1. Reliable Electrical ProtectionThe ABB S203-K50 circuit breaker offers a 10kA breaking capacity, ensuring robust protection for your electrical system.
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2. Versatile ApplicationDesigned for 3-pole applications, this circuit breaker is suitable for a variety of electrical configurations, including 480Y/277 VAC systems.
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3. High Current RatingWith a 50A rating, the S203-K50 is capable of handling high current demands, making it ideal for heavy-duty electrical applications.
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4. UL1077 CertificationMeets UL1077 standards, ensuring compliance with safety regulations and providing peace of mind for your electrical installations.
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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. Durable ConstructionBuilt to last, the S203-K50 is designed with durability in mind, ensuring long-lasting performance and minimal maintenance requirements.
