S203M-K0.5NA

Name: S203M-K0.5NA
Brand: ABB
SKU: S203M-K0.5NA

The ABB S203M-K0.5NA is a compact, current-limiting miniature circuit breaker designed for reliable overload and short circuit protection. It features dual tripping mechanisms and is suitable for various applications, including residential, commercial, and industrial settings.

Product ModelS203M-K0.5NA

Material Number2CDS273103R0157

Product ID78915

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-K0.5NA offers dual tripping mechanisms, ensuring reliable protection against both overload and short circuits.
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2. Compact DesignIts compact design makes it ideal for space-saving installations, reducing the need for additional mounting hardware.
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3. Versatile ApplicationsSuitable for a wide range of applications, including residential, commercial, and industrial settings, making it a versatile choice for various electrical systems.
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4. Current LimitingThe breaker is designed to limit current flow during an overload, preventing damage to the electrical system and reducing the risk of fire.
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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)