The ABB S203-K25NA is a UL1077 compliant, 3-pole plus neutral mini circuit breaker, offering reliable electrical protection for a variety of applications.
Product ModelS203-K25NA
Material Number2CDS253103R0517
Product ID80207
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable ProtectionThe ABB S203-K25NA provides dependable electrical protection, ensuring your equipment and systems are safeguarded against overcurrents and short circuits.
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2. UL1077 CompliantDesigned to meet UL1077 standards, this circuit breaker ensures compliance with industry regulations, providing a high level of safety and reliability.
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3. 3-Pole Plus Neutral ConfigurationThe 3-pole plus neutral configuration offers comprehensive protection, covering all phases and neutral lines, making it suitable for a wide range of applications.
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4. Compact DesignThe mini circuit breaker design makes it easy to integrate into various electrical systems, providing a compact solution without compromising on performance.
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
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5. High Interrupting RatingWith an interrupting rating of 6 kA (DC) and 10 kA, the ABB S203-K25NA can handle high current surges, ensuring reliable operation under demanding conditions.
