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2CCS571001R0205 ABB S401M-B20 MCB 10 kA 1P Type B 20 A
ABB S401M-B20 is a 20 A single-pole Type B miniature circuit breaker with 10 kA rated short-circuit capacity, designed for overload and short-circuit protection in SMISSLINE TP electrical distribution systems.
£18.76
Why Choose the ABB S401M-B20 Miniature Circuit Breaker?
The ABB S401M-B20 is a compact and reliable single-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit currents. As part of the advanced ABB SMISSLINE TP S400M series, it combines a delayed thermal tripping mechanism for overload protection with an electromechanical tripping mechanism for short-circuit protection.
This MCB uses ABB's pluggable SMISSLINE TP system, allowing direct integration with compatible SMISSLINE socket-base distribution assemblies and helping simplify installation, replacement and system expansion. Its current-limiting design provides dependable circuit protection while the compact single-module construction makes efficient use of space within electrical distribution systems.
With a rated current of 20 A, a Type B tripping characteristic and a rated short-circuit capacity of 10 kA, the S401M-B20 is suitable for circuits where relatively low inrush currents are expected. The device is designed for commercial, industrial and critical-power applications and carries ABB order code 2CCS571001R0205.
Key Advantages
- Compact single-pole miniature circuit breaker for overload and short-circuit protection.
- 20 A rated current suitable for commercial and industrial electrical circuits.
- Type B tripping characteristic suitable for circuits with relatively low inrush currents.
- 10 kA rated short-circuit capacity according to IEC/EN 60898-1.
- Pluggable design developed specifically for the ABB SMISSLINE TP system.
- Thermal and electromechanical tripping mechanisms provide dependable circuit protection.
Key Features
- ABB SMISSLINE TP S400M series.
- 20 A rated current.
- Single-pole (1P) configuration.
- Type B trip characteristic.
- 10 kA Icn breaking capacity.
- 230 / 400 V AC rated voltage.
- Current-limiting miniature circuit breaker construction.
- IP20 degree of protection.
- Compact 18 mm single-module width.
Reliable Circuit Protection for SMISSLINE TP Systems
Miniature circuit breakers such as the ABB S401M-B20 protect cables and connected electrical circuits against excessive current caused by overloads and short circuits. Its delayed thermal tripping mechanism responds to sustained overload conditions, while the electromechanical mechanism provides rapid operation during short-circuit faults.
The S400M range is designed for ABB's SMISSLINE TP plug-in distribution system. This modular approach supports efficient installation, expansion and maintenance in commercial, industrial and critical-power distribution applications while providing reliable circuit protection in a compact format.
Typical Applications
- Commercial electrical distribution systems.
- Industrial control and distribution panels.
- ABB SMISSLINE TP distribution assemblies.
- Lighting and general-purpose final circuits.
- Circuits with low starting or inrush currents.
- Automation and machinery electrical systems.
- Critical-power distribution applications.
Technical Specifications
| Series | SMISSLINE TP S400M |
|---|---|
| ABB order code | 2CCS571001R0205 |
| EAN | 7612270101269 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 20 A |
| Number of poles | 1P |
| Tripping characteristic | Type B |
| Rated short-circuit capacity (Icn) | 10 kA |
| Rated voltage | 230 / 400 V AC |
| Protection rating | IP20 |
| Mounting type | Plug-in SMISSLINE TP system |
| Standard | IEC/EN 60898-1 |
| Module width | 18 mm |
| Dimensions (H × W × D) | 91 × 18 × 82 mm |
| Weight | approx. 140 g |
Frequently Asked Questions
What is the ABB S401M-B20 used for?
This miniature circuit breaker is used to protect electrical circuits and cables against overload and short-circuit currents in ABB SMISSLINE TP distribution systems.
What is the current rating of the S401M-B20?
The ABB S401M-B20 has a rated current of 20 A.
What does the Type B characteristic mean?
The Type B tripping characteristic is intended for circuits with relatively low starting or inrush currents, making it suitable for many resistive, lighting and general-purpose electrical loads.
What is the breaking capacity of the ABB S401M-B20?
The S401M-B20 has a rated short-circuit capacity of 10 kA Icn according to IEC/EN 60898-1.
How is the S401M-B20 installed?
The breaker is designed as a pluggable device for the ABB SMISSLINE TP system, enabling direct integration into compatible SMISSLINE socket-base distribution assemblies.
Trusted ABB Circuit Protection
ABB SMISSLINE TP miniature circuit breakers provide compact, dependable overload and short-circuit protection for commercial, industrial and critical-power electrical distribution systems.
