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2CCS572001R0317 ABB S402M-K3 MCB 10kA 2P Type K 3A
ABB S402M-K3 is a 3 A Type K 2-pole miniature circuit breaker with 10 kA rated breaking capacity, designed for reliable overload and short-circuit protection in SMISSLINE plug-in electrical distribution systems.
£63.54
Why Choose the ABB S402M-K3 Miniature Circuit Breaker?
The ABB S402M-K3 is a high-performance 2-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit conditions. Part of the ABB S400M range for the SMISSLINE TP plug-in system, it combines a 3 A rated current, Type K tripping characteristic and 10 kA rated short-circuit breaking capacity.
The S402M-K3 uses separate thermal and electromagnetic tripping mechanisms to provide dependable circuit protection. Its Type K characteristic is particularly suited to circuits supplying inductive loads and equipment with elevated starting currents, helping accommodate normal inrush conditions while maintaining effective overload and short-circuit protection.
Designed specifically for the SMISSLINE plug-in distribution platform, this two-pole breaker provides straightforward integration into compatible ABB assemblies. With an IP20 protection rating, compact 36 mm width and robust industrial construction, it is well suited to control panels, machinery and commercial or industrial power distribution.
Key Advantages
- 3 A rated current for reliable protection of lower-current electrical circuits.
- 2-pole configuration with both poles protected.
- Type K tripping characteristic suited to inductive loads and equipment with elevated starting currents.
- 10 kA rated short-circuit breaking capacity to EN 60898.
- Purpose-designed for the ABB SMISSLINE TP plug-in system.
- Thermal and electromagnetic releases provide overload and short-circuit protection.
Key Features
- ABB S400M series miniature circuit breaker.
- 3 A nominal current rating.
- Type K tripping characteristic.
- 2 protected poles.
- 10 kA breaking capacity to EN 60898.
- 25 kA ultimate short-circuit breaking capacity to IEC 60947-2 at 230/400 V AC.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- IP20 protection rating.
- SMISSLINE plug-in mounting for compatible distribution systems.
- Compact two-module construction.
Reliable Protection for Inductive Electrical Loads
Miniature circuit breakers such as the ABB S402M-K3 use a delayed thermal release for overload protection together with an electromagnetic release for rapid short-circuit protection. This combination helps protect cables, conductors and connected equipment against damaging overcurrent conditions.
The Type K characteristic is particularly useful for inductive equipment and circuits where normal starting currents can exceed steady-state operating current. Combined with ABB SMISSLINE plug-in technology, the S402M-K3 provides reliable circuit protection with convenient integration into modular industrial and commercial distribution systems.
Typical Applications
- ABB SMISSLINE TP electrical distribution systems.
- Industrial control panels and switchboards.
- Low-current motor and inductive-load circuits.
- Control transformers and electromagnetic equipment.
- Machine and automation power distribution.
- Commercial and industrial electrical installations.
Technical Specifications
| Series | S400M / SMISSLINE TP |
|---|---|
| ABB order code | 2CCS572001R0317 |
| EAN | 7612270102419 |
| Product type | Miniature circuit breaker (MCB) |
| Number of poles | 2 |
| Number of protected poles | 2 |
| Rated current | 3 A |
| Tripping characteristic | Type K |
| Rated voltage | 240 V AC |
| Rated short-circuit breaking capacity (Icn) | 10 kA at 230/400 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 25 kA at 230/400 V AC |
| Frequency | 50–60 Hz |
| Rated insulation voltage (Ui) | 440 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Energy limiting class | 3 |
| Overvoltage category | III |
| Pollution degree | 3 |
| Protection rating | IP20 |
| Power loss | 2.4 W |
| Mounting type | SMISSLINE plug-in |
| Width | 2 modules / 36 mm |
| Dimensions (W × H × D) | 36 × 91 × 75 mm |
| Operating temperature | −25 to +60 °C |
| Connectable stranded conductor | 0.75–25 mm² |
| Connectable solid conductor | 0.75–35 mm² |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S402M-K3 used for?
The ABB S402M-K3 is a 2-pole miniature circuit breaker used to protect electrical circuits against overload and short-circuit currents in compatible ABB SMISSLINE TP distribution systems.
What is the current rating of the S402M-K3?
The S402M-K3 has a rated current of 3 A.
What does the Type K characteristic mean?
The Type K tripping characteristic is designed to accommodate comparatively high starting currents, making it suitable for many inductive loads while retaining effective overload and short-circuit protection.
What is the breaking capacity of the ABB S402M-K3?
The S402M-K3 has a rated short-circuit breaking capacity of 10 kA at 230/400 V AC to EN 60898 and an ultimate short-circuit breaking capacity of 25 kA to IEC 60947-2.
How is the S402M-K3 installed?
The circuit breaker is designed for plug-in installation in compatible ABB SMISSLINE TP systems, providing efficient integration into modular electrical distribution assemblies.
Trusted ABB Circuit Protection
ABB SMISSLINE protective devices combine modular plug-in distribution technology with dependable overload and short-circuit protection for industrial, commercial and machine-building electrical systems.
