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ABB S203M-K6NA MCB – S200M – 3P+N – K – 6A
ABB S203M-K6NA miniature circuit breaker from the System pro M compact S200M range featuring a 6 A rating, K curve tripping characteristic, 3+NP configuration and up to 10 kA breaking capacity for reliable circuit protection.
£103.24
Why Choose the ABB S203M-K6NA Miniature Circuit Breaker?
The ABB S203M-K6NA is a professional miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for commercial, industrial and control panel applications. As part of the trusted ABB System pro M compact S200M series, it delivers dependable current-limiting protection for modern electrical installations.
This miniature circuit breaker features a K curve tripping characteristic, making it suitable for circuits with higher inrush currents than standard B or C curve devices. It is commonly used for inductive loads, control circuits, transformers and machinery where nuisance tripping must be reduced while maintaining reliable fault protection.
With a rated current of 6 A, a 3+NP pole configuration and a breaking capacity of up to 10 kA at 230 / 400 V AC, the S203M-K6NA is ideal for specialised three-phase circuit protection applications requiring neutral switching. Its compact DIN rail format supports fast installation in modular electrical enclosures.
Key Advantages
- Reliable ABB miniature circuit breaker for professional circuit protection.
- 6 A rated current for low-current three-phase circuits.
- K curve tripping characteristic for inductive loads and higher inrush current applications.
- 3+NP configuration for three-phase systems requiring neutral switching.
- Current-limiting design helps protect cables and connected equipment.
- DIN rail mounting for fast installation in control panels and distribution boards.
Key Features
- ABB System pro M compact S200M series.
- 6 A rated current.
- K curve tripping characteristic.
- 3+NP pole configuration.
- Up to 10 kA breaking capacity at 230 / 400 V AC.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- Compact modular design for DIN rail mounting.
Reliable Protection for Inductive Electrical Loads
Miniature circuit breakers such as the ABB S203M-K6NA automatically disconnect electrical circuits during overload or short-circuit conditions. This helps protect cables, equipment and connected loads while supporting safe and compliant electrical installation design.
The ABB S200M range is engineered for professional installations requiring compact dimensions, dependable performance and high breaking capacity. The K curve characteristic makes this model particularly suitable for transformers, motors, control circuits and other equipment with elevated starting currents.
Typical Applications
- Industrial control panels.
- Transformer and inductive load protection.
- Motor control circuits.
- Machine building and OEM electrical systems.
- Commercial distribution boards.
- Automation and process control equipment.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 6 A | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S203M-K6NA | |
| Product type | Miniature circuit breaker | |
| Product ID | 2CDS273103R0617 | |
| EAN | 4016779659512 | |
| Rated current | 6 A | |
| Tripping characteristic | K curve | |
| Pole configuration | 3+NP | |
| Rated operational voltage | 230 / 400 V AC | |
| Rated insulation voltage | 440 V | |
| Frequency | 50 / 60 Hz | |
| Rated breaking capacity | up to 10 kA | |
| Protection rating | IP20 | |
| Current limiting class | 3 | |
| Mounting type | DIN rail mounting | |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-K6NA used for?
The ABB S203M-K6NA is used to protect three-phase electrical circuits against overloads and short circuits, particularly where inductive loads or higher inrush currents are present.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 6 A.
What does the K curve characteristic mean?
A K curve MCB is designed for circuits with higher inrush currents, making it suitable for motors, transformers, inductive loads and selected control applications.
What does the 3+NP configuration mean?
The S203M-K6NA provides three protected phase poles together with a neutral pole, making it suitable for three-phase systems requiring neutral switching.
Where is this miniature circuit breaker installed?
It is designed for DIN rail installation inside distribution boards, switchboards and electrical control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for reliable circuit protection, compact installation and long-term performance in demanding electrical systems.
