S203M-D63NA

Name: S203M-D63NA
Brand: ABB
SKU: S203M-D63NA

The ABB S203M-D63NA is a current limiting miniature circuit breaker designed for reliable protection in residential, commercial, and industrial settings. It features dual tripping mechanisms for both overload and short circuit protection, ensuring safe and efficient operation.

Product ModelS203M-D63NA

Material Number2CDS273103R0631

Product ID78164

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-D63NA provides comprehensive protection against overloads and short circuits, ensuring the safety of your electrical system.
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2. Dual Tripping MechanismsEquipped with delayed thermal tripping for overload protection and electromechanical tripping for short circuit protection, this MCB offers robust and reliable operation.
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3. Versatile ApplicationSuitable for a wide range of applications, from residential to industrial settings, the S203M-D63NA is a versatile solution for all your electrical needs.
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4. Compact DesignWith its compact design, this MCB fits seamlessly into any electrical panel, saving space and enhancing overall system efficiency.
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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)