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ABB S201M-B1DC MCB – S200M – 1P – B – 1A
ABB S201M-B1DC S200MDC miniature circuit breaker, 1 pole, B curve, 1 A rated current, 220 V DC operational voltage and 10 kA short-circuit breaking capacity for DC circuit protection.
Why Choose the ABB S201M-B1DC Miniature Circuit Breaker?
The ABB S201M-B1DC is a compact and reliable single-pole DC miniature circuit breaker designed to protect electrical circuits against overloads and short circuits. Part of the ABB S200MDC series, this MCB is engineered for direct current applications where dependable protection, high breaking capacity and compact DIN rail installation are required.
This miniature circuit breaker uses a B tripping characteristic, making it suitable for circuits with low inrush current. Its current-limiting design combines thermal overload protection with electromagnetic short-circuit protection, helping protect cables, devices and connected equipment in commercial and industrial DC installations.
With a rated current of 1 A, 220 V DC rated operational voltage and 10 kA short-circuit breaking capacity, the S201M-B1DC is ideal for low-current control, monitoring and auxiliary DC circuits. Its slim one-module format allows efficient installation in distribution boards and control panels.
Key Advantages
- Compact DC miniature circuit breaker for low-current circuit protection.
- 1 A rated current suitable for control and auxiliary circuits.
- B curve tripping characteristic for low inrush current applications.
- 10 kA breaking capacity for dependable fault protection.
- Single-pole design for space-saving DIN rail installation.
- Part of the trusted ABB S200MDC MCB range.
Key Features
- ABB S200MDC miniature circuit breaker series.
- 1P single-pole configuration.
- 1 A rated current.
- B curve tripping characteristic.
- 220 V DC rated operational voltage.
- 10 kA rated short-circuit capacity.
- Thermal and electromagnetic trip mechanisms.
- DIN rail mounting for modular electrical panels.
Reliable Protection for DC Electrical Circuits
Miniature circuit breakers protect electrical installations by automatically disconnecting a circuit during overload or short-circuit conditions. In DC systems, dependable fault interruption is particularly important because direct current arcs can be more difficult to extinguish than AC faults.
The ABB S200MDC range is designed for DC circuit protection in compact modular installations. The S201M-B1DC provides precise low-current protection for control circuits, auxiliary supplies and equipment where safety, reliability and compliance are essential.
Typical Applications
- DC control circuits.
- Industrial automation panels.
- Auxiliary power supplies.
- Monitoring and signalling circuits.
- Battery-backed control systems.
- Commercial and industrial distribution boards.
Technical Specifications
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| Current | 1 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MDC | |
| Model | S201M-B1DC | |
| Product ID | 2TAZ112100R0015 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 1P | |
| Protected poles | 1 | |
| Rated current | 1 A | |
| Tripping characteristic | B curve | |
| Rated operational voltage | 220 V DC | |
| Rated voltage | 220 V | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated short-circuit capacity | 10 kA | |
| Rated ultimate short-circuit breaking capacity | 10 kA at 220 V DC | |
| Energy limiting class | 3 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Dimensions (W × H × D) | approx. 18 × 88 × 44 mm | |
| Weight | approx. 0.125 kg |
Frequently Asked Questions
What is the ABB S201M-B1DC used for?
The ABB S201M-B1DC is used to protect low-current DC electrical circuits against overloads and short circuits.
What current rating does this MCB have?
The S201M-B1DC has a 1 A rated current, making it suitable for low-current control and auxiliary circuits.
What tripping curve is the ABB S201M-B1DC?
This miniature circuit breaker has a B curve tripping characteristic, suitable for circuits with low inrush current.
What voltage is the S201M-B1DC designed for?
The ABB S201M-B1DC is designed for 220 V DC rated operational voltage.
What is the breaking capacity of this MCB?
The S201M-B1DC has a 10 kA short-circuit breaking capacity, providing dependable protection in DC installations.
Trusted by Electrical Engineers Worldwide
ABB miniature circuit breakers are trusted by panel builders, electrical contractors and automation engineers to provide reliable circuit protection in industrial, commercial and control system applications.
