"ABB S203MR-K1: A high-performance, 3-pole miniature circuit breaker with 10 kA interrupting capacity, suitable for reliable protection in various electrical applications."
Product ModelS203MR-K1
Material Number2CDS273437R0217
Product ID80471
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable Protection\"The ABB S203MR-K1 offers robust protection against short circuits, ensuring the safety of your electrical system with its 10 kA interrupting capacity.\"
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2. Versatile Application\"Ideal for a wide range of electrical applications, the S203MR-K1 provides reliable protection in both residential and commercial settings.\"
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3. High Performance\"With a tripping characteristic of K, this MCB ensures fast and efficient operation in case of a fault, minimizing downtime and ensuring continuous power supply.\"
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4. Compliance and Standards\"Compliant with CSA 22.2 No. 235, IEC/EN 60947-2, and UL 1077 standards, the S203MR-K1 meets the highest industry standards for safety and performance.\"
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
5. Environmental Durability\"Operable in ambient air temperatures ranging from -25°C to +55°C, the S203MR-K1 is designed to withstand various environmental conditions, ensuring consistent performance over time.\"
