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ABB S203MT-D50 Miniature Circuit Breaker 10 kA 3-P 50A 400V D-Curve

Product Code: S203MT-D50

  • Rated for 50A current handling
  • Breaking capacity of 10kA
  • Screw clamp terminals for secure connections
  • Operates in -25 to 55°C environments
  • Compliant with IEC/EN and UL standards
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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 10000 Cycles
Height 88 mm
Housing Colour RAL 7035 Grey
Number of Poles 3
Power Loss 10.8 W
Rated Current 50 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, UL 1077, CSA 22.2 No. 235
Terminal Type Screw Clamp
Tightening Torque 2.8 N-m
Width 52.5 mm

Description

<p>When considering a robust and reliable circuit breaker for industrial or commercial applications, this model offers a solid choice with its impressive specifications. Designed to handle demanding environments, it provides dependable performance across various settings.</p><p>With a rated current of 50 A and a breaking capacity of 7.5 kA, this device is built to manage substantial electrical loads effectively. It operates at a rated voltage of 400 V with an insulation voltage of 440 V, ensuring safety and efficiency in electrical circuits. Furthermore, the rated impulse withstand voltage stands at 4 kV, offering additional protection against surges.</p><p>The circuit breaker features three poles and includes screw clamp terminals that support secure connections with a tightening torque of 2.8 N-m. Its compact dimensions—52.5 mm in width, 88 mm in height, and 69 mm in depth—allow for easy integration into existing panels without consuming excessive space.</p><p>Engineered to meet international standards such as IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA 22.2 No.235, this product assures compliance with global safety protocols. The degree of protection is rated at IP20 while maintaining an IP3 degree of pollution rating—a testament to its resilience against dust and foreign objects.</p><p>This circuit breaker is designed for both operational temperatures ranging from -25&amp;#176;C to +55&amp;#176;C and storage conditions from -40&amp;#176;C to +70&amp;#176;C ensuring versatility across different climates. Its housing color is RAL 7035 Grey—a neutral tone that blends seamlessly within most industrial settings.</p><p>Featuring a curve type D characteristic allows it to handle high inrush currents typical in motor loads without unnecessary tripping—ideal for specific industrial applications requiring precise control over power distribution systems.</p><p>Electrical durability is another standout feature; the device can endure up to 10,000 cycles which speaks volumes about its longevity under repeated use scenarios making it not just efficient but also cost-effective over time due to reduced maintenance needs or replacements.</p><p>Overall power loss totals are kept minimal at only about ten point eight watts ensuring energy efficiency remains uncompromised throughout operation periods whether short-term switches or long-standing installations alike consistently perform optimally over their lifetime usage span providing peace-of-mind reliability every step along your journey toward achieving perfect balance between technical requirements met alongside practical functionality delivered right where needed most directly impacting bottom line success positively through superior quality products like these ones today!</p>
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