S203MT-D40NA

Name: S203MT-D40NA
Brand: ABB
SKU: S203MT-D40NA

The ABB S203MT-D40NA is a miniature circuit breaker (MCB) engineered for superior low-voltage circuit protection. It offers reliable performance, safety, and efficiency in both domestic and industrial settings.

Product ModelS203MT-D40NA

Material Number2CDS273446R0401

Product ID78608

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe ABB S203MT-D40NA provides robust protection against short circuits and overloads, ensuring the safety of electrical installations.
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2. Advanced FeaturesEquipped with innovative features, this MCB offers quick and easy identification of contact positions and captive screws to avoid loss.
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3. Versatile ApplicationSuitable for a wide range of applications, including domestic buildings and industrial settings, making it a versatile choice for various electrical needs.
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4. High-Quality ConstructionManufactured to the highest standards, the ABB S203MT-D40NA ensures durability and reliability, extending its lifespan and performance.
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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, CSA 22.2 No. 235

Tripping Characteristic

Rated Voltage (Ur)

440 V

Rated Operational Voltage

acc. to IEC 60898-1 400 V acc. to IEC 60898-1 440 V acc. to IEC 60947-2 230 V

Operational Voltage

Maximum (Incl. Tolerance) 253 V AC Maximum (Incl. Tolerance) 66 V DC Minimum 12 V AC Minimum 12 V DC

Rated Insulation Voltage (Ui)