S203M-D2NA

Name: S203M-D2NA
Brand: ABB
SKU: S203M-D2NA

The ABB S203M-D2NA miniature circuit breaker is a current limiting device with two tripping mechanisms, providing reliable protection for residential, commercial, and industrial applications. It features a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection.

Product ModelS203M-D2NA

Material Number2CDS273103R0021

Product ID80309

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-D2NA offers comprehensive protection against overloads and short circuits, ensuring the safety of your electrical system.
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2. Dual Tripping MechanismsEquipped with both delayed thermal and electromechanical tripping mechanisms, this circuit breaker provides robust protection in various scenarios.
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3. Versatile ApplicationsSuitable for residential, commercial, and industrial settings, the S203M-D2NA is a versatile solution for diverse electrical needs.
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4. Current Limiting DesignThe current limiting design helps in reducing the impact of electrical surges, ensuring efficient operation and prolonging the lifespan of your electrical equipment.
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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)