2CDS273445R0061 ABB S203MT-D6 MCB 10kA 3P Type D 6A

2CDS273445R0061 ABB S203MT-D6 MCB 10kA 3P Type D 6A

ABB S203MT-D6 is a 6 A three-pole Type D miniature circuit breaker with 10 kA short-circuit breaking capacity for dependable industrial and traction-related circuit protection.

SKU: 2CDS273445R0061Alt SKU: S203MTD6MPN: 2CDS273445R0061
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List Price £188.43 ex VAT
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Manufacturer Lead Time Estimated Delivery 14 weeks
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Why Choose the ABB S203MT-D6 Miniature Circuit Breaker?

The ABB S203MT-D6 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical systems. Part of ABB's traction-focused circuit protection range, it is suited to industrial, transportation and railway applications requiring dependable protection of low-current circuits.

The S203MT-D6 combines thermal-magnetic protection with a Type D tripping characteristic. Type D protection is particularly suitable for circuits supplying equipment with high starting or inrush currents, helping reduce unwanted magnetic tripping during normal start-up while maintaining effective overload and short-circuit protection.

With a rated current of 6 A, three protected poles and a rated short-circuit breaking capacity of 10 kA, the S203MT-D6 provides robust protection for demanding low-current circuits. Its modular construction supports convenient integration into industrial control panels, auxiliary systems and railway or traction equipment.

Key Advantages

  • 6 A rated current for protection of low-current electrical circuits.
  • Three-pole configuration provides protection across three conductors.
  • Type D tripping characteristic suited to circuits with high starting or inrush currents.
  • 10 kA short-circuit breaking capacity for dependable fault protection.
  • Thermal-magnetic operation provides overload and short-circuit protection.
  • Designed for demanding industrial, DC and traction-related applications.

Key Features

  • ABB S203MT series circuit breaker.
  • 6 A rated current.
  • Three-pole miniature circuit breaker.
  • Type D thermal-magnetic tripping characteristic.
  • 10 kA short-circuit breaking capacity.
  • Designed for reliable overload and short-circuit protection.
  • Suitable for circuits supplying loads with high starting currents.
  • Compact modular construction for control and distribution assemblies.

Reliable Protection for High-Inrush Circuits

Miniature circuit breakers such as the ABB S203MT-D6 protect electrical circuits, conductors and connected equipment against overload and short-circuit conditions. The thermal-magnetic operating principle disconnects the protected circuit when defined overcurrent conditions occur, helping reduce the risk of damage to wiring and electrical equipment.

The combination of a 6 A current rating, Type D characteristic and 10 kA short-circuit breaking capacity makes the S203MT-D6 suitable for low-current circuits where connected equipment can produce substantial short-duration starting currents. Its three-pole configuration also supports multi-conductor circuits within industrial, railway and traction-related installations.

Typical Applications

  • Railway and rolling-stock electrical systems.
  • Traction and transportation equipment.
  • Industrial control and auxiliary circuits.
  • Circuits supplying equipment with high starting currents.
  • Machinery and automation equipment.
  • Electrical distribution and protection panels.

Technical Specifications

ABB order code 2CDS273445R0061
Product type Miniature circuit breaker (MCB)
Product group DC / Traction MCB
Rated current 6 A
Number of poles 3
Protected poles 3
Tripping characteristic Type D
Rated short-circuit breaking capacity 10 kA
Protection principle Thermal-magnetic

Frequently Asked Questions

What is the ABB S203MT-D6 used for?

The S203MT-D6 is a three-pole miniature circuit breaker designed to protect electrical circuits against overload and short-circuit conditions, including circuits supplying equipment with high starting currents in industrial, railway and traction-related applications.

What is the rated current of the S203MT-D6?

The ABB S203MT-D6 has a rated current of 6 A.

What is the breaking capacity of the S203MT-D6?

The ABB S203MT-D6 has a rated short-circuit breaking capacity of 10 kA.

What does the Type D characteristic mean?

The Type D tripping characteristic is suited to circuits with high starting or inrush currents, allowing appropriate short-duration start-up currents while maintaining overload and short-circuit protection.

How many poles does the ABB S203MT-D6 have?

The S203MT-D6 is a three-pole MCB, providing protection across three conductors.

Trusted Circuit Protection from ABB

ABB miniature circuit breakers provide dependable overload and short-circuit protection for demanding electrical installations, with the S203MT-D6 combining three-pole protection, a Type D characteristic and a 10 kA breaking capacity for industrial and traction-related applications.