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2CDS272445R0041 ABB S202MT-D4 MCB 10kA 2P Type D 4A
ABB S202MT-D4 is a 4 A 2-pole D-characteristic miniature circuit breaker with 10 kA rated short-circuit breaking capacity, designed for reliable circuit protection in demanding railway, traction and industrial applications.
£105.56
Why Choose the ABB S202MT-D4 Miniature Circuit Breaker?
The ABB S202MT-D4 is a robust 2-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding railway, traction and industrial electrical systems. As part of the specialised ABB S200MT miniature circuit breaker series, it combines a 4 A rated current with a D tripping characteristic and a high 10 kA rated short-circuit breaking capacity.
Developed specifically for demanding transportation environments, the S202MT-D4 protects cables and conductors against overload and short-circuit conditions. Its D characteristic is suited to circuits supplying equipment with high starting or inrush currents, while the S200MT range is engineered to meet stringent railway requirements for fire behaviour, shock and vibration.
With a rated current of 4 A, a 2-pole configuration and 10 kA rated breaking capacity, the S202MT-D4 provides dependable protection for control, auxiliary and equipment circuits. Its compact DIN rail format enables straightforward integration into onboard distribution boards and electrical cabinets, while ABB order code 2CDS272445R0041 identifies this specific D-characteristic 4 A version.
Key Advantages
- Specialised miniature circuit breaker for railway and traction applications.
- 4 A rated current with a 2-pole configuration.
- D tripping characteristic suited to equipment with high starting and inrush currents.
- 10 kA rated short-circuit breaking capacity for dependable fault protection.
- Designed for demanding traction, rolling stock and industrial applications.
- Compact two-module DIN rail format for straightforward installation in electrical panels.
Key Features
- ABB S200MT miniature circuit breaker series.
- 4 A rated current.
- 2-pole configuration with both poles protected.
- D tripping characteristic.
- 10 kA breaking capacity according to EN 60898-1.
- 15 kA ultimate short-circuit breaking capacity according to IEC 60947-2 at 230 / 400 V AC.
- 400 V AC rated voltage.
- Energy limiting class 3 for effective fault-current limitation.
- Compact DIN rail construction with IP20 terminal protection.
Reliable Circuit Protection for Railway and Traction Systems
Miniature circuit breakers such as the ABB S202MT-D4 automatically disconnect an electrical circuit when excessive current occurs because of an overload or short circuit. This helps protect cables, conductors and connected electrical equipment while allowing the circuit breaker to be reset after the fault has been identified and corrected.
The ABB S200MT range is specifically designed for railway applications and combines high short-circuit performance with construction suited to demanding rolling stock environments. The D characteristic accommodates high temporary starting currents, making the S202MT-D4 particularly useful for circuits supplying equipment with significant inrush current while maintaining effective overload and short-circuit protection.
Typical Applications
- Railway and rolling stock electrical systems.
- Traction electrical installations.
- Control and auxiliary circuits.
- Equipment with high starting or inrush currents.
- Industrial control panels and switchgear.
- Transportation and automation electrical systems.
Technical Specifications
| Series | S200MT |
|---|---|
| ABB order code | 2CDS272445R0041 |
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Rated current | 4 A |
| Number of poles | 2 |
| Number of protected poles | 2 |
| Tripping characteristic | D |
| Rated voltage | 400 V AC |
| Frequency | 50 / 60 Hz |
| Rated breaking capacity Icn at 230 V AC | 10 kA |
| Rated breaking capacity Icn at 400 V AC | 10 kA |
| Rated ultimate short-circuit breaking capacity Icu at 230 V AC | 15 kA |
| Rated ultimate short-circuit breaking capacity Icu at 400 V AC | 15 kA |
| Rated insulation voltage (Ui) | 440 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Energy limiting class | 3 |
| Overvoltage category | III |
| Pollution degree | 3 |
| Power loss | 3.4 W |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1 and IEC/EN 60947-2 |
| Railway fire protection | R26 / HL3 according to EN 45545 |
| Shock and vibration classification | Category 1, Class A/B according to IEC 61373 |
| Mounting type | DIN rail |
| Width | 2 modular spacings / 35 mm |
| Installation depth | 69 mm |
| Connection capacity, solid conductor | 0.75–35 mm² |
| Connection capacity, stranded conductor | 0.75–25 mm² |
| Operating ambient temperature | -40 to +70 °C |
| Weight | approx. 0.25 kg |
| EAN | 4016779125031 |
Frequently Asked Questions
What is the ABB S202MT-D4 used for?
The ABB S202MT-D4 is a miniature circuit breaker designed to protect electrical circuits against overload and short-circuit currents in demanding railway, traction and industrial applications.
What is the current rating of the S202MT-D4?
The S202MT-D4 has a rated current of 4 A and uses a 2-pole configuration with both poles protected.
What does the D characteristic mean?
The D tripping characteristic is suited to circuits supplying equipment with high starting or inrush currents, allowing normal temporary current surges while providing effective overload and short-circuit protection.
What is the breaking capacity of the ABB S202MT-D4?
The S202MT-D4 has a rated short-circuit breaking capacity of 10 kA according to EN 60898-1 and an ultimate short-circuit breaking capacity of 15 kA according to IEC 60947-2 at 230 / 400 V AC.
Is the ABB S202MT-D4 suitable for railway applications?
Yes. The S202MT-D4 belongs to ABB's S200MT range developed specifically for railway and traction environments, including compliance with demanding fire, smoke, shock and vibration requirements for rolling stock applications.
Trusted Circuit Protection from ABB
ABB S200MT miniature circuit breakers provide dependable overload and short-circuit protection for demanding railway and transportation electrical systems, combining high breaking capacity with robust construction designed for traction environments.
