Products

ABB S203MT-D3 Miniature Circuit Breaker 10 kA 3-P 3A 400V D-Curve

Product Code: S203MT-D3

  • Rated for 3A current & 400V voltage
  • Breaking capacity of 10kA
  • IP20 protection with screw clamp terminals
  • Complies with IEC/EN standards
  • Operates in -25 to 55°C environments
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Specifications

Product Type Miniature Circuit Breaker
Brand ABB
Series S200MT
Ambient Temperature -25 to 55 deg C Operation, -40 to 70 deg C Storage
Curve Type D
Degree of Pollution IP3
Degree of Protection IP20
Depth 69 mm
Electrical Durability 20000 Cycles
Height 88 mm
Housing Colour RAL 7035 Grey
Number of Poles 3
Power Loss 3.6 W
Rated Current 3 A
Rated Frequency 50/60 Hz
Rated Impulse Withstand Voltage 4 kV
Rated Insulation Voltage 440 V
Rated Short Circuit Current 10 kA
Rated Voltage 400 V
Standards and Approvals IEC/EN 60898-1, IEC/EN 60947-2
Terminal Type Screw Clamp
Tightening Torque 2.8 N-m
Width 52.5 mm

Description

<p>When selecting a circuit breaker for industrial or commercial applications, understanding the technical specifications is crucial. This particular model offers a robust set of features designed to meet demanding electrical requirements.</p><p>Rated for a current of 3 A, this circuit breaker is built to handle moderate current loads efficiently. Its rated voltage stands at 400 V with an insulation voltage of 440 V, ensuring reliable performance under various operational conditions. The device also boasts a rated impulse withstand voltage of 4 kV, providing excellent protection against transient overvoltages typically caused by lightning strikes or switching surges.</p><p>With a breaking capacity of 11.3 kA, it can safely interrupt fault currents without damage to the system. This makes it suitable for installations where safety and reliability are paramount. The unit&amp;#39;s power loss is measured at just 3.6 W, reflecting its energy-efficient design.</p><p>The breaker features three poles and conforms to Curve Type D characteristics, making it ideal for applications involving high inrush currents such as transformers or motor loads. It adheres to international standards IEC/EN 60898-1 and IEC/EN 60947-2, ensuring compliance with global safety and performance benchmarks.</p><p>Durability is another key aspect; the device supports up to 20,000 electrical cycles, highlighting its long-term resilience in frequent operation environments. It operates effectively within ambient temperatures ranging from -25&amp;#176;C to +55&amp;#176;C and can be stored between -40&amp;#176;C and +70&amp;#176;C without compromising integrity.</p><p>Installation is straightforward thanks to its screw clamp terminal type requiring a tightening torque of just 2.8 N-m. With dimensions measuring a width of 52.5 mm, height of 88 mm, and depth of 69 mm, this compact unit fits well into standard enclosures while maintaining an IP20 degree of protection against solid objects larger than 12 mm in diameter.</p><p>The housing comes in RAL 7035 grey—a neutral shade that complements most industrial settings—and the product maintains an IP3 degree of pollution rating suitable for typical indoor environments where dust levels are controlled but not entirely absent.</p><p>Overall, this circuit breaker presents itself as a reliable choice for professionals seeking dependable electrical protection solutions that conform with industry standards while offering ease-of-use through practical design features tailored for real-world application demands.</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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