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2CDS272334R0301 ABB ST202M-D30 Miniature Circuit Breaker 30 A 2P D
ABB ST202M-D30 is a 30 A two-pole D-characteristic miniature circuit breaker and UL 1077 supplementary protector from the ST200M series with a 15 kA short-circuit breaking capacity for industrial control and equipment circuit protection.
£64.22
Why Choose the ABB ST202M-D30 Miniature Circuit Breaker?
The ABB ST202M-D30 is a compact and reliable two-pole miniature circuit breaker (MCB) designed for supplementary overcurrent protection in industrial control, automation and electrical equipment applications. As part of the proven ABB ST200M series, it combines a 30 A rated current with a D tripping characteristic for circuits where relatively high starting or inrush currents may occur.
Designed as a UL 1077 supplementary protector, the ST202M-D30 provides thermal-magnetic protection against overload and short-circuit conditions. Its two-pole configuration enables simultaneous protection and switching of two conductors, while its modular DIN-rail construction supports straightforward integration into machinery, control cabinets and industrial electrical assemblies.
With a rated current of 30 A, D characteristic and a specified 15 kA short-circuit breaking capacity, the ST202M-D30 provides robust supplementary circuit protection for demanding industrial applications. The ABB order code for this device is 2CDS272334R0301.
Key Advantages
- Compact two-pole miniature circuit breaker for supplementary circuit protection.
- 30 A rated current for industrial equipment and control circuits.
- D tripping characteristic suitable for loads with relatively high starting or inrush currents.
- Thermal-magnetic protection against overload and short-circuit conditions.
- UL 1077 supplementary protector design for equipment-level applications.
- 15 kA short-circuit breaking capacity for robust industrial circuit protection.
- DIN-rail mounting simplifies installation in industrial control panels and enclosures.
Key Features
- ABB ST200M miniature circuit breaker series.
- 2-pole configuration.
- 30 A rated current.
- D tripping characteristic.
- 15 kA short-circuit breaking capacity.
- Thermal-magnetic overcurrent protection.
- UL 1077 supplementary protector.
- Also covered by CSA 22.2 No. 235 series requirements.
- Compact modular construction for industrial electrical assemblies.
- DIN-rail mounting for straightforward panel installation.
Reliable Supplementary Circuit Protection
Miniature circuit breakers such as the ABB ST202M-D30 automatically interrupt a circuit when excessive current is detected. Thermal protection responds to sustained overload conditions, while the magnetic mechanism provides rapid operation during severe overcurrent and short-circuit events.
The D characteristic is particularly useful for appropriate industrial loads where normal energisation can produce relatively high transient currents. This makes the ST202M-D30 suitable for machinery and equipment circuits requiring dependable overcurrent protection without unnecessary operation during normal starting conditions.
Typical Applications
- Industrial machinery and automation panels.
- Control and auxiliary power circuits.
- Equipment-level supplementary overcurrent protection.
- Circuits with elevated starting or inrush currents.
- Industrial electrical distribution assemblies.
- OEM control cabinets and machine-building applications.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Series | ST200M | |
| ABB order code | 2CDS272334R0301 | |
| Product type | Miniature circuit breaker / supplementary protector | |
| Number of poles | 2 | |
| Rated current | 30 A | |
| Tripping characteristic | D | |
| Short-circuit breaking capacity | 15 kA | |
| Standards | UL 1077 / CSA 22.2 No. 235 | |
| Protection principle | Thermal-magnetic | |
| Mounting type | DIN rail | |
| Weight | approx. 0.230 kg | |
| Packing unit | 5 pieces |
Frequently Asked Questions
What is the ABB ST202M-D30 used for?
The ST202M-D30 is a two-pole supplementary miniature circuit breaker designed to protect industrial control, automation and equipment circuits against overload and short-circuit conditions.
What is the rated current of the ST202M-D30?
The ABB ST202M-D30 has a rated current of 30 A.
What does the D characteristic mean?
The D tripping characteristic provides tolerance for relatively high short-duration inrush currents, making it suitable for appropriate industrial loads and equipment with elevated starting currents.
What is the breaking capacity of the ABB ST202M-D30?
The ST202M-D30 has a specified short-circuit breaking capacity of 15 kA.
Is the ABB ST202M-D30 a UL 1077 supplementary protector?
Yes. The ST202M-D30 is designed as a UL 1077 supplementary protector for equipment-level overcurrent protection applications.
Trusted ABB Circuit Protection
ABB ST200M miniature circuit breakers provide compact and dependable supplementary circuit protection for industrial control panels, machinery and automation equipment where reliable overload and short-circuit protection is required.
