S203MT-C20NA

Name: S203MT-C20NA
Brand: ABB
SKU: S203MT-C20NA

The ABB S203MT-C20NA is a 3-pole, 20A miniature circuit breaker designed for traction and railway applications. It features a C curve and meets IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring high reliability and safety in rail systems.

Product ModelS203MT-C20NA

Material Number2CDS273446R0204

Product ID78570

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High ReliabilityDesigned for traction and railway applications, the S203MT-C20NA ensures reliable operation in demanding environments.
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2. Compliance with StandardsMeets IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring compliance with industry regulations.
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3. Safety FeaturesEquipped with current limiting and electromechanical tripping mechanisms for enhanced safety against short circuits and overloads.
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4. Versatile ConfigurationAvailable in various configurations, including 3P and 3P+N, to suit different system requirements.
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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)