Short Description: ABB S203-K1.6 Miniature Circuit Breaker - 3P, 1.6A, K Tripping Characteristic. Current limiting, meets IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards.
Product ModelS203-K1.6
Material Number2CDS253001R0257
Product ID80391
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Current Limiting MechanismThe S203-K1.6 features a current limiting mechanism that helps in protecting the circuit from overloads and short circuits, ensuring safe operation.
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2. Compliance with International StandardsThis miniature circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards, making it suitable for residential, commercial, and industrial applications.
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3. Dual Tripping MechanismsIt has two different tripping mechanisms: delayed thermal tripping for overload protection and electromechanical tripping for short circuit protection, providing comprehensive safety.
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4. Compact DesignThe S203-K1.6 is designed to be compact, allowing for efficient use of space. The bottom-fitting auxiliary contact can be mounted to save up to 50% space.
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 Breaking CapacityWith a breaking capacity of up to 6 kA at 230/400 V AC, this MCB is capable of handling high short-circuit currents, ensuring reliable operation under demanding conditions.
