S203-D4NA

Name: S203-D4NA
Brand: ABB
SKU: S203-D4NA

Short Product Description The Abb S203-D4NA miniature circuit breaker provides reliable protection with its current limiting design and dual tripping mechanisms. Suitable for residential, commercial, and industrial use, it ensures safe and efficient electrical distribution.

Product ModelS203-D4NA

Material Number2CDS253103R0041

Product ID78929

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Current Limiting DesignThe Abb S203-D4NA features a current limiting design that helps prevent damage to electrical equipment during short circuits, ensuring a safer operation.
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2. Dual Tripping MechanismsEquipped with both delayed thermal tripping and electromechanical tripping mechanisms, this MCB offers comprehensive protection against overloads and short circuits.
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3. Versatile ApplicationsSuitable for a wide range of applications including residential, commercial, and industrial settings, making it a versatile choice for various electrical needs.
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4. Compliance with StandardsCompliant with IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards, ensuring high-quality performance and reliability.

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)