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2CDS271334R0277 ABB ST201M-K2 2A 1P K Curve Miniature Circuit Breaker
ABB ST201M-K2 is a 2 A single-pole K-curve miniature circuit breaker and UL 1077 supplementary protector with a 15 kA IEC short-circuit breaking capacity for industrial control, automation and equipment circuits.
£26.93
Why Choose the ABB ST201M-K2 Miniature Circuit Breaker?
The ABB ST201M-K2 is a high-performance single-pole miniature circuit breaker (MCB) / supplementary protector designed for reliable overload and short-circuit protection in industrial control, automation and equipment circuits. With ABB order code 2CDS271334R0277, it forms part of the ABB ST 200 M series of modular DIN-rail circuit protection devices.
Designed for demanding applications requiring dependable protection in a compact format, the ST201M-K2 combines thermal and magnetic tripping to protect conductors and connected equipment against overcurrent conditions. Its K tripping characteristic is particularly suited to inductive loads and equipment with elevated starting currents, helping reduce unwanted tripping during normal start-up conditions.
The ST201M-K2 has a rated current of 2 A, a single-pole configuration and an IEC rated ultimate short-circuit breaking capacity of 15 kA at 230 V AC. Under UL 1077 it provides a 10 kA interrupting rating at 240 V AC, 277 V AC and 60 V DC, making it a versatile supplementary protector for industrial electrical equipment.
Key Advantages
- Compact single-pole miniature circuit breaker for supplementary circuit protection.
- 2 A rated current suitable for low-current industrial control and equipment circuits.
- K tripping characteristic suited to inductive loads and circuits with elevated starting currents.
- 15 kA rated ultimate short-circuit breaking capacity at 230 V AC according to IEC 60947-2.
- 10 kA UL 1077 interrupting rating at 240 V AC, 277 V AC and 60 V DC.
- Compact DIN-rail construction simplifies integration into machinery, control panels and automation systems.
Key Features
- ABB ST 200 M series miniature circuit breaker.
- 2 A rated current.
- Single-pole (1P) configuration.
- K-curve tripping characteristic.
- 15 kA Icu at 230 V AC according to IEC 60947-2.
- 10 kA UL 1077 interrupting rating.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- Thermal-magnetic circuit protection.
- Compact modular design for DIN-rail installation.
Reliable Circuit Protection for Industrial Systems
Miniature circuit breakers such as the ABB ST201M-K2 provide automatic protection against overload and short-circuit conditions. When current exceeds the permitted operating range, the thermal-magnetic tripping mechanism disconnects the protected circuit, helping protect wiring and connected electrical equipment from damaging overcurrent conditions.
The ST 200 M series is engineered for industrial applications where compact modular protection and dependable switching performance are required. The ST201M-K2's 2 A rating and K tripping characteristic make it particularly useful for low-current circuits supplying inductive loads or equipment with elevated starting currents, while its UL 1077 classification supports supplementary protection within electrical equipment.
Typical Applications
- Industrial control panels and automation systems.
- Low-current machine control and auxiliary circuits.
- Inductive loads with elevated starting currents.
- Control, signalling and instrumentation equipment.
- Supplementary protection within electrical equipment.
- Industrial machinery and DIN-rail control assemblies.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Series | ST 200 M | |
| SKU | ST201MK2 | |
| ABB order code | 2CDS271334R0277 | |
| EAN | 4016779017589 | |
| Product type | Miniature circuit breaker / supplementary protector | |
| Product group | UL 489 / UL 1077 MCB | |
| Number of poles | 1P | |
| Rated current | 2 A | |
| Tripping characteristic | K | |
| Rated operational voltage | 230 V AC according to IEC 60947-2 | |
| UL 1077 rated voltage | 240 V AC / 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 | |
| Rated service short-circuit breaking capacity (Ics) | 11.2 kA at 230 V AC | |
| UL 1077 interrupting rating | 10 kA at 240 V AC / 277 V AC / 60 V DC | |
| Protection principle | Thermal-magnetic | |
| Standards | UL 1077, CSA 22.2 No. 235, IEC/EN 60947-2 | |
| Mounting type | DIN rail | |
| Weight | 0.115 kg | |
| Packing unit | 10 pieces |
Frequently Asked Questions
What is the ABB ST201M-K2 used for?
The ST201M-K2 is a single-pole miniature circuit breaker and UL 1077 supplementary protector used to protect low-current industrial control, automation and equipment circuits against overload and short-circuit conditions.
What is the rated current of the ST201M-K2?
The ABB ST201M-K2 has a rated current of 2 A.
What tripping characteristic does the ST201M-K2 use?
The ST201M-K2 uses a K tripping characteristic, making it particularly suitable for inductive loads and circuits that can experience elevated starting currents.
What is the short-circuit breaking capacity of the ST201M-K2?
The ST201M-K2 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 V AC, 277 V AC and 60 V DC according to UL 1077.
What is the ABB order code for the ST201M-K2?
The ABB order code for the ST201M-K2 is 2CDS271334R0277.
ABB Circuit Protection for Industrial Applications
ABB ST 200 M miniature circuit breakers provide compact and dependable supplementary overcurrent protection for industrial control equipment, machinery and electrical systems, with a modular design engineered for demanding DIN-rail applications.
