S203M-D50NA

Name: S203M-D50NA
Brand: ABB
SKU: S203M-D50NA

The ABB S203M-D50NA is a 4-pole miniature circuit breaker offering robust short-circuit protection. It features delayed thermal and electromechanical tripping mechanisms, ensuring reliable overload and short-circuit protection. Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards, it is suitable for residential, commercial, and industrial use.

Product ModelS203M-D50NA

Material Number2CDS273103R0501

Product ID78998

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-D50NA provides reliable short-circuit protection with its delayed thermal and electromechanical tripping mechanisms, ensuring the safety of your electrical system.
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2. Compliance with StandardsMeets IEC/EN 60898-1 and IEC/EN 60947-2 standards, making it suitable for a wide range of applications including residential, commercial, and industrial use.
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3. Versatile ConfigurationAvailable in 4-pole configuration, this miniature circuit breaker can handle various electrical demands with ease.
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4. High PerformanceDesigned to handle high currents and short-circuit currents up to 10 kA at 230/400 V AC, ensuring it can handle demanding electrical loads.
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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)