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ABB S203MT-C3NA MCB – S200M – 3P+N – C – 3A
ABB S203MT-C3NA 3P+N miniature circuit breaker with 3 A rated current, C curve tripping characteristic and 10 kA breaking capacity for professional circuit protection.
Why Choose the ABB S203MT-C3NA Miniature Circuit Breaker?
The ABB S203MT-C3NA is a compact and reliable 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200MT series. Designed to protect electrical circuits against overloads and short circuits, it is suitable for commercial, industrial and control panel installations requiring dependable circuit protection and neutral switching.
This miniature circuit breaker 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 C curve characteristic makes it suitable for general-purpose circuits with moderate inrush currents, including lighting, small motors, control circuits and distribution applications.
With a 3 A rated current, 3P+N configuration and 10 kA breaking capacity, the S203MT-C3NA provides professional-grade protection for low-current three-phase circuits with neutral switching. Its DIN rail mounting format enables efficient installation in distribution boards, control panels and machine enclosures.
Key Advantages
- Compact 3P+N miniature circuit breaker for professional installations.
- 3 A rated current for low-current circuit protection.
- C curve tripping characteristic suitable for moderate inrush currents.
- 10 kA rated short-circuit breaking capacity for dependable fault protection.
- Current-limiting design helps reduce fault energy.
- DIN rail mounting for fast installation in panels and distribution boards.
Key Features
- ABB System pro M compact S200MT series.
- Product ID: 2CDS273106R0034.
- Model: S203MT-C3NA.
- Rated current: 3 A.
- C curve tripping characteristic.
- 3P+N configuration with three protected poles and switched neutral.
- Thermal overload and electromechanical short-circuit protection.
- Compact DIN rail design with screw terminal connections.
Reliable Protection for Low-Current Electrical Circuits
Miniature circuit breakers protect electrical circuits by automatically disconnecting the supply when overloads or short circuits occur. The ABB S203MT-C3NA combines thermal and magnetic tripping technologies to help protect wiring, connected equipment and control components from electrical faults.
The C curve characteristic provides a practical balance between sensitivity and tolerance to temporary inrush currents. This makes the S203MT-C3NA suitable for a wide range of low-current industrial, commercial and automation circuits.
Typical Applications
- Industrial control panels.
- Commercial distribution boards.
- Low-current three-phase circuits with neutral switching.
- Lighting and control circuits.
- Automation and machine control systems.
- OEM panel building applications.
Technical Specifications
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| Current | 3 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MT | |
| Model | S203MT-C3NA | |
| Product ID | 2CDS273106R0034 | |
| EAN | 4016779771450 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 3 A | |
| Tripping characteristic | C | |
| Number of poles | 3P+N | |
| Protected poles | 3 | |
| 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 | |
| Built-in depth | approx. 69 mm | |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm | |
| Weight | approx. 0.5 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203MT-C3NA used for?
The ABB S203MT-C3NA is used to protect low-current three-phase circuits with neutral against overloads and short circuits.
What is the rated current of this MCB?
The ABB S203MT-C3NA has a 3 A rated current.
What does the C curve characteristic mean?
A C curve breaker is suitable for general-purpose circuits with moderate inrush currents, such as lighting, control circuits and small inductive loads.
How many poles does the S203MT-C3NA have?
The S203MT-C3NA has a 3P+N configuration, with three protected poles and a switched neutral.
How is this ABB MCB installed?
The ABB S203MT-C3NA is designed for standard DIN rail mounting in 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 industrial engineers for reliable protection, compact installation and dependable performance in modern electrical systems.
