"ABB S203MR-K8: A 3-pole miniature circuit breaker with 8 A rated current, 10 kA short-circuit capacity, and high-performance design for safe and efficient electrical systems."
Product ModelS203MR-K8
Material Number2CDS273437R0407
Product ID78235
Stock on Request
Last updated: 8/29/2026
Key Features
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1. High PerformanceThe ABB S203MR-K8 is designed to provide high-performance operation, ensuring reliable and efficient electrical system management.
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2. Safety FeaturesEquipped with a 10 kA short-circuit capacity, this circuit breaker offers enhanced safety and protection against electrical surges.
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3. Durable DesignConstructed with durable materials, the S203MR-K8 is built to last, providing long-term reliability in demanding electrical environments.
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4. Versatile ApplicationSuitable for a wide range of applications, including industrial and commercial settings, this breaker ensures compatibility with various electrical systems.
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077
Tripping Characteristic
K
Rated Operational Voltage
acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 400 V AC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp)
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Input Voltage Type
5. Efficient OperationWith its efficient design, the S203MR-K8 minimizes energy loss and maximizes system performance, making it an ideal choice for modern electrical installations.
