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2CDS273334R0134 ABB ST203M-C13 Miniature Circuit Breaker 3P C 13A
ABB ST203M-C13 is a 13 A three-pole C-characteristic miniature circuit breaker from the ST200M series designed for reliable supplementary overcurrent and short-circuit protection in industrial electrical equipment.
£69.04
Why Choose the ABB ST203M-C13 Miniature Circuit Breaker?
The ABB ST203M-C13 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable overcurrent and short-circuit protection in industrial electrical and control systems. As part of the robust ABB ST200M series, it combines a 13 A rated current with a C tripping characteristic for reliable protection of circuits with moderate starting and inrush currents.
Designed for supplementary protection in accordance with UL 1077, the ST203M-C13 is suitable for industrial machinery, control panels and equipment where reliable circuit protection and convenient DIN-rail installation are required. Its thermal-magnetic operating principle provides automatic interruption in response to overloads and short circuits.
The ST203M-C13 features three protected poles, a 13 A current rating and a C tripping characteristic. It offers a rated ultimate short-circuit breaking capacity of 15 kA at 400 V AC under IEC/EN 60947-2 conditions, while its UL 1077 supplementary-protector classification makes it suitable for use within industrial equipment and machinery.
Key Advantages
- Reliable three-pole miniature circuit breaker for industrial circuit protection.
- 13 A rated current for three-phase circuits and equipment.
- C tripping characteristic suitable for general industrial loads with moderate inrush currents.
- 15 kA breaking capacity at 400 V AC under IEC/EN 60947-2 conditions.
- UL 1077 supplementary protection for electrical equipment and control circuits.
- Compact modular construction for straightforward DIN-rail installation.
Key Features
- ABB ST200M miniature circuit breaker series.
- Three-pole configuration.
- 13 A rated current.
- C tripping characteristic.
- Thermal-magnetic overload and short-circuit protection.
- UL 1077 supplementary-protector compliance.
- Designed to applicable IEC/EN 60947-2 and CSA 22.2 No. 235 requirements.
- 4 kV rated impulse withstand voltage.
Reliable Protection for Industrial Electrical Circuits
Miniature circuit breakers such as the ABB ST203M-C13 automatically disconnect a circuit when excessive current is caused by an overload or short circuit. This helps protect wiring and electrical equipment while allowing convenient reset and restoration of the circuit once the fault has been resolved.
The C characteristic provides a practical balance between overload protection and tolerance of normal short-duration starting currents. Combined with the ST200M series' modular DIN-rail format, this makes the ST203M-C13 well suited to supplementary protection in machinery, automation equipment and industrial control panels.
Typical Applications
- Industrial machinery and automation equipment.
- Electrical control panels and switchboards.
- Control and auxiliary circuits.
- Industrial power distribution systems.
- OEM electrical equipment requiring supplementary protection.
- Circuits with moderate starting or inrush currents.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Series | ST200M | |
| ABB order code | 2CDS273334R0134 | |
| Product type | Miniature circuit breaker / supplementary protector | |
| Number of poles | 3 | |
| Rated current | 13 A | |
| Tripping characteristic | C | |
| Voltage type | AC | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Rated ultimate short-circuit breaking capacity | 15 kA at 400 V AC | |
| Standards | UL 1077, CSA 22.2 No. 235, IEC/EN 60947-2 | |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB ST203M-C13 used for?
The ST203M-C13 provides overload and short-circuit protection for industrial electrical equipment, machinery and control circuits.
What is the current rating of the ST203M-C13?
The ABB ST203M-C13 has a rated current of 13 A.
How many poles does the ST203M-C13 have?
The ST203M-C13 is a three-pole miniature circuit breaker, allowing simultaneous protection and switching of three conductors.
What does the C characteristic mean?
The C tripping characteristic is suitable for general-purpose circuits and industrial loads that can experience moderate short-duration starting or inrush currents.
Does the ABB ST203M-C13 comply with UL 1077?
Yes. The ST203M-C13 is designed for UL 1077 supplementary protection and is also specified to applicable IEC/EN 60947-2 and CSA 22.2 No. 235 requirements.
Trusted Industrial Circuit Protection from ABB
ABB ST200M miniature circuit breakers provide compact and dependable supplementary circuit protection for industrial machinery, automation equipment and electrical control systems where reliable switching and overcurrent protection are essential.
