S203MT-B40UC

Name: S203MT-B40UC
Brand: ABB
SKU: S203MT-B40UC

The ABB S203MT-B40UC is a reliable miniature circuit breaker designed for DC and AC applications, featuring high short circuit breaking capacity and compliance with major international standards.

Product ModelS203MT-B40UC

Material Number2CDS273065R0405

Product ID79892

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. High Short Circuit Breaking CapacityThe S203MT-B40UC boasts an impressive short circuit breaking capacity, ensuring reliable protection in demanding applications.
2
2. Flexible DC and AC ApplicationsThis MCB is versatile, supporting both DC and AC applications, making it a go-to solution for various industries.
3
3. Compliance with Major StandardsThe product meets and exceeds international standards such as IEC/EN 60947-2, UL 1077, and CSA 22.2 No. 235, ensuring global compatibility.
4
4. Traction Industry SpecificDesigned specifically for the traction industry, the S203MT-B40UC adheres to the French standard NFF16-101/102 (I2-F3), providing specialized protection.
5

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 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)