"ABB S203MR-K5: A 3-pole miniature circuit breaker with K tripping characteristic, rated for 5 A. Meets IEC and UL standards for safety and performance in low-voltage applications."
Product ModelS203MR-K5
Material Number2CDS273437R0357
Product ID80390
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliability and Safety\"The ABB S203MR-K5 is designed to ensure reliable operation and safety in low-voltage applications. It meets stringent IEC and UL standards, providing peace of mind for your electrical systems.\"
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2. Efficient Design\"With its compact design, the ABB S203MR-K5 is perfect for space-constrained installations. Its modular DIN rail mounting makes it easy to integrate into your existing electrical setup.\"
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3. Versatile Application\"Ideal for a wide range of low-voltage applications, the ABB S203MR-K5 is versatile and adaptable to various electrical needs. Whether it's residential, commercial, or industrial use, this MCB delivers.\"
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4. High Performance\"Featuring a tripping characteristic of K, the ABB S203MR-K5 ensures high performance and efficient operation. Its 10 kA interrupting rating and 5 A rated current make it suitable for demanding electrical environments.\"
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. Compliance and Certifications\"Compliant with IEC/EN 60947-2 and UL 1077 standards, the ABB S203MR-K5 guarantees compliance with global safety regulations. This ensures that your electrical system meets all necessary safety requirements.\"
