Products

ABB S203MT-D25 Miniature Circuit Breaker 10 kA 3-P 25A 400V D-Curve

Product Code: S203MT-D25

  • Rated Current: 25 A, Voltage: 400 V
  • Breaking Capacity of 10kA
  • Screw Clamp Terminals for secure connection
  • Complies with IEC/EN 60898-1 & IEC/EN 60947-2
  • Operates in -25 to 55°C, stores at -40 to 70°C
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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 9.6 W
Rated Current 25 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 it comes to selecting a reliable and efficient circuit breaker for industrial or commercial applications, understanding the technical specifications is crucial. This product offers a robust solution with its balanced features tailored for demanding environments.</p><p>Rated at 25 A, this circuit breaker is designed to handle significant electrical loads while maintaining stability and safety. It boasts a rated impulse withstand voltage of 4 kV, ensuring resilience against voltage spikes that may occur in various operational settings. With a rated insulation voltage of 440 V and a rated operational voltage of 400 V, it provides ample protection against electrical faults.</p><p>The power loss is kept minimal at just 9.6 W, which contributes to energy efficiency—a critical factor for cost-conscious operations. Its breaking capacity stands at an impressive 11.3 kA, offering effective interruption of fault currents without compromising system integrity.</p><p>This device features three poles, making it suitable for three-phase systems commonly found in industrial setups. The degree of protection is marked as IP20, indicating solid object protection but requiring additional measures if liquid exposure is anticipated.</p><p>Installation and maintenance are simplified with screw clamp terminals that ensure secure connections under a tightening torque of 2.8 N-m. The compact design dimensions—52.5 mm width, 88 mm height, and 69 mm depth—make it adaptable for various installation spaces without sacrificing performance.</p><p>Compliance with IEC/EN standards (60898-1 and 60947-2) underscores its reliability and adherence to international safety norms. Operating effectively within frequencies of both 50 Hz and 60 Hz ensures compatibility across different regions&amp;#39; power systems.</p><p>Durability is assured with an electrical lifespan of up to 20,000 cycles—a testament to its robust construction suited for long-term use even under frequent operation conditions.</p><p>The curve type D characteristic allows it to manage high inrush currents typical in motor start-ups or transformer energizing scenarios without nuisance tripping.</p><p>Designed for diverse environmental conditions, this breaker operates efficiently from -25&amp;#176;C to +55&amp;#176;C while being capable of storage between -40&amp;#176;C and +70&amp;#176;C without degradation in performance or safety standards.</p><p>Finished in RAL 7035 grey housing color adds an aesthetic uniformity when integrated into existing panels or enclosures while ensuring visibility during inspections or maintenance tasks.</p><p>In summary, this circuit breaker combines essential features such as reliability under high current loads, compliance with rigorous standards, energy efficiency through low power loss—all packaged within a user-friendly design ideal for professional settings that demand precision engineering solutions tailored specifically towards their unique requirements.</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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