S203MT-D20

Name: S203MT-D20
Brand: ABB
SKU: S203MT-D20

The ABB S203MT-D20 is a 3-pole miniature circuit breaker designed for traction and railway applications. It provides high installation density, ease of use, and cost-effectiveness, ensuring reliable protection against overloads and short circuits.

Product ModelS203MT-D20

Material Number2CDS273445R0201

Product ID79516

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Installation DensityThe S203MT-D20 is designed to maximize space in electrical panels, making it ideal for applications where space is limited.
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2. Ease of UseWith its intuitive design, the S203MT-D20 is easy to install and maintain, reducing downtime and increasing efficiency.
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3. Cost-EffectivenessThis circuit breaker offers a cost-effective solution without compromising on performance, making it a smart choice for budget-conscious projects.
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4. Reliable ProtectionThe S203MT-D20 provides reliable protection against overloads and short circuits, ensuring the safety of your electrical system.
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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)