2CDS381103R0607 ABB S301P-K63NA Miniature Circuit Breaker – 1+NP – K – 63 A
ABB S301P-K63NA miniature circuit breaker with 63 A rated current, K tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
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Why Choose the ABB 2CDS381103R0607 Miniature Circuit Breaker?
The ABB 2CDS381103R0607 is a robust miniature circuit breaker (MCB) from the renowned ABB System pro M compact S300P series, engineered to deliver dependable protection against overloads and short circuits in industrial, commercial and specialist electrical installations.
Designed for applications requiring exceptionally high breaking capacity, the S301P-K63NA combines outstanding protection with simple installation and long service life. Its integrated trip indication, fail-safe terminals and compatibility with the ABB System pro M compact accessory range make it an excellent choice for panel builders, OEMs and electrical contractors.
With a 63 A rated current, K tripping characteristic and a 25 kA breaking capacity, the ABB 2CDS381103R0607 is ideal for protecting circuits supplying motors, transformers and other equipment with high inrush currents. The compact DIN rail mounted design allows quick installation inside distribution boards and industrial control panels.
Key Advantages
High-performance miniature circuit breaker for demanding electrical installations.
63 A rated current for higher load applications.
25 kA breaking capacity provides excellent short circuit protection.
K tripping characteristic suitable for circuits with high inrush currents.
Fully compatible with ABB System pro M compact accessories.
Key Features
ABB System pro M compact S300P series.
Manufacturer part number: 2CDS381103R0607.
63 A rated current.
K tripping characteristic.
25 kA short circuit breaking capacity.
DIN rail mounting.
Integrated front trip indicator.
Fail-safe screw terminals.
Suitable for 50 / 60 Hz electrical systems.
Reliable Circuit Protection for High Inrush Applications
The ABB S301P-K63NA automatically disconnects electrical circuits during overload or short circuit conditions, helping protect wiring, motors and connected equipment from costly damage and downtime.
Its K tripping characteristic is specifically suited to applications involving motors, transformers and inductive loads where higher starting currents occur. Combined with its high 25 kA interrupting capacity, it provides dependable protection even in demanding industrial environments.
Typical Applications
Industrial distribution boards.
Motor protection circuits.
Transformer protection.
Industrial control panels.
OEM machinery.
Commercial electrical installations.
Technical Specifications
Current
63 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M compact S300P
Model
S301P-K63NA
Part number
2CDS381103R0607
Product type
Miniature circuit breaker (MCB)
Rated current
63 A
Tripping characteristic
K
Number of poles
1P+N
Rated AC voltage
240 V AC
Rated DC voltage
72 V DC
Breaking capacity
25 kA
Frequency
50 / 60 Hz
Protection rating
IP20 (IP40 when installed within an enclosure)
Mounting type
DIN rail
Terminal type
Screw terminals
Dimensions (H × W × D)
approx. 88 × 35 × 69 mm
Weight
approx. 0.248 kg
HS Code
85362010
Country of Manufacture
Germany
Frequently Asked Questions
What is the ABB 2CDS381103R0607 used for?
This miniature circuit breaker protects electrical circuits against overloads and short circuits in industrial and commercial installations.
What is the rated current?
The ABB S301P-K63NA has a 63 A rated current.
What does the K tripping characteristic mean?
The K characteristic is designed for circuits with high inrush currents, making it suitable for motors, transformers and inductive loads.
How is this circuit breaker installed?
The breaker is designed for fast installation onto a standard DIN rail using secure screw terminals.
What is the short circuit breaking capacity?
The ABB 2CDS381103R0607 provides a high 25 kA breaking capacity for demanding electrical protection applications.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for their reliable protection, high breaking capacity and long-term performance.
Current
63 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M compact S300P
Model
S301P-K63NA
Part number
2CDS381103R0607
Product type
Miniature circuit breaker (MCB)
Rated current
63 A
Tripping characteristic
K
Number of poles
1P+N
Rated AC voltage
240 V AC
Rated DC voltage
72 V DC
Breaking capacity
25 kA
Frequency
50 / 60 Hz
Protection rating
IP20 (IP40 when installed within an enclosure)
Mounting type
DIN rail
Terminal type
Screw terminals
Dimensions (H × W × D)
approx. 88 × 35 × 69 mm
Weight
approx. 0.248 kg
HS Code
85362010
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...