"ABB S203MT-B50: A miniature circuit breaker with 50A, 3P, and 10kA ratings. Perfect for low-voltage applications, providing safety and efficiency in electrical systems."
Product ModelS203MT-B50
Material Number2CDS273445R0505
Product ID77730
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliability and Safety\"The ABB S203MT-B50 offers unparalleled reliability and safety with its robust design and high current rating of 10kA, ensuring your electrical system operates without interruptions.\"
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2. Efficient Operation\"Designed for low-voltage applications, the ABB S203MT-B50 ensures efficient operation, minimizing energy loss and maximizing system performance.\"
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3. Compact Design\"Its compact size makes the ABB S203MT-B50 ideal for space-constrained environments, fitting seamlessly into your electrical setup without compromising on functionality.\"
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4. High Current Rating\"With a current rating of 50A and 10kA, the ABB S203MT-B50 can handle high electrical loads, making it suitable for a variety of industrial and commercial applications.\"
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235
Tripping Characteristic
B
Rated Voltage (Ur)
440 V
Rated Operational Voltage
acc. to IEC 60898-1 400 V acc. to IEC 60898-1 440 V acc. to IEC 60947-2 230 V
Operational Voltage
Maximum (Incl. Tolerance) 253 V AC Maximum (Incl. Tolerance) 66 V DC Minimum 12 V AC Minimum 12 V DC
Rated Insulation Voltage (Ui)
5
5. Brand Trust\"From a trusted brand like ABB, the S203MT-B50 offers peace of mind with its high-quality construction and adherence to industry standards, ensuring long-lasting performance and reliability.\"