Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CCS573001R0317 ABB S403M-K3 Miniature Circuit Breaker 3 A 3P Type K 10 kA
ABB S403M-K3 is a 3 A 3-pole Type K miniature circuit breaker with 10 kA short-circuit breaking capacity, designed for overload and short-circuit protection in SMISSLINE TP plug-in distribution systems.
£97.25
Why Choose the ABB S403M-K3 Miniature Circuit Breaker?
The ABB S403M-K3 is a high-performance 3-pole miniature circuit breaker (MCB) designed for reliable overload and short-circuit protection in low-current three-phase electrical circuits. As part of the ABB S400M / SMISSLINE TP series, it combines a 3 A rated current, Type K tripping characteristic and 10 kA short-circuit breaking capacity with ABB's convenient plug-in distribution technology.
The Type K characteristic makes the S403M-K3 particularly suitable for correctly coordinated circuits containing inductive loads and equipment that can produce elevated starting currents. Its three protected poles provide coordinated protection across three-phase circuits, while the 3 A current rating makes it well suited to control, automation, auxiliary and equipment circuits.
With a 3 A rated current, 3-pole configuration and rated voltage up to 415 V AC, the S403M-K3 provides dependable protection in compact distribution assemblies. Its 54 mm width and SMISSLINE TP plug-in construction support efficient installation and straightforward integration into compatible ABB distribution systems.
Key Advantages
- Reliable 3-pole miniature circuit breaker for overload and short-circuit protection.
- 3 A rated current for low-current three-phase circuits.
- Type K tripping characteristic suitable for appropriately coordinated loads with elevated starting currents.
- 10 kA short-circuit breaking capacity.
- Three protected poles for coordinated three-phase circuit protection.
- IP20 degree of protection.
- Plug-in construction designed for the ABB SMISSLINE TP system.
Key Features
- ABB S400M / SMISSLINE TP series.
- 3 A rated current.
- 3 protected poles.
- Type K tripping characteristic.
- Rated voltage up to 415 V AC.
- 10 kA short-circuit breaking capacity.
- IP20 protection rating.
- Electrical endurance of 10,000 cycles.
- Connection capacity up to 35 mm².
- Compact three-module SMISSLINE TP plug-in construction.
Reliable Protection for Low-Current Three-Phase Circuits
Miniature circuit breakers such as the ABB S403M-K3 protect electrical conductors and connected equipment by interrupting current when overload or short-circuit conditions occur. The Type K characteristic is designed for applications where correctly coordinated equipment can produce elevated starting currents while still requiring dependable overload and short-circuit protection.
The S403M-K3 combines this specialised tripping characteristic with ABB's SMISSLINE TP plug-in architecture. Its three-pole construction, 3 A rating and 10 kA breaking capacity make it a practical solution for low-current three-phase circuits requiring reliable protection, modular installation and straightforward system integration.
Typical Applications
- Low-current three-phase control circuits.
- Industrial automation and machine control systems.
- Auxiliary electrical circuits.
- Control transformer circuits with appropriate coordination.
- Industrial electrical distribution boards.
- Inductive loads with correctly assessed starting-current requirements.
- ABB SMISSLINE TP modular distribution assemblies.
Technical Specifications
| Series | S400M / SMISSLINE TP |
|---|---|
| ABB order code | 2CCS573001R0317 |
| EAN | 7612270103188 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 3 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Tripping characteristic | Type K |
| Rated voltage | Up to 415 V AC |
| Short-circuit breaking capacity | 10 kA |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50–60 Hz |
| Current limiting class | 3 |
| Overvoltage category | III |
| Pollution degree | 3 |
| Protection rating | IP20 |
| Operating temperature | -25 to +60 °C |
| Electrical endurance | 10,000 cycles |
| Solid conductor connection | 0.75–35 mm² |
| Multi-wired conductor connection | 0.75–25 mm² |
| Mounting type | SMISSLINE TP plug-in system |
| Width | 54 mm |
| Height | 91 mm |
| Depth | 75 mm |
| Width in modules | 3 |
| Weight | approx. 322 g |
| Standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S403M-K3 used for?
The S403M-K3 is a 3-pole miniature circuit breaker designed to protect compatible low-current three-phase electrical circuits against overloads and short circuits.
What is the current rating of the S403M-K3?
The ABB S403M-K3 has a rated current of 3 A.
What tripping characteristic does the S403M-K3 use?
The S403M-K3 uses a Type K tripping characteristic, making it suitable for correctly coordinated circuits containing loads that can produce elevated starting currents.
What is the breaking capacity of the ABB S403M-K3?
The S403M-K3 has a short-circuit breaking capacity of 10 kA.
How is the ABB S403M-K3 installed?
The breaker is designed for plug-in installation within the ABB SMISSLINE TP system, enabling efficient integration into compatible modular electrical distribution assemblies.
Trusted ABB Three-Phase Circuit Protection
ABB S400M miniature circuit breakers provide dependable overload and short-circuit protection for commercial and industrial applications while combining specialised tripping characteristics with the modular advantages of the SMISSLINE TP plug-in distribution system.
