S203MT-Z1UC

Name: S203MT-Z1UC
Brand: ABB
SKU: S203MT-Z1UC

The ABB S203MT-Z1UC is a miniature circuit breaker designed for traction and railway applications. It features current limiting and dual tripping mechanisms, ensuring reliable protection against overloads and short circuits. Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards.

Product ModelS203MT-Z1UC

Material Number2CDS273065R0218

Product ID78393

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Protection for Railway SystemsThe ABB S203MT-Z1UC is specifically designed for traction and railway applications, ensuring reliable protection against electrical faults.
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2. Current Limiting MechanismThis circuit breaker features a current limiting mechanism, which helps in reducing the impact of electrical faults and preventing damage to the system.
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3. Dual Tripping MechanismsEquipped with both delayed thermal tripping and electromechanical tripping mechanisms, the S203MT-Z1UC provides comprehensive protection against overloads and short circuits.
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4. Compliance with International StandardsThe product complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring it meets the highest safety and performance requirements.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077

Tripping Characteristic

Rated Operational Voltage

acc. to IEC 60898-1 440 V AC acc. to IEC 60898-1 440 V DC acc. to IEC 60898-1 440 V acc. to IEC 60947-2 440 V AC acc. to IEC 60947-2 440 V DC

Operational Voltage

Maximum (Incl. Tolerance) 462 V AC Maximum (Incl. Tolerance) 500 V DC 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)