ABB 1SDA054133R1 molded case circuit breaker

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• 1. Product Overview

  The ABB 1SDA054133R1 Molded Case Circuit Breaker (MCCB) is part of ABB’s Tmax series, designed for reliable circuit, overload, and short-circuit protection in low-voltage power distribution systems.
  It features a compact modular structure, high breaking capacity, and customizable trip units, providing dependable protection for industrial, commercial, and infrastructure applications.

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  2. Technical Specifications

  Item	Specification
  Model	1SDA054133R1
  Series	ABB Tmax Series
  Type	Molded Case Circuit Breaker (MCCB)
  Poles	3P
  Rated Current (In)	250 A
  Rated Operational Voltage (Ue)	690 V AC
  Rated Insulation Voltage (Ui)	800 V
  Impulse Withstand Voltage (Uimp)	8 kV
  Breaking Capacity (Icu)	36 kA @ 415 V AC
  Trip Unit Type	Thermal-magnetic or electronic (optional)
  Operation	Manual or motorized (optional)
  Mounting Type	Fixed or withdrawable
  Auxiliary Contacts	Optional alarm, auxiliary, and undervoltage release units
  Protection Degree	IP20 (after installation)
  Mechanical Life	≥ 10,000 operations
  Electrical Life	≥ 5,000 operations (at rated load)
  Operating Temperature	-25°C to +70°C
  Standards Compliance	IEC 60947-2, CE, CCC certified

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  3. Advantages & Features

  • High breaking capacity for safe and stable operation under heavy loads.

  • Modular design allows flexible installation and accessory expansion.

  • Accurate protection against overloads, short circuits, and ground faults.

  • Compact and space-saving structure for efficient panel integration.

  • High reliability with arc resistance and thermal durability.

  • Smart expandability with optional remote operation and communication modules.

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  4. Application Fields

  • Industrial automation and motor control systems

  • Power distribution panels and MCCs

  • Commercial and public building power systems

  • Data centers and IT infrastructure

  • Renewable energy systems (solar, wind)

  • Transportation and infrastructure projects

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  5. Precautions

  1. Verify rated current, voltage, and breaking capacity before installation.

  2. Ensure firm and reliable terminal connections.

  3. Do not service or replace components while energized.

  4. Follow derating guidelines under high ambient temperatures.

  5. Inspect contacts and trip mechanisms periodically.

  6. Maintain proper grounding and follow electrical safety standards.

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The structure and details of the product：

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