S203-Z63

Name: S203-Z63
Brand: ABB
SKU: S203-Z63

The ABB S203-Z63 is a current-limiting miniature circuit breaker featuring fast breaking times (2.5 - 3.5 msec). It offers a unique bus connection system and a wide range of accessories, making it suitable for various electrical applications.

Product ModelS203-Z63

Material Number2CDS253001R0608

Product ID79099

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Current LimitingThe S203-Z63 is designed to limit the current during an electrical fault, ensuring safe and controlled shutdown.
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2. Fast Breaking TimeWith a fast breaking time of 2.5 - 3.5 msec, this circuit breaker provides quick and reliable protection against electrical surges.
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3. Unique Bus Connection SystemThe S203-Z63 features a unique bus connection system, simplifying installation and enhancing overall system efficiency.
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4. Wide Range of AccessoriesAvailable with a variety of accessories, this circuit breaker can be easily integrated into various electrical systems.
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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

IEC/EN 60898-1 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

Rated Insulation Voltage (Ui)

acc. to IEC/EN 60664-1 440 V

Rated Impulse Withstand Voltage (Uimp)

4 kV at 2000 m 5 kV at Sea Level 6.2 kV