S203MT-K40UC

Name: S203MT-K40UC
Brand: ABB
SKU: S203MT-K40UC

The ABB S203MT-K40UC is a 3-pole, 40A miniature circuit breaker with current limiting, suitable for residential, commercial, and industrial use. It meets IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring reliable protection against overloads and short circuits.

Product ModelS203MT-K40UC

Material Number2CDS273065R0557

Product ID80862

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe ABB S203MT-K40UC provides reliable protection against overloads and short circuits, ensuring the safety of your electrical system.
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2. Current LimitingThis miniature circuit breaker features current limiting, which helps in reducing the impact of short circuits and preventing damage to your electrical equipment.
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3. Compliance with StandardsThe product meets IEC/EN 60898-1 and IEC/EN 60947-2 standards, making it suitable for a wide range of applications including residential, commercial, and industrial use.
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4. Versatile Mounting OptionsThe S203MT-K40UC can be mounted on DIN rails (TH35-7.5 or TH35-15) according to IEC 60715, providing flexibility in installation.
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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 60898-1 440 V AC acc. to IEC 60898-1 440 V DC acc. to IEC 60898-1 440 V acc. to IEC 60947-2 440 V AC acc. to IEC 60947-2 440 V DC

Operational Voltage

Maximum (Incl. Tolerance) 462 V AC Maximum (Incl. Tolerance) 500 V DC 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)