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ABB S201M-B2DC MCB – 1P – B Curve – 2A – 10kA
ABB S201M-B2DC single pole DC miniature circuit breaker with a 2 A rating, B curve tripping characteristic and 10 kA breaking capacity for industrial and renewable energy applications.
Why Choose the ABB S201M-B2DC Miniature Circuit Breaker?
The ABB S201M-B2DC is a high performance single pole DC miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in direct current electrical systems. As part of the ABB System pro M compact S200MDC series, it is engineered specifically for DC applications where dependable circuit protection and high breaking performance are essential.
Featuring a B curve tripping characteristic, the S201M-B2DC is ideal for protecting DC distribution circuits, battery systems, control circuits and renewable energy installations. The integrated thermal and magnetic trip mechanisms ensure rapid fault interruption while maintaining reliable operation under normal load conditions.
With a 2 A rated current, 220 V DC rated operational voltage and a 10 kA breaking capacity, this compact DIN rail mounted circuit breaker delivers dependable protection for demanding DC applications while simplifying installation inside electrical panels and distribution boards.
Key Advantages
- Compact single pole DC miniature circuit breaker.
- 2 A rated current for low current DC circuits.
- B curve tripping characteristic for resistive and low inrush loads.
- 10 kA short circuit breaking capacity.
- Designed specifically for DC applications.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S200MDC series.
- 2 A rated current.
- Single pole (1P) configuration.
- B curve tripping characteristic.
- 220 V DC rated operational voltage.
- 10 kA rated breaking capacity.
- Red ON and green OFF contact position indication.
- DIN rail mounting with screw terminals.
Reliable Protection for DC Electrical Systems
The ABB S201M-B2DC is specifically engineered for direct current installations, incorporating permanent magnet arc extinguishing technology to safely interrupt DC fault currents. This provides dependable protection for battery systems, photovoltaic installations, control circuits and industrial DC distribution networks.
Its compact modular design allows straightforward installation in control panels while maintaining excellent reliability, making it suitable for industrial automation, renewable energy systems and other professional DC applications.
Typical Applications
- Battery energy storage systems.
- Solar photovoltaic installations.
- Industrial DC distribution panels.
- Control and signalling circuits.
- Telecommunications power systems.
- OEM machinery and automation equipment.
Technical Specifications
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| Current | 2 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MDC | |
| Model | S201M-B2DC | |
| Product type | DC miniature circuit breaker (MCB) | |
| Rated current | 2 A | |
| Number of poles | 1P | |
| Tripping characteristic | B curve | |
| Rated operational voltage | 220 V DC | |
| Rated insulation voltage | 440 V | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 18 × 69 mm | |
| Weight | approx. 0.125 kg |
Frequently Asked Questions
What is the ABB S201M-B2DC used for?
The S201M-B2DC protects direct current electrical circuits against overloads and short circuits in industrial, renewable energy and battery powered systems.
What is the rated current of this circuit breaker?
The ABB S201M-B2DC has a 2 A rated current.
Is this breaker suitable for DC applications?
Yes. The S201M-B2DC is specifically designed for direct current applications and provides reliable interruption of DC fault currents.
What is the breaking capacity?
The breaker provides a 10 kA rated short circuit breaking capacity.
How is the S201M-B2DC installed?
The breaker mounts onto a standard DIN rail and is intended for installation inside electrical distribution boards and control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact DC miniature circuit breakers are trusted by electrical engineers, panel builders and renewable energy specialists for dependable circuit protection and long term reliability in demanding direct current applications.
