ABB S203MR-K4: 3-pole, 4 A miniature circuit breaker with 10 kA interrupting capacity, suitable for various electrical applications.
Product ModelS203MR-K4
Material Number2CDS273437R0337
Product ID80358
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. High PerformanceThe ABB S203MR-K4 offers a high interrupting capacity of 10 kA, ensuring reliable operation in electrical systems.
2
2. Versatile ApplicationDesigned for 3-pole configurations, this MCB is suitable for a wide range of electrical applications, including residential and commercial settings.
3
3. Safety FeaturesWith a tripping characteristic of K, this MCB provides quick and efficient tripping in case of short circuits, ensuring safety and minimizing damage.
4
4. Environmental CompatibilityThe S203MR-K4 operates within an ambient air temperature range of -25°C to +55°C and meets the RoHS requirements, making it environmentally friendly.
5
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. Durable ConstructionBuilt with high-quality materials, this MCB has a durable construction that withstands mechanical stress and environmental conditions, ensuring long-lasting performance.
