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.
2CDS271334R0015 ABB ST201M-B1 1A 1P B Curve Miniature Circuit Breaker
ABB ST201M-B1 is a 1 A single-pole B-curve miniature circuit breaker and UL 1077 supplementary protector designed for reliable overload and short-circuit protection in industrial electrical and control systems.
£20.72
Why Choose the ABB ST201M-B1 Miniature Circuit Breaker?
The ABB ST201M-B1 is a high-performance single-pole miniature circuit breaker (MCB) / supplementary protector designed to provide reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. With ABB order code 2CDS271334R0015, it forms part of the ABB ST 200 M series of modular circuit protection devices.
Designed for applications requiring dependable circuit protection in a compact DIN-rail format, the ST201M-B1 combines thermal and magnetic tripping to protect electrical equipment and conductors against overload and short-circuit conditions. Its B tripping characteristic makes it particularly suitable for circuits with relatively low inrush currents.
The ST201M-B1 has a rated current of 1 A and a single-pole configuration. It is certified to UL 1077 for use as a supplementary protector and is also designed in accordance with relevant IEC/EN circuit-breaker requirements, making it suitable for industrial control equipment, machinery and electrical distribution applications.
Key Advantages
- Compact single-pole miniature circuit breaker for supplementary circuit protection.
- 1 A rated current for protecting low-current electrical circuits and equipment.
- B tripping characteristic suitable for circuits with relatively low starting and inrush currents.
- High 15 kA short-circuit breaking capacity at 230 V AC according to IEC 60947-2.
- UL 1077 supplementary protector certification for North American applications.
- DIN-rail modular construction simplifies integration into electrical control and distribution panels.
Key Features
- ABB ST 200 M series miniature circuit breaker.
- 1 A rated current.
- Single-pole (1P) configuration.
- B-curve tripping characteristic.
- 15 kA rated ultimate short-circuit breaking capacity at 230 V AC according to IEC 60947-2.
- 10 kA interrupting rating at 240/277 V AC according to UL 1077.
- UL 1077, IEC/EN 60947-2 and CSA 22.2 No. 235 standards.
- Thermal-magnetic protection against overloads and short circuits.
- Compact modular design for DIN-rail installation.
Reliable Circuit Protection for Industrial Systems
Miniature circuit breakers such as the ABB ST201M-B1 provide automatic protection against overload and short-circuit conditions. When current exceeds the permitted operating range, the thermal-magnetic tripping mechanism disconnects the circuit, helping protect connected wiring and electrical equipment from damaging overcurrent conditions.
The ST 200 M series is designed for demanding industrial and commercial applications where compact modular protection and dependable switching performance are required. The ST201M-B1's 1 A rating and B tripping characteristic make it particularly suited to low-current control, automation and equipment circuits, while its UL 1077 classification supports use as a supplementary protector within equipment.
Typical Applications
- Industrial control panels and automation systems.
- Machine control and auxiliary circuits.
- Low-current electrical equipment protection.
- Supplementary protection within UL-listed equipment.
- Commercial and industrial electrical distribution panels.
- Control, signalling and instrumentation circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Series | ST 200 M | |
| SKU | ST201MB1 | |
| ABB order code | 2CDS271334R0015 | |
| Product type | Miniature circuit breaker / supplementary protector | |
| Product group | UL 489 / UL 1077 MCB | |
| Number of poles | 1P | |
| Rated current | 1 A | |
| Tripping characteristic | B | |
| Rated operational voltage | 230 V AC according to IEC 60947-2 | |
| UL 1077 rated voltage | 240 / 277 V AC; 60 V DC | |
| Rated insulation voltage (Ui) | 440 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Rated ultimate short-circuit breaking capacity (Icu) | 15 kA at 230 V AC | |
| UL 1077 interrupting rating | 10 kA at 240 / 277 V AC and 60 V DC | |
| Input voltage type | AC | |
| Standards | UL 1077, CSA 22.2 No. 235, IEC/EN 60947-2 | |
| Mounting type | DIN rail | |
| Weight | approx. 0.115 kg | |
| EAN | 4016779016667 |
Frequently Asked Questions
What is the ABB ST201M-B1 used for?
The ST201M-B1 is a single-pole miniature circuit breaker and UL 1077 supplementary protector used to protect low-current electrical and control circuits against overload and short-circuit conditions.
What is the rated current of the ST201M-B1?
The ABB ST201M-B1 has a rated current of 1 A.
What tripping characteristic does the ST201M-B1 use?
The ST201M-B1 uses a B tripping characteristic, making it suitable for circuits with relatively low starting and inrush currents.
What is the short-circuit breaking capacity of the ST201M-B1?
The ST201M-B1 has a rated ultimate short-circuit breaking capacity of 15 kA at 230 V AC according to IEC 60947-2 and a 10 kA interrupting rating at 240/277 V AC according to UL 1077.
What is the ABB order code for the ST201M-B1?
The ABB order code for the ST201M-B1 is 2CDS271334R0015.
ABB Circuit Protection for Industrial Applications
ABB ST 200 M miniature circuit breakers provide compact and dependable overcurrent protection for industrial control equipment, machinery and electrical distribution systems, with configurations designed for both IEC and North American supplementary protection applications.
