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ABB S203M-K1.6NA MCB – S200M – 3P+N – K – 1.6A
ABB S203M-K1.6NA 4 pole miniature circuit breaker with 1.6 A rated current, K curve tripping characteristic and DIN rail mounting for professional circuit protection.
£103.24
Why Choose the ABB S203M-K1.6NA Miniature Circuit Breaker?
The ABB S203M-K1.6NA is a precision 4-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for reliable protection against overloads and short circuits, it is suitable for industrial, commercial and control panel applications where dependable circuit protection and compact DIN rail installation are required.
This MCB uses ABB's current-limiting technology with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short-circuit protection. Its K curve characteristic is designed for circuits with higher inrush currents, making it especially suitable for inductive loads, control transformers, motors and industrial equipment.
With a 1.6 A rated current, K curve tripping characteristic and 4-pole configuration, the S203M-K1.6NA provides professional-grade protection for three-phase circuits with neutral switching. Its robust construction, compact footprint and compatibility with ABB System pro M compact accessories make it a practical choice for modern electrical distribution systems.
Key Advantages
- Compact 4-pole miniature circuit breaker for professional circuit protection.
- 1.6 A rated current for precise low-current protection.
- K curve tripping characteristic suitable for inductive loads and higher inrush currents.
- Current-limiting design helps reduce fault energy.
- DIN rail mounting for fast installation in control panels and distribution boards.
- Part of the reliable ABB System pro M compact S200M range.
Key Features
- ABB System pro M compact S200M series.
- Product ID: 2CDS273103R0257.
- Model: S203M-K1.6NA.
- Rated current: 1.6 A.
- K curve tripping characteristic.
- 4-pole configuration for three-phase circuits with neutral switching.
- Thermal overload and electromechanical short-circuit protection.
- Compact DIN rail design with screw terminal connections.
Reliable Circuit Protection for Industrial Installations
Miniature circuit breakers protect electrical circuits by automatically disconnecting the supply when overloads or short circuits occur. The ABB S203M-K1.6NA combines thermal and magnetic trip mechanisms to provide accurate protection while helping reduce the risk of damage to cables, equipment and connected loads.
The K curve characteristic makes this MCB suitable for applications where temporary inrush currents may occur during normal operation. This makes it a dependable solution for industrial control systems, transformers, motors and automation equipment requiring selective and stable circuit protection.
Typical Applications
- Industrial control panels.
- Three-phase circuits with neutral switching.
- Control transformers and inductive loads.
- Motor control and automation systems.
- Commercial electrical distribution boards.
- OEM machinery and panel building applications.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Poles | 3-pole + N | |
| Current | 1.6 A | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S203M-K1.6NA | |
| Product ID | 2CDS273103R0257 | |
| EAN | 4016779659468 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 1.6 A | |
| Tripping characteristic | K | |
| Number of poles | 4 pole | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 10 kA | |
| Rated ultimate short-circuit breaking capacity | 15 kA at 400 V AC | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-K1.6NA used for?
The ABB S203M-K1.6NA is used to protect electrical circuits against overloads and short circuits in industrial, commercial and control panel applications.
What is the rated current of this miniature circuit breaker?
This MCB has a 1.6 A rated current, making it suitable for precise low-current circuit protection.
What does the K curve characteristic mean?
A K curve breaker is designed for circuits with higher inrush currents, such as inductive loads, transformers, motors and industrial control equipment.
How many poles does the S203M-K1.6NA have?
The ABB S203M-K1.6NA has a 4-pole configuration, making it suitable for three-phase circuits with neutral switching.
How is this ABB MCB installed?
The S203M-K1.6NA is designed for standard DIN rail mounting in electrical distribution boards, control panels and machine cabinets.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electrical contractors, panel builders and engineers for reliable protection, compact installation and dependable performance in modern electrical systems.
