S203M-Z8

Name: S203M-Z8
Brand: ABB
SKU: S203M-Z8

Short Description: ABB S203M-Z8 Miniature Circuit Breaker - 3P - Z - 8A. Current limiting, thermal and electromechanical tripping mechanisms for overload and short circuit protection. Meets IEC/EN 60898-1 and IEC/EN 60947-2 standards.

Product ModelS203M-Z8

Material Number2CDS273001R0408

Product ID80504

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Compliance with International StandardsThe ABB S203M-Z8 complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring it meets the highest safety and performance requirements for residential, commercial, and industrial applications.
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2. Dual Tripping MechanismsEquipped with both delayed thermal tripping for overload protection and electromechanical tripping for short circuit protection, providing comprehensive safety and reliability.
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3. High Breaking CapacityOffers a high breaking capacity of up to 10 kA at 230/400 V AC, ensuring reliable operation under various electrical conditions.
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4. Energy EfficiencyDesigned to minimize power loss, with an energy limiting class of 20,000 cycles, making it an efficient choice for long-term use.

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)