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.
2CDS271446R0045 ABB S201MT-B4NA MCB 10kA 1P+N Type B 4A
ABB S201MT-B4NA is a 4 A 1P+N Type B miniature circuit breaker with 10 kA breaking capacity, designed for reliable overload and short-circuit protection in railway, rolling-stock and traction electrical systems.
£63.34
Why Choose the ABB S201MT-B4NA Miniature Circuit Breaker?
The ABB S201MT-B4NA is a specialist 1P+N miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short-circuits. Part of the ABB S200 MT series, it is developed for demanding railway, rolling-stock and traction electrical installations where dependable protection and a switched neutral are required.
Featuring a 4 A rated current, Type B tripping characteristic and 10 kA breaking capacity, the S201MT-B4NA provides reliable protection for low-current distribution, auxiliary and control circuits. Its 1P+N configuration combines protection of the phase conductor with neutral switching, providing convenient isolation within a compact modular device.
The S200 MT range is specifically engineered for rolling-stock applications, combining robust circuit protection with resistance to the mechanical and environmental demands encountered in transportation systems. The S201MT-B4NA is DIN-rail mounted and provides a practical solution for railway auxiliary supplies, control equipment and other circuits requiring compact phase-and-neutral switching.
Key Advantages
- 4 A rated current for low-current circuit protection.
- 1P+N configuration combines phase protection with neutral switching.
- Type B tripping characteristic for circuits with relatively low inrush currents.
- 10 kA breaking capacity provides dependable short-circuit protection.
- Specialist S200 MT design for railway and rolling-stock applications.
- Protects circuits against both overloads and short-circuits.
- DIN-rail mounting supports straightforward integration into electrical distribution and control assemblies.
Key Features
- ABB S200 MT miniature circuit breaker series.
- 1P+N pole configuration.
- 4 A rated current.
- Type B tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Phase conductor protection with switched neutral.
- Designed for overload and short-circuit protection.
- Compact modular construction for space-efficient panel installation.
- DIN-rail mounting for electrical distribution assemblies.
- Developed for demanding rolling-stock and transportation environments.
Reliable Phase and Neutral Circuit Protection for Rolling Stock
Miniature circuit breakers such as the ABB S201MT-B4NA automatically disconnect a circuit when an overload or short-circuit creates excessive current. This helps protect conductors, connected equipment and electrical distribution systems against damage while providing a resettable protection solution for repeated service.
The S201MT-B4NA incorporates a switched neutral alongside the protected phase pole, making it particularly useful where simultaneous phase-and-neutral isolation is required. Its low 4 A rating is well suited to auxiliary, signalling, control and other lower-current circuits found within railway, transportation and industrial electrical systems.
Typical Applications
- Railway and rolling-stock electrical systems.
- Traction auxiliary circuits.
- Low-current control and signalling circuits.
- Phase-and-neutral electrical distribution circuits.
- Industrial control and automation panels.
- Transportation equipment electrical systems.
Technical Specifications
| Series | S200 MT |
|---|---|
| ABB order code | 2CDS271446R0045 |
| Product type | Miniature circuit breaker (MCB) |
| Pole configuration | 1P+N |
| Rated current | 4 A |
| Tripping characteristic | Type B |
| Breaking capacity | 10 kA |
| Function | Overload and short-circuit protection |
| Application | Railway / rolling-stock and traction electrical systems |
| Mounting | DIN rail |
| Product weight | approximately 0.250 kg |
| Pack quantity | 5 pieces |
| ABB EAN identifier | 4016779129923 |
Frequently Asked Questions
What is the ABB S201MT-B4NA used for?
The S201MT-B4NA is used to protect low-current electrical circuits against overloads and short-circuits, particularly in railway, rolling-stock, traction and associated control applications.
What is the rated current of the ABB S201MT-B4NA?
The ABB S201MT-B4NA has a rated current of 4 A.
What does the 1P+N configuration mean?
The 1P+N configuration provides an overcurrent-protected phase pole together with a switched neutral pole, allowing phase and neutral conductors to be disconnected together.
What tripping characteristic does the S201MT-B4NA use?
The breaker uses a Type B tripping characteristic, making it suitable for circuits with relatively low starting and inrush currents.
What is the breaking capacity of the S201MT-B4NA?
The ABB S201MT-B4NA has a 10 kA breaking capacity, providing dependable interruption of short-circuit fault currents within its specified operating conditions.
Trusted Circuit Protection from ABB
ABB S200 MT miniature circuit breakers provide dependable overload and short-circuit protection for demanding electrical installations, combining compact DIN-rail construction with configurations developed for railway, rolling-stock and traction applications.
