S203M-Z8NA

Name: S203M-Z8NA
Brand: ABB
SKU: S203M-Z8NA

The ABB S203M-Z8NA is a versatile miniature circuit breaker designed for various applications. It features current-limiting technology, dual tripping mechanisms, and high breaking capacities, ensuring reliable protection against overloads and short circuits.

Product ModelS203M-Z8NA

Material Number2CDS273103R0408

Product ID81031

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Current Limiting TechnologyThe S203M-Z8NA employs current-limiting technology to minimize damage during short circuits, ensuring the integrity of your electrical system.
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2. Dual Tripping MechanismsEquipped with both delayed thermal and electromechanical tripping mechanisms, this MCB provides comprehensive protection against overloads and short circuits.
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3. High Breaking CapacitiesWith breaking capacities up to 10 kA at 230/400 V AC, the S203M-Z8NA offers robust protection for a wide range of applications.
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4. Compliance with International StandardsThe S203M-Z8NA 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 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)