S203M-Z8UC

Name: S203M-Z8UC
Brand: ABB
SKU: S203M-Z8UC

The ABB S203M-Z8UC is a 3-pole miniature circuit breaker with a 8A current rating, offering reliable protection against overloads and short circuits in residential, commercial, and industrial applications.

Product ModelS203M-Z8UC

Material Number2CDS273061R0408

Product ID79712

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-Z8UC features two tripping mechanisms—delayed thermal for overload protection and electromechanical for short circuit protection—ensuring comprehensive circuit safety.
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2. Compliance StandardsMeets IEC/EN 60898-1 and IEC/EN 60947-2 standards, making it suitable for a wide range of applications.
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3. Compact DesignModular and compact design allows for easy installation in electrical distribution boards, consumer units, and control panels, saving space.
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4. High Breaking CapacityCapable of interrupting up to 10 kA at 230/400 V AC, providing robust short-circuit protection.
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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 60898-1 440 V acc. to IEC 60947-2 440 V AC acc. to IEC 60947-2 440 V DC

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

Input Voltage Type