S203-K20

Name: S203-K20
Brand: ABB
SKU: S203-K20

The ABB S203-K20 is a 3-pole miniature circuit breaker with a 20A current rating, featuring a K curve tripping characteristic. It is designed for residential, commercial, and industrial applications, ensuring reliable protection against overloads and short circuits. Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards, this MCB offers high interrupting capacity and is suitable for DIN rail mounting.

Product ModelS203-K20

Material Number2CDS253001R0487

Product ID80324

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe ABB S203-K20 provides reliable protection against overloads and short circuits, ensuring the safety of your electrical system.
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2. Compliance with StandardsCompliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards, this MCB meets the highest safety and performance requirements.
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3. High Interrupting CapacityWith a high interrupting capacity of 6 kA at 230/400 V AC, this circuit breaker can handle even the most demanding electrical loads.
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4. Versatile ApplicationsSuitable for residential, commercial, and industrial applications, the ABB S203-K20 is a versatile solution for various electrical needs.
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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

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