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ABB S201M-B4DC MCB – 1P – B Curve – 4A – 10kA
ABB S201M-B4DC single pole DC miniature circuit breaker featuring a 4 A rating, B curve tripping characteristic, 220 V DC operation and 10 kA breaking capacity for industrial and renewable energy applications.
Why Choose the ABB S201M-B4DC Miniature Circuit Breaker?
The ABB S201M-B4DC is a compact and highly reliable single pole DC miniature circuit breaker (MCB) designed to protect direct current electrical circuits against overloads and short circuits. As part of the trusted ABB System pro M compact S200MDC series, it provides dependable circuit protection for battery systems, renewable energy installations, telecommunications equipment and industrial DC distribution applications.
Featuring a B curve tripping characteristic, the S201M-B4DC is ideal for protecting circuits with low inrush currents, ensuring fast fault interruption while maintaining reliable operation during normal service. Its thermal and magnetic trip mechanisms help maximise equipment protection and system reliability.
With a 4 A rated current, a 220 V DC rated operational voltage and a 10 kA breaking capacity, the ABB S201M-B4DC delivers high performance circuit protection in a compact DIN rail mounted format for demanding industrial DC applications.
Key Advantages
- Compact single pole DC miniature circuit breaker.
- 4 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.
- 4 A rated current.
- Single pole (1P) configuration.
- B curve tripping characteristic.
- 220 V DC rated operational voltage.
- 10 kA rated breaking capacity.
- Energy limiting Class 3 performance.
- DIN rail mounting with screw terminals.
Reliable Protection for DC Electrical Systems
The ABB S201M-B4DC is specifically designed for direct current installations and incorporates dedicated arc extinguishing technology to safely interrupt DC fault currents. This makes it suitable for photovoltaic systems, battery storage installations, telecommunications equipment and industrial DC distribution networks.
Its compact modular construction allows quick installation within electrical control panels while delivering the reliability and performance expected from ABB circuit protection products in demanding environments.
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 | 4 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-B4DC | |
| Product ID | 2TAZ112100R0045 | |
| Product type | DC miniature circuit breaker (MCB) | |
| Rated current | 4 A | |
| Number of poles | 1P | |
| Tripping characteristic | B curve | |
| Rated operational voltage | 220 V DC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 18 × 44 mm | |
| Weight | approx. 0.125 kg |
Frequently Asked Questions
What is the ABB S201M-B4DC used for?
The S201M-B4DC 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-B4DC has a 4 A rated current.
Is this breaker suitable for DC applications?
Yes. The S201M-B4DC 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-B4DC 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.
