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ABB S202MT-K50H01 MCB – S200M – 2P – K – 50A
ABB S202MT-K50H01 2-pole 50A K curve miniature circuit breaker with 10 kA breaking capacity for industrial, railway and automation circuit protection.
Why Choose the ABB S202MT-K50H01 Miniature Circuit Breaker?
The ABB S202MT-K50H01 is a robust 2-pole miniature circuit breaker (MCB) from the ABB S200MT series, designed to provide reliable overload and short circuit protection in demanding electrical installations. With a K characteristic trip curve, this breaker is well suited to circuits with moderate inrush currents, including motor, transformer and inductive load applications.
Engineered for industrial, railway and traction environments, the S202MT-K50H01 combines ABB’s proven current limiting protection technology with a compact DIN rail mounted design. Its thermal and magnetic trip mechanisms help safeguard cables, components and connected equipment from electrical faults.
With a 50 A current rating, 2-pole configuration and 10 kA breaking capacity, the ABB S202MT-K50H01 is ideal for installations requiring dependable circuit protection, compact panel integration and long-term operational reliability.
Key Advantages
- High quality 2-pole miniature circuit breaker for industrial and traction applications.
- 50 A rated current for dependable circuit protection.
- K characteristic suited to motor and inductive load circuits.
- 10 kA breaking capacity for reliable short circuit protection.
- Compact DIN rail mounted design for efficient panel installation.
- ABB engineering quality for demanding electrical environments.
Key Features
- ABB S200MT miniature circuit breaker series.
- Model: S202MT-K50H01.
- 50 A rated current.
- 2-pole configuration.
- K characteristic tripping curve.
- 10 kA short circuit breaking capacity.
- Thermal tripping for overload protection.
- Magnetic tripping for short circuit protection.
- DIN rail mounting for control panels and distribution boards.
- Suitable for railway, transport, automation and industrial systems.
Reliable Protection for Industrial and Railway Installations
The ABB S202MT-K50H01 automatically disconnects the circuit when overload or short circuit conditions occur. Its delayed thermal trip mechanism responds to sustained overloads, while the electromechanical magnetic trip mechanism provides rapid disconnection during short circuit faults.
The K curve characteristic provides tolerance for temporary inrush currents while maintaining effective protection under fault conditions. This makes the breaker a strong choice for motor control circuits, inductive loads, machinery panels and traction electrical systems.
Typical Applications
- Railway and traction electrical systems.
- Industrial control panels.
- Motor control circuits.
- Transformer and inductive load protection.
- Machine building and automation systems.
- Distribution boards.
- Commercial and industrial electrical installations.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S202MT-K50H01 | |
| MPN | 2CDO272006R0577 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Current rating | 50 A | |
| Number of poles | 2 | |
| Tripping characteristic | K Curve | |
| Breaking capacity | 10 kA | |
| Rated voltage | 400 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Mounting type | DIN rail | |
| Protection rating | IP20 | |
| Terminal type | Screw clamp terminals | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm |
Frequently Asked Questions
What is the ABB S202MT-K50H01 used for?
It is used to protect electrical circuits against overloads and short circuits in industrial, railway, traction and automation applications.
What does the K curve mean?
The K curve is designed for circuits with moderate inrush currents, making it suitable for motors, transformers and other inductive loads.
What is the rated current of this MCB?
The ABB S202MT-K50H01 has a 50 A rated current.
How many poles does the S202MT-K50H01 have?
This miniature circuit breaker has a 2-pole configuration.
How is this circuit breaker installed?
The breaker is designed for DIN rail mounting inside electrical distribution boards, control cabinets and automation panels.
Trusted by Industry Professionals Worldwide
ABB S200MT miniature circuit breakers are trusted by engineers, panel builders and railway specialists for reliable circuit protection, compact installation and dependable performance in demanding applications.
