S203-D2NA

Name: S203-D2NA
Brand: ABB
SKU: S203-D2NA

The ABB S203-D2NA is a high-performance miniature circuit breaker designed for reliable electrical protection. Featuring advanced tripping mechanisms, it ensures safe and efficient operation in various applications.

Product ModelS203-D2NA

Material Number2CDS253103R0021

Product ID78936

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Advanced Tripping MechanismsThe S203-D2NA boasts two different tripping mechanisms, including delayed thermal tripping, providing enhanced safety and reliability.
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2. High-Performance DesignEngineered for demanding applications, this circuit breaker delivers consistent performance under various conditions.
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3. Compact DesignWith dimensions of 70mm x 69mm x 88mm, the S203-D2NA offers a compact design that fits seamlessly into modern electrical systems.
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4. Current LimitingDesigned to limit current surges, the S203-D2NA protects electrical systems from damage caused by overloads and short circuits.
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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 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)