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ABB S202M-B40 MCB – S200M – 2P – B – 40A
ABB S202M-B40 2-pole 40 A B curve miniature circuit breaker from the System pro M compact S200M range with 10 kA breaking capacity for reliable overload and short circuit protection.
£39.70
Why Choose the ABB S202M-B40 Miniature Circuit Breaker?
The ABB S202M-B40 is a high performance 2-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial, industrial and residential electrical installations. As part of the trusted ABB System pro M compact S200M series, it delivers dependable circuit protection while maintaining compact dimensions for DIN rail installations.
Featuring a B curve tripping characteristic, the S202M-B40 is ideally suited to protecting standard electrical circuits where moderate inrush currents are expected. The advanced thermal and electromechanical tripping mechanisms ensure fast fault detection while helping to minimise equipment damage and downtime.
With a 40 A current rating, 2-pole configuration and a 10 kA breaking capacity, this miniature circuit breaker complies with both IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for a wide range of low voltage distribution applications.
Key Advantages
- Compact 2-pole miniature circuit breaker for reliable circuit protection.
- 40 A rated current for commercial and industrial installations.
- B curve tripping characteristic for standard electrical circuits.
- 10 kA short circuit breaking capacity.
- Thermal overload and magnetic short circuit protection.
- Suitable for DIN rail mounting within distribution boards and control panels.
Key Features
- ABB System pro M compact S200M series.
- 2-pole (2P) configuration.
- 40 A rated current.
- B curve tripping characteristic.
- 10 kA rated short circuit capacity.
- Suitable for AC and DC applications.
- Current limiting design with high mechanical endurance.
- Compatible with ABB auxiliary and signalling accessories.
Reliable Protection for Electrical Distribution Systems
The ABB S202M-B40 provides dependable protection by combining thermal overload protection with instantaneous magnetic short circuit protection. This dual tripping technology helps safeguard cables, electrical equipment and distribution systems from potentially damaging fault conditions.
Its compact modular design allows quick installation into distribution boards and industrial control panels while maintaining full compatibility with ABB accessories for signalling and auxiliary switching functions.
Typical Applications
- Industrial control panels.
- Commercial electrical distribution.
- Residential consumer units.
- Machine building and automation systems.
- Motor and equipment protection.
- OEM electrical installations.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S202M-B40 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Current rating | 40 A | |
| Number of poles | 2P | |
| Tripping characteristic | B | |
| Rated operational voltage | 400 V AC (IEC 60898-1), 440 V AC (IEC 60947-2) | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Dimensions (H × W × D) | approx. 88 × 35 × 76 mm | |
| Weight | approx. 0.25 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S202M-B40 used for?
The S202M-B40 protects electrical circuits against overloads and short circuits in industrial, commercial and residential installations.
What does the B curve tripping characteristic mean?
A B curve MCB trips quickly at relatively low fault currents, making it suitable for general electrical circuits with standard inrush currents.
What is the current rating of this circuit breaker?
This miniature circuit breaker has a 40 A rated current.
How many poles does the ABB S202M-B40 have?
The device features a 2-pole (2P) configuration for switching and protecting two conductors simultaneously.
How is the circuit breaker installed?
The S202M-B40 is designed for fast installation onto a standard DIN rail inside electrical distribution boards and control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for delivering dependable protection, high quality construction and long service life across demanding electrical installations.
