"ABB S203-K1NA: Reliable miniature circuit breaker for low-voltage applications. Failsafe bi-directional terminal and high interrupting rating for safe electrical protection."
Product ModelS203-K1NA
Material Number2CDS253103R0217
Product ID79836
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable Protection\"The ABB S203-K1NA offers reliable protection against electrical faults, ensuring your system operates safely and efficiently.\"
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2. High Interrupting Rating\"With an interrupting rating of 10 kA, this circuit breaker can handle high current surges, providing robust protection against electrical overloads.\"
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3. Failsafe Bi-Directional Terminal\"The failsafe bi-directional terminal ensures secure and easy connections, reducing the risk of electrical accidents and making maintenance simpler.\"
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4. Compact Design\"Designed for compact spaces, the ABB S203-K1NA is ideal for a variety of low-voltage applications, including residential and commercial settings.\"
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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
IEC/EN 60898-1 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 60947-2 440 V AC
Operational Voltage
Maximum (Incl. Tolerance) 440 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
5. Compliance and Certification\"Compliant with UL1077 standards, the ABB S203-K1NA meets stringent safety requirements, providing you with peace of mind and regulatory compliance.\"
