S203M-D0.5NA

Name: S203M-D0.5NA
Brand: ABB
SKU: S203M-D0.5NA

Short Product Description ABB S203M-D0.5NA Miniature Circuit Breaker - 0.5A, current limiting, delayed thermal and electromechanical tripping, suitable for residential, commercial, and industrial use.

Product ModelS203M-D0.5NA

Material Number2CDS273103R0981

Product ID79250

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Current Limiting DesignThe ABB S203M-D0.5NA is designed to limit current during faults, reducing damage to equipment and ensuring a safer operation.
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2. Dual Tripping MechanismsEquipped with both delayed thermal and electromechanical tripping mechanisms, providing comprehensive protection against overloads and short circuits.
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3. Wide Application RangeSuitable for residential, commercial, and industrial applications, making it a versatile choice for various electrical needs.
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4. High Breaking CapacityWith a breaking capacity of up to 10 kA at 230/400 V AC, it 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)