S203M-K20

Name: S203M-K20
Brand: ABB
SKU: S203M-K20

The ABB S203M-K20 is a 3-pole miniature circuit breaker designed for reliable protection against overcurrents and short circuits. It features a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection, making it suitable for residential, commercial, and industrial use.

Product ModelS203M-K20

Material Number2CDS273001R0487

Product ID80013

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Protection MechanismsThe S203M-K20 features two tripping mechanisms: delayed thermal for overload protection and electromechanical for short circuit protection, ensuring comprehensive safety in various applications.
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2. Versatile ApplicationsSuitable for residential, commercial, and industrial use, making it a versatile solution for diverse electrical needs.
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3. High Breaking CapacityWith breaking capacities up to 10 kA at 230/400 V AC, the S203M-K20 provides robust protection against high current surges.
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4. Compact DesignDesigned to fit DIN rail mounting, the S203M-K20 offers a compact and space-efficient solution for 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

CSA 22.2 No. 235 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 Minimum 12 V AC Minimum 12 V DC

Rated Insulation Voltage (Ui)

acc. to IEC/EN 60664-1 440 V

Rated Impulse Withstand Voltage (Uimp)