2CDS273445R0065 ABB S203MT-B6 MCB 10kA 3P Type B 6A

2CDS273445R0065 ABB S203MT-B6 MCB 10kA 3P Type B 6A

ABB S203MT-B6 is a 6 A three-pole B-characteristic miniature circuit breaker with 10 kA breaking capacity for reliable overload and short-circuit protection in industrial, control, DC and traction-related electrical applications.

SKU: 2CDS273445R0065Alt SKU: S203MTB6MPN: 2CDS273445R0065
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List Price £118.60 ex VAT
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Why Choose the ABB S203MT-B6 Miniature Circuit Breaker?

The ABB S203MT-B6 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical installations. As part of the ABB S200 MT series, it is engineered for industrial, control, DC and traction-related applications requiring dependable circuit protection.

This miniature circuit breaker combines a 6 A rated current, B tripping characteristic and 10 kA rated short-circuit breaking capacity. The B characteristic provides sensitive magnetic tripping for circuits with relatively low inrush currents, making the breaker particularly suitable for control, auxiliary and other electrical loads where rapid fault protection is required.

With its three-pole configuration and compact modular construction, the S203MT-B6 provides coordinated protection across three conductors and is suitable for installation in distribution equipment, control panels and industrial switchgear. ABB order code 2CDS273445R0065 uniquely identifies this 6 A B-characteristic version of the S203MT range.

Key Advantages

  • Reliable overload and short-circuit protection for demanding electrical circuits.
  • 6 A rated current suitable for control, auxiliary and lower-current distribution circuits.
  • Three-pole configuration for coordinated multi-pole protection.
  • B tripping characteristic suited to circuits with relatively low starting and inrush currents.
  • 10 kA breaking capacity provides robust fault-current interruption.
  • Designed for specialised industrial, DC and traction-related applications.
  • Compact modular format simplifies installation in electrical panels and switchgear.

Key Features

  • ABB S200 MT series miniature circuit breaker.
  • 6 A rated current.
  • 3-pole (3P) configuration.
  • B characteristic tripping curve.
  • 10 kA short-circuit breaking capacity.
  • Thermal-magnetic protection against overload and short-circuit conditions.
  • Compact modular construction for electrical distribution equipment.
  • DIN-rail mounting for straightforward panel installation.
  • Suitable for demanding industrial and traction-related electrical systems.
  • ABB order code 2CDS273445R0065.

Reliable Circuit Protection for Industrial Electrical Systems

Miniature circuit breakers such as the ABB S203MT-B6 protect electrical wiring and connected equipment by automatically interrupting the circuit when excessive current occurs. Thermal operation responds to sustained overload conditions, while magnetic operation provides rapid disconnection during short circuits, helping protect conductors and equipment against potentially damaging fault currents.

The B characteristic is intended for circuits where relatively low inrush currents are expected during normal operation. This makes the S203MT-B6 particularly useful for control, auxiliary and general electrical loads, while its three-pole construction enables coordinated protection of suitable multi-conductor circuits in industrial and specialised electrical installations.

Typical Applications

  • Industrial control and auxiliary circuits.
  • DC and traction-related electrical installations.
  • Low-current three-pole distribution circuits.
  • Industrial control panels and switchboards.
  • Automation and machinery electrical systems.
  • Circuits with relatively low starting and inrush currents.
  • OEM machine-building and control applications.

Technical Specifications

Series S200 MT
ABB order code 2CDS273445R0065
Product type Miniature circuit breaker (MCB)
Product group DC / Traction MCB
Number of poles 3
Rated current 6 A
Tripping characteristic B
Rated short-circuit breaking capacity 10 kA
Protection principle Thermal-magnetic
Mounting type DIN rail
Width 3 module units

Frequently Asked Questions

What is the ABB S203MT-B6 used for?

The ABB S203MT-B6 is used to provide overload and short-circuit protection for industrial, control, DC and traction-related electrical circuits.

What is the rated current of the S203MT-B6?

The S203MT-B6 has a rated current of 6 A.

What does the B characteristic mean?

The B tripping characteristic is suited to circuits with relatively low inrush currents, providing sensitive magnetic protection for control, auxiliary and general electrical loads.

What is the breaking capacity of the ABB S203MT-B6?

The S203MT-B6 has a rated short-circuit breaking capacity of 10 kA.

How many poles does the S203MT-B6 have?

The S203MT-B6 is a three-pole (3P) miniature circuit breaker designed to provide coordinated protection across three conductors.

Trusted ABB Circuit Protection

ABB S200 MT miniature circuit breakers provide dependable modular protection for demanding industrial and specialised electrical installations, combining effective overload and short-circuit protection with a compact format for control and distribution systems.