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2CDS381001R0577 ABB S301P-K50 Miniature Circuit Breaker – 1P – K – 50 A
ABB 2CDS381001R0577 S301P-K50 single-pole miniature circuit breaker with a 50 A rated current, Type K tripping characteristic and breaking capacity of up to 25 kA for industrial circuit protection.
£34.51
Why Choose the ABB 2CDS381001R0577 Miniature Circuit Breaker?
The ABB 2CDS381001R0577, also identified as the ABB S301P-K50, is a high-performance miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. As part of the advanced ABB System pro M compact S300P series, it provides dependable circuit protection where high breaking capacity and reliable operation are essential.
This single-pole circuit breaker combines a delayed thermal tripping mechanism for overload protection with an electromagnetic tripping mechanism for rapid short-circuit protection. Its compact modular design allows straightforward installation on a standard DIN rail, while compatibility with System pro M compact accessories supports flexible integration into control panels and distribution systems.
With a rated current of 50 A, a Type K tripping characteristic and a breaking capacity of up to 25 kA, the ABB 2CDS381001R0577 is particularly suitable for circuits supplying motors, transformers and other inductive loads that may generate elevated starting currents.
Key Advantages
- High-performance miniature circuit breaker for industrial installations.
- 50 A rated current for demanding electrical circuits.
- Type K tripping characteristic suitable for loads with elevated inrush currents.
- Breaking capacity of up to 25 kA for effective fault interruption.
- Compact, single-pole design for efficient use of distribution-board space.
- Compatible with ABB System pro M compact accessories and control-panel systems.
Key Features
- ABB System pro M compact S300P series.
- S301P-K50 miniature circuit breaker.
- Single-pole configuration.
- 50 A rated current.
- Type K tripping characteristic.
- 415 V AC and 125 V DC rated operational voltage.
- Thermal overload and electromagnetic short-circuit protection.
- Compact DIN rail mounted construction.
Reliable Circuit Protection for Industrial Installations
Miniature circuit breakers such as the ABB S301P-K50 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, machinery and connected equipment while reducing the risk of damage, unplanned downtime and electrical hazards.
The Type K tripping characteristic accommodates the temporary current surges generated when motors, transformers and other inductive loads start. This helps prevent unnecessary tripping while maintaining reliable protection against sustained overloads and dangerous fault currents.
Typical Applications
- Industrial control panels and switchboards.
- Motor and transformer supply circuits.
- Machine building and OEM equipment.
- Manufacturing and process automation systems.
- Commercial and industrial distribution boards.
- Transportation, renewable-energy and infrastructure installations.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Extended product type | S301P-K50 | |
| Model | 2CDS381001R0577 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Number of poles | 1 | |
| Number of protected poles | 1 | |
| Rated current | 50 A | |
| Tripping characteristic | Type K | |
| Rated AC voltage | Up to 415 V AC | |
| Rated DC voltage | Up to 125 V DC | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | Up to 25 kA | |
| Rated insulation voltage | 500 V | |
| Mounting type | 35 mm DIN rail | |
| Protection rating | IP20; up to IP40 when installed in a suitable enclosure | |
| Overvoltage category | IV | |
| Pollution degree | 3 | |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 69 mm | |
| EAN | 4016779079990 | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 and applicable UL standards | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB 2CDS381001R0577 used for?
It is used to protect industrial electrical circuits against overloads and short circuits, particularly circuits supplying motors, transformers and other inductive equipment.
What is the current rating of this circuit breaker?
The ABB 2CDS381001R0577 has a rated current of 50 A.
What does the Type K tripping characteristic mean?
A Type K circuit breaker is designed to tolerate the temporary inrush currents associated with motors, transformers and inductive loads while still providing effective overload and short-circuit protection.
What is the breaking capacity of the ABB S301P-K50?
The circuit breaker provides a breaking capacity of up to 25 kA, depending on the applicable voltage and product standard.
How is the ABB 2CDS381001R0577 installed?
The single-pole circuit breaker is designed for mounting on a standard 35 mm DIN rail inside a suitable electrical control panel or distribution enclosure.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are widely specified by electrical engineers, panel builders and machine manufacturers for dependable protection, high fault-breaking performance and straightforward integration into industrial electrical systems.
