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.
ABB S202MT-K4 MCB – S200M – 2P – K – 4A
ABB S202MT-K4 miniature circuit breaker with 4 A rated current, K characteristic, 2 pole configuration and 10 kA breaking capacity for railway and industrial circuit protection.
£105.56
Why Choose the ABB S202MT-K4 Miniature Circuit Breaker?
The ABB S202MT-K4 is a high performance two pole miniature circuit breaker (MCB) designed specifically for railway, traction and industrial electrical systems. As part of the specialist ABB S200MT series, it provides dependable overload and short circuit protection whilst meeting the demanding reliability and safety requirements of rolling stock and rail infrastructure. The S200MT range is classified to NF F 16-101/102 Exigence 3, making it suitable for installation throughout railway vehicles.
The S200MT range incorporates separate thermal and electromagnetic tripping mechanisms to provide accurate overload protection and rapid fault clearance. Its current limiting construction helps minimise fault energy, protecting electrical equipment, wiring and connected loads whilst improving system reliability. All S200MT miniature circuit breakers are compatible with ABB System pro M Compact accessories for flexible installation and signalling.
Featuring a 4 A rated current, K characteristic tripping curve and 2 pole configuration, the ABB S202MT-K4 is ideally suited to protecting motors, transformers and other inductive loads with higher inrush currents. Its compact DIN rail mounted design enables straightforward installation in railway cabinets, industrial control panels and OEM electrical equipment.
Key Advantages
- Compact two pole miniature circuit breaker for railway and industrial applications.
- 4 A rated current for dependable circuit protection.
- K characteristic tripping curve for inductive loads with higher inrush currents.
- 2 pole configuration for complete circuit isolation.
- 10 kA breaking capacity for reliable fault protection.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB S200MT miniature circuit breaker series.
- 4 A rated current.
- K characteristic tripping curve.
- 2 pole configuration.
- 10 kA rated short circuit breaking capacity.
- Thermal overload protection.
- Electromagnetic short circuit protection.
- DIN rail mounting for rapid installation.
Reliable Protection for Motor and Inductive Circuits
The ABB S202MT-K4 automatically disconnects electrical circuits during overload or short circuit conditions, helping protect wiring, equipment and connected loads. The K characteristic is intended for circuits with higher starting currents, making it ideal for motors, transformers, solenoids and other inductive equipment.
Designed specifically for railway applications, the S200MT range complies with IEC/EN 60947-2 and is engineered to deliver dependable operation in demanding transport environments. Its robust construction and compact footprint make it equally suitable for industrial automation and OEM machinery.
Typical Applications
- Railway rolling stock electrical systems.
- Traction auxiliary circuits.
- Motor and transformer protection.
- Industrial automation panels.
- Power distribution equipment.
- OEM machinery and electrical cabinets.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 4 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S202MT-K4 | |
| Manufacturer part number | 2CDS272006R0337 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 4 A | |
| Tripping characteristic | K | |
| Number of poles | 2 | |
| Number of protected poles | 2 | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Frequency | 50 / 60 Hz | |
| Rated short circuit breaking capacity | 10 kA | |
| Rated ultimate short circuit breaking capacity | 15 kA | |
| Protection rating | IP20 (IP40 when installed in an enclosure with cover) | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 35 × 69 mm | |
| Weight | approx. 0.25 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S202MT-K4 used for?
It protects electrical circuits against overloads and short circuits in railway, traction and industrial applications, particularly circuits with higher inrush currents.
What is the rated current of this miniature circuit breaker?
The ABB S202MT-K4 has a 4 A rated current.
What does the K characteristic mean?
The K characteristic is intended for circuits with higher starting currents, making it suitable for motors, transformers and other inductive electrical loads.
What is the short circuit breaking capacity?
The breaker provides a 10 kA rated short circuit breaking capacity with a rated ultimate breaking capacity of 15 kA.
How is the breaker installed?
The unit is designed for installation on a standard 35 mm DIN rail inside railway cabinets, electrical distribution boards and industrial control panels.
Trusted by Railway Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway operators, panel builders and industrial engineers for dependable circuit protection, compact installation and long service life in demanding environments.
