S203M-K50

Name: S203M-K50
Brand: ABB
SKU: S203M-K50

The ABB S203M-K50 is a 3-pole miniature circuit breaker designed for 50 A, compatible with both DC and AC applications. It features high short-circuit breaking capacity and meets international standards for safety and performance.

Product ModelS203M-K50

Material Number2CDS273001R0577

Product ID77921

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Versatile ApplicationThe S203M-K50 is designed to work seamlessly with both DC and AC systems, making it a versatile choice for a wide range of applications.
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2. High Short-Circuit Breaking CapacityWith a rated short-circuit breaking capacity of up to 10 kA, the S203M-K50 ensures reliable protection against short circuits in various voltage conditions.
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3. Compliance with International StandardsThe product complies with major international standards such as IEC/EN 60947-2 and IEC/EN 60898-1, ensuring it meets the highest safety and performance requirements.
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4. Flexible Mounting OptionsThe S203M-K50 can be easily mounted on DIN rails using TH35-7.5 or TH35-15 mounting rails, providing flexibility in installation.

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)