Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CDS273445R0357 ABB S203MT-K5 MCB 10kA 3P Type K 5A
ABB S203MT-K5 is a 5 A three-pole K-characteristic miniature circuit breaker with 10 kA breaking capacity for reliable overload and short-circuit protection of industrial and specialised electrical circuits.
£147.46
Why Choose the ABB S203MT-K5 Miniature Circuit Breaker?
The ABB S203MT-K5 is a robust three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical installations. As part of the specialised ABB S200 MT series, it is suited to industrial, DC and traction-related applications requiring dependable circuit protection in a compact modular format.
This miniature circuit breaker combines a 5 A rated current, K tripping characteristic and 10 kA short-circuit breaking capacity. The K characteristic is particularly suited to circuits supplying inductive equipment with elevated starting currents, helping accommodate normal motor and transformer inrush while maintaining effective protection against sustained overloads and short circuits.
With its three-pole configuration, the S203MT-K5 provides coordinated protection across three conductors and is designed for straightforward integration into distribution boards, control panels and industrial switchgear. ABB order code 2CDS273445R0357 uniquely identifies this 5 A K-characteristic version of the S203MT range.
Key Advantages
- Reliable overload and short-circuit protection for demanding electrical circuits.
- 5 A rated current suitable for industrial control and equipment circuits.
- Three-pole configuration for coordinated multi-pole circuit protection.
- K tripping characteristic suited to loads with elevated starting and inrush currents.
- 10 kA breaking capacity provides robust interruption of short-circuit currents.
- Well suited to circuits supplying motors, transformers and other inductive loads.
- Compact modular construction simplifies installation in electrical panels and switchgear.
Key Features
- ABB S200 MT series miniature circuit breaker.
- 5 A rated current.
- 3-pole (3P) configuration.
- K characteristic tripping curve.
- 10 kA short-circuit breaking capacity.
- Thermal-magnetic protection against overload and short-circuit conditions.
- Designed to accommodate elevated transient starting currents.
- Compact modular construction for electrical distribution equipment.
- DIN-rail mounting for straightforward panel installation.
- ABB order code 2CDS273445R0357.
Reliable Circuit Protection for Inductive Industrial Loads
Miniature circuit breakers such as the ABB S203MT-K5 protect electrical wiring and connected equipment by automatically interrupting a circuit when excessive current occurs. Thermal operation responds to sustained overload conditions, while magnetic operation provides rapid disconnection during short-circuit faults, helping protect conductors and equipment against potentially damaging currents.
The K characteristic is particularly useful where equipment produces elevated but legitimate starting currents during energisation. This makes the S203MT-K5 a practical protection solution for motors, transformers and other inductive loads, while its three-pole construction enables coordinated protection across suitable multi-conductor industrial circuits.
Typical Applications
- Industrial electrical distribution systems.
- DC and traction-related electrical installations.
- Motor control and supply circuits.
- Transformer supply and protection circuits.
- Industrial machinery and automation equipment.
- Control panels and electrical switchboards.
- Circuits supplying inductive loads with elevated inrush currents.
Technical Specifications
| Series | S200 MT |
|---|---|
| ABB order code | 2CDS273445R0357 |
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Number of poles | 3 |
| Rated current | 5 A |
| Tripping characteristic | K |
| 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-K5 used for?
The ABB S203MT-K5 provides overload and short-circuit protection for industrial and specialised electrical circuits, particularly applications containing inductive loads with elevated starting currents.
What is the rated current of the S203MT-K5?
The S203MT-K5 has a rated current of 5 A.
What does the K characteristic mean?
The K tripping characteristic is suited to circuits containing loads with elevated starting or inrush currents, including motors, transformers and other inductive equipment.
What is the breaking capacity of the ABB S203MT-K5?
The S203MT-K5 has a rated short-circuit breaking capacity of 10 kA.
How many poles does the S203MT-K5 have?
The S203MT-K5 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 circuit protection for demanding industrial and specialised electrical installations, combining robust overload and short-circuit protection with tripping characteristics suited to different load profiles.
