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S201-B2 Miniature Circuit Breaker – 1P – B – 2 A
ABB S201-B2 single-pole miniature circuit breaker with a 2 A rated current, Type B tripping characteristic and 6 kA breaking capacity for control, instrumentation and low-current electrical circuits.
£16.90
Why Choose the ABB S201-B2 Miniature Circuit Breaker?
The ABB S201-B2 is a compact and dependable single-pole miniature circuit breaker (MCB) designed to protect low-voltage electrical circuits against overloads and short circuits. As part of the established ABB System pro M compact S200 range, it combines current-limiting performance with reliable thermal-magnetic tripping for residential, commercial and industrial installations.
Featuring a 2 A rated current and a Type B tripping characteristic, the S201-B2 is particularly suitable for circuits with low starting currents. Typical uses include control circuits, instrumentation, signalling equipment, lighting controls and other sensitive low-current electrical loads.
The circuit breaker has a rated short-circuit breaking capacity of 6 kA at 230/400 V AC in accordance with IEC/EN 60898-1. Its slim single-module format and standard DIN rail mounting make it straightforward to install within distribution boards, control panels and automation enclosures.
Key Advantages
- Compact 2 A miniature circuit breaker for low-current circuits.
- Type B tripping characteristic suitable for loads with low inrush currents.
- Provides reliable protection against overloads and short circuits.
- 6 kA rated breaking capacity according to IEC/EN 60898-1.
- Current-limiting design helps reduce stress on cables and connected equipment.
- Compatible with accessories from the ABB System pro M compact range.
Key Features
- ABB System pro M compact S200 series.
- Single-pole configuration.
- 2 A rated current.
- Type B tripping curve.
- 230/400 V AC rated operating voltage.
- 6 kA short-circuit breaking capacity.
- Thermal release for overload protection.
- Electromagnetic release for short-circuit protection.
- Standard 35 mm DIN rail mounting.
- Compact one-module design for efficient panel installation.
Reliable Protection for Low-Current Circuits
The ABB S201-B2 uses two complementary tripping mechanisms to provide effective circuit protection. Its delayed thermal release responds to sustained overload conditions, while the electromagnetic release rapidly disconnects the supply when a short circuit occurs.
The Type B characteristic is intended for circuits where normal switch-on currents remain relatively low. This makes the S201-B2 well suited to sensitive control equipment, instrumentation and auxiliary circuits where dependable protection and predictable tripping performance are required.
Typical Applications
- Industrial control and auxiliary circuits.
- Instrumentation and monitoring equipment.
- Building automation systems.
- Lighting control circuits.
- Alarm and signalling systems.
- Commercial and residential distribution boards.
Technical Specifications
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| Current | 2 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200 | |
| Model | S201-B2 | |
| Manufacturer part number | 2CDS251001R0025 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 2 A | |
| Tripping characteristic | B | |
| Number of poles | 1 | |
| Number of protected poles | 1 | |
| Rated operating voltage | 230/400 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated breaking capacity | 6 kA | |
| Ultimate breaking capacity | 10 kA according to IEC/EN 60947-2 | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Current-limiting class | 3 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Module width | 1 module | |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 69 mm | |
| Weight | approx. 0.13 kg | |
| EAN | 4016779612944 |
Frequently Asked Questions
What is the ABB S201-B2 used for?
The ABB S201-B2 protects low-current electrical circuits against overloads and short circuits. It is commonly used with control, instrumentation, signalling and lighting equipment.
What is the rated current of the ABB S201-B2?
The miniature circuit breaker has a rated current of 2 A.
What does the Type B tripping characteristic mean?
A Type B characteristic is designed for circuits with relatively low switch-on or inrush currents, making it suitable for resistive loads, control systems and sensitive electrical equipment.
What is the breaking capacity of this circuit breaker?
The ABB S201-B2 has a rated short-circuit breaking capacity of 6 kA according to IEC/EN 60898-1.
How is the ABB S201-B2 installed?
It is mounted onto a standard 35 mm DIN rail inside a compatible electrical distribution board, control panel or enclosure.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact circuit protection devices are widely used by electrical contractors, panel builders and automation engineers for dependable performance, efficient installation and reliable protection of low-voltage electrical systems.
