S203M-Z32NA

Name: S203M-Z32NA
Brand: ABB
SKU: S203M-Z32NA

The ABB S203M-Z32NA is a 3+NP, Z-rated miniature circuit breaker designed for reliable protection in various applications. It features delayed thermal and electromechanical tripping mechanisms, ensuring both overload and short circuit protection. Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards, it is ideal for residential, commercial, and industrial use.

Product ModelS203M-Z32NA

Material Number2CDS273103R0538

Product ID79632

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Advanced Tripping MechanismsThe S203M-Z32NA features two tripping mechanisms: delayed thermal for overload protection and electromechanical for short circuit protection, ensuring comprehensive safety.
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2. Compliance with International StandardsCompliant with IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for a wide range of applications.
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3. High Breaking CapacityCapable of handling up to 10 kA at 230/400 V AC, providing robust short-circuit protection.
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4. Energy EfficiencyDesigned to minimize power loss, with an operating power loss of 14.4 W per pole, ensuring efficient operation.
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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 60898-1 400 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)