S203MT-K63UC

Name: S203MT-K63UC
Brand: ABB
SKU: S203MT-K63UC

The ABB S203M-K63UC is a 3P miniature circuit breaker designed for AC and DC applications. It boasts high short-circuit breaking capacity, flexible mounting options, and compliance with major international standards, making it a reliable choice for various electrical installations.

Product ModelS203MT-K63UC

Material Number2CDS273065R0607

Product ID79980

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Short-Circuit Breaking CapacityThe S203M-K63UC has an impressive short-circuit breaking capacity, ensuring reliable protection in high-voltage applications.
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2. Flexible AC and DC ApplicationThis circuit breaker is versatile, supporting both AC and DC systems, making it a versatile solution for diverse electrical needs.
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3. Compliance with Major StandardsIt meets and exceeds compliance with international standards such as IEC/EN 60947-2, UL 1077, and CSA 22.2 No. 235, ensuring safety and reliability.
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4. Flexible Mounting OptionsThe S203M-K63UC offers easy mounting on DIN rails, including TH35-15 and TH35-7.5 mm rails, 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)