S203M-C40NA

Name: S203M-C40NA
Brand: ABB
SKU: S203M-C40NA

The ABB System pro M Compact S203M-C40NA is a current-limiting miniature circuit breaker designed for 3-phase applications. It features two tripping mechanisms for overload and short-circuit protection, ensuring comprehensive safety and reliability. Available in various configurations and breaking capacities, this MCB complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards.

Product ModelS203M-C40NA

Material Number2CDS273103R0404

Product ID78179

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Advanced Tripping MechanismsThe S203M-C40NA features both delayed thermal and electromechanical tripping mechanisms, providing robust protection against overloads and short circuits.
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2. Comprehensive SafetyDesigned to meet IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring compliance for residential, commercial, and industrial applications.
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3. Versatile ConfigurationsAvailable in various configurations, including 1P, 1P+N, 2P, 3P, 3P+N, and 4P, to suit diverse electrical needs.
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4. High Breaking CapacityWith a breaking capacity of up to 10 kA at 230/400 V AC, this MCB can handle high short-circuit currents effectively.
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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 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)