S203MTR-Z3

Name: S203MTR-Z3
Brand: ABB
SKU: S203MTR-Z3

The ABB S203MT-Z3 is a high-performance miniature circuit breaker designed for traction and railway applications. It features a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection, ensuring reliable operation in harsh environments.

Product ModelS203MTR-Z3

Material Number2CDS273447R0318

Product ID80498

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe ABB S203MT-Z3 is designed to provide reliable protection for your systems, meeting the stringent standards of IEC/EN 60898-1 and IEC/EN 60947-2.
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2. Versatile ApplicationIdeal for traction and railway applications, this miniature circuit breaker is engineered to withstand the demands of these industries, ensuring continuous operation.
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3. Advanced Tripping MechanismsEquipped with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection, this breaker offers comprehensive safety features.
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4. High-Quality DesignConstructed with high-quality materials, the S203MT-Z3 ensures durability and longevity, making it a reliable choice for critical applications.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

IEC/EN 60947-2

Tripping Characteristic

Rated Voltage (Ur)

440 V

Rated Operational Voltage

440 V AC acc. to IEC 60898-1 440 V acc. to IEC 60947-2 240 V AC

Operational Voltage

Minimum 12 V AC / 12 V DC

Rated Insulation Voltage (Ui)

acc. to IEC/EN 60664-1 440 V