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ABB S203MT-K20 Miniature Circuit Breaker 10 kA 3-P 20A 400V K-Curve

Product Code: S203MT-K20

  • Rated current of 20 A for reliable performance
  • Withstands impulse voltage up to 4 kV
  • Breaking capacity of 10kA
  • Screw clamp terminals for secure connections
  • Compact size: 52.5 mm width, IP20 protection
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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 K
Degree of Protection IP20
Depth 69 mm
Height 88 mm
Housing Colour RAL 7035 Grey
Number of Poles 3
Power Loss 8.1 W
Rated Current 20 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 60947-2
Terminal Type Screw Clamp
Tightening Torque 2.8 N-m
Width 52.5 mm

Description

<p>For professionals seeking a reliable and robust circuit protection solution, this 3-pole device offers the technical specifications you need for industrial and commercial applications. With a rated current of 20 A, it is designed to handle moderate loads efficiently while ensuring safety and performance.</p><p>The product boasts a rated impulse withstand voltage of 4 kV, providing excellent resilience against transient overvoltages. Its rated insulation voltage stands at 440 V, with an operational voltage rating of 400 V, making it suitable for various electrical systems. This breaker has a breaking capacity of 11.3 kA, ensuring effective interruption in fault conditions.</p><p>Designed with practicality in mind, the device features screw clamp terminals that support secure connections with a tightening torque of 2.8 N-m. The compact dimensions—52.5 mm width, 88 mm height, and 69 mm depth—allow for easy installation in confined spaces without compromising on functionality.</p><p>Engineered to meet international standards IEC/EN 60947-2, this product adheres to stringent quality norms essential for industrial environments. The IP20 degree of protection indicates its suitability for indoor use where there is minimal risk of dust or water ingress.</p><p>Operating efficiently within an ambient temperature range from -25&amp;#176;C to +55&amp;#176;C and capable of storage between -40&amp;#176;C to +70&amp;#176;C, this unit is versatile across diverse climatic conditions. It features a curve type K characteristic ideal for protecting circuits with inductive loads such as motors.</p><p>Power loss during operation is minimized at just 8.1 W which enhances energy efficiency—a crucial factor in large-scale installations where reducing operational costs is important.</p><p>The housing color RAL 7035 grey ensures that it blends seamlessly into standard electrical panel aesthetics while maintaining durability under various environmental conditions.</p><p>Overall, this circuit breaker delivers dependable performance tailored to meet the demands of modern electrical installations while offering ease-of-use through its straightforward design elements like screw clamp terminals and compact size—all backed by compliance with recognized international safety standards.</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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