

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  5. Installation & Usage Notes

  • Match rated current, voltage, and breaking capacity with system requirements

  • Avoid high temperature, humidity, dust, and corrosive gases

  • Secure all terminal connections to prevent loose contacts or arcing

  • Regularly inspect breaker operation, overload trips, and short-circuit trips

  • Operate the lever smoothly; follow manufacturer instructions for motorized operation

The structure and details of the product：

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