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2CDS273445R0305 ABB S203MT-B30 MCB 10kA 3P Type B 30A
ABB S203MT-B30 is a 30 A three-pole Type B miniature circuit breaker with 10 kA short-circuit breaking capacity for dependable industrial and traction-related circuit protection.
£100.58
Why Choose the ABB S203MT-B30 Miniature Circuit Breaker?
The ABB S203MT-B30 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 electrical circuits.
The S203MT-B30 combines thermal-magnetic protection with a Type B tripping characteristic. Type B protection is suited to circuits with relatively low inrush currents, providing sensitive magnetic operation for appropriate resistive and general-purpose electrical loads while maintaining effective overload and short-circuit protection.
With a rated current of 30 A, three protected poles and a rated short-circuit breaking capacity of 10 kA, the S203MT-B30 provides robust protection for electrical circuits. Its modular construction supports convenient integration into industrial control panels, auxiliary systems and railway or traction equipment.
Key Advantages
- 30 A rated current for dependable electrical circuit protection.
- Three-pole configuration provides protection across three conductors.
- Type B tripping characteristic suited to circuits with relatively low 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.
- 30 A rated current.
- Three-pole miniature circuit breaker.
- Type B thermal-magnetic tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Designed for reliable overload and short-circuit protection.
- Suitable for appropriate general-purpose circuits with relatively low inrush currents.
- Compact modular construction for control and distribution assemblies.
Reliable Protection for Electrical Circuits
Miniature circuit breakers such as the ABB S203MT-B30 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 30 A current rating, Type B characteristic and 10 kA short-circuit breaking capacity makes the S203MT-B30 suitable for circuits where sensitive and dependable protection is required. Its three-pole configuration also makes it well suited to 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.
- Electrical distribution and protection panels.
- General-purpose circuits with relatively low inrush currents.
- Automation and control equipment.
Technical Specifications
| ABB order code | 2CDS273445R0305 |
|---|---|
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Rated current | 30 A |
| Number of poles | 3 |
| Protected poles | 3 |
| Tripping characteristic | Type B |
| Rated short-circuit breaking capacity | 10 kA |
| Protection principle | Thermal-magnetic |
Frequently Asked Questions
What is the ABB S203MT-B30 used for?
The S203MT-B30 is a three-pole miniature circuit breaker designed to protect electrical circuits against overload and short-circuit conditions, including circuits in industrial, railway and traction-related applications.
What is the rated current of the S203MT-B30?
The ABB S203MT-B30 has a rated current of 30 A.
What is the breaking capacity of the S203MT-B30?
The ABB S203MT-B30 has a rated short-circuit breaking capacity of 10 kA.
What does the Type B characteristic mean?
The Type B tripping characteristic is suited to circuits with relatively low inrush currents, providing sensitive magnetic operation for appropriate resistive and general-purpose electrical loads.
How many poles does the ABB S203MT-B30 have?
The S203MT-B30 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-B30 combining three-pole protection, a Type B characteristic and a 10 kA breaking capacity for industrial and traction-related applications.
