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.
2CDS272334R0404 ABB ST202M-C40 Miniature Circuit Breaker 15kA 2P C 40A UL 1077
ABB ST202M-C40 is a 40 A two-pole C-characteristic miniature circuit breaker with 15 kA short-circuit breaking capacity and UL 1077 supplementary protection for industrial control, machinery and electrical equipment.
£59.06
Why Choose the ABB ST202M-C40 Miniature Circuit Breaker?
The ABB ST202M-C40 is a robust two-pole miniature circuit breaker (MCB) designed to provide supplementary overcurrent and short-circuit protection in industrial control, automation and machine-building electrical systems. Part of the ABB System pro M compact ST200M series, it combines a C tripping characteristic with a 40 A rated current for dependable protection of circuits with moderate starting and inrush currents.
Designed for UL 1077 supplementary protection applications, the ST202M-C40 provides two-pole protection in a compact DIN rail format. Its C tripping characteristic makes it suitable for general industrial loads, control equipment, machinery and auxiliary circuits where moderate transient currents can occur during normal operation.
With a rated current of 40 A, a two-pole configuration and a 15 kA short-circuit breaking capacity, the ST202M-C40 provides robust fault protection for demanding electrical installations. Its modular construction supports efficient integration into industrial panels and OEM equipment requiring reliable supplementary circuit protection.
Key Advantages
- Compact two-pole miniature circuit breaker for supplementary circuit protection.
- 40 A rated current for industrial control, machinery and auxiliary circuits.
- C tripping characteristic accommodates moderate starting and inrush currents.
- 15 kA short-circuit breaking capacity for robust fault protection.
- Designed for UL 1077 supplementary protection applications.
- DIN rail construction enables straightforward integration into industrial panels and OEM equipment.
Key Features
- ABB System pro M compact ST200M series.
- 40 A rated current.
- 2-pole configuration.
- C tripping characteristic.
- 15 kA short-circuit breaking capacity.
- Designed for UL 1077 supplementary circuit protection.
- Thermal-magnetic overload and short-circuit protection.
- C characteristic provides tolerance of moderate transient starting currents.
- Resettable operation following fault clearance.
- Compact modular construction for efficient use of panel space.
- DIN rail mounting for straightforward installation.
- Part of ABB's System pro M compact circuit protection range.
Reliable Supplementary Protection for Industrial Electrical Systems
Miniature circuit breakers such as the ABB ST202M-C40 automatically interrupt a circuit when excessive current caused by an overload or short circuit is detected. This helps protect conductors and connected electrical equipment while providing convenient resettable protection for industrial control, auxiliary and machine-building circuits.
The C characteristic provides a practical balance between fault sensitivity and tolerance of moderate transient currents, making the ST202M-C40 suitable for a broad range of industrial electrical loads. Combined with its 40 A rating, two-pole configuration and high short-circuit breaking capacity, it provides a compact supplementary protection solution for automation panels, machinery and OEM electrical equipment.
Typical Applications
- Industrial machinery and electrical control panels.
- Automation and process-control equipment.
- Control and auxiliary electrical circuits.
- Circuits with moderate starting or inrush currents.
- Commercial and industrial electrical equipment.
- OEM machinery requiring UL 1077 supplementary protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Series | System pro M compact ST200M | |
| ABB order code | 2CDS272334R0404 | |
| Product type | Miniature circuit breaker (MCB) | |
| Product group | UL 489 / UL 1077 MCB | |
| Number of poles | 2 | |
| Rated current | 40 A | |
| Tripping characteristic | C | |
| Short-circuit breaking capacity | 15 kA | |
| Protection function | Overload and short-circuit protection | |
| Certification application | UL 1077 supplementary protection | |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB ST202M-C40 used for?
The ST202M-C40 is a two-pole miniature circuit breaker designed for supplementary overcurrent and short-circuit protection in industrial control, machinery, automation and auxiliary electrical circuits.
What is the current rating of the ST202M-C40?
The ABB ST202M-C40 has a rated current of 40 A.
What does the C characteristic mean?
The C tripping characteristic accommodates moderate starting and inrush currents, making it suitable for a broad range of industrial control equipment, machinery and general electrical loads.
What is the short-circuit breaking capacity of the ABB ST202M-C40?
The ABB ST202M-C40 has a specified short-circuit breaking capacity of 15 kA, providing robust fault protection for suitable industrial electrical applications.
Is the ST202M-C40 designed for UL 1077 applications?
Yes. The ABB ST202M-C40 is designed for UL 1077 supplementary circuit protection applications in industrial electrical equipment, control systems and machinery.
Trusted ABB Circuit Protection
ABB System pro M compact miniature circuit breakers provide dependable supplementary circuit protection for industrial control, automation and machine-building applications, combining compact DIN rail installation with reliable overload and short-circuit protection.
