SKU:2CSR255051R1105Alt SKU:DSE201 B10 AC30 - N BlueMPN:2CSR255051R1105
DSE201 B10 AC30 – N Blue Residual Current Circuit Breaker with Overcurrent Protection
ABB DSE201 B10 AC30 RCBO with a 10 A rated current, Type AC 30 mA residual current protection, B curve tripping characteristic and 6 kA breaking capacity.
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The ABB DSE201 B10 AC30 is a compact residual current circuit breaker with overcurrent protection (RCBO) designed to safeguard single-phase electrical circuits against overloads, short circuits and earth leakage faults. As part of ABB's dependable DSE201 series, it combines miniature circuit breaker and residual current protection into a single DIN rail mounted device, helping to save valuable space within consumer units and distribution boards.
Featuring a B tripping characteristic and Type AC residual current protection, the DSE201 B10 AC30 is well suited to residential and light commercial installations supplying conventional electrical loads. Its B curve characteristic provides fast disconnection for circuits with relatively low inrush currents, making it ideal for lighting and general-purpose socket circuits.
With a 10 A rated current, 30 mA residual current sensitivity and a 6 kA breaking capacity, the ABB DSE201 B10 AC30 delivers dependable protection while occupying just one DIN rail module, simplifying installation and reducing panel space requirements.
Key Advantages
Combined residual current and overcurrent protection in one compact device.
10 A rated current ideal for lighting and low-power final circuits.
30 mA residual current sensitivity for additional protection against electric shock.
Type AC residual current protection for alternating sinusoidal earth leakage currents.
6 kA short-circuit breaking capacity.
Compact single-module DIN rail construction.
Key Features
ABB DSE201 RCBO series.
10 A rated current.
1P+N configuration.
B curve tripping characteristic.
Type AC residual current protection.
30 mA rated residual operating current.
6 kA breaking capacity.
DIN rail mounted with screw terminals.
Reliable Circuit and Earth Leakage Protection
The ABB DSE201 B10 AC30 combines thermal-magnetic overcurrent protection with residual current protection in one compact device. It disconnects the supply whenever overloads, short circuits or earth leakage faults occur, helping protect people, wiring systems and connected electrical equipment.
Its Type AC residual current protection is designed for installations where sinusoidal alternating residual currents are expected, while the B curve characteristic makes it particularly suitable for domestic lighting and socket outlet circuits with relatively low inrush currents.
Typical Applications
Residential consumer units.
Lighting circuits.
General socket outlet circuits.
Small commercial installations.
Schools and public buildings.
Healthcare and office environments.
Technical Specifications
Current
10 A
Phase
Single Phase
Manufacturer
ABB
Series
DSE201
Model
DSE201 B10 AC30
Product ID
2CSR255051R1105
Product type
Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
Rated current
10 A
Number of poles
1P+N
Tripping characteristic
B Curve
Residual current type
Type AC
Rated residual operating current
30 mA
Rated operational voltage
240 V AC
Frequency
50 / 60 Hz
Rated short-circuit breaking capacity
6 kA
Mounting type
DIN rail
Terminal type
Screw terminals
Protection rating
IP20
Mechanical endurance
20,000 operations
Dimensions (H × W × D)
Approx. 100 × 17.6 × 68.9 mm
Standards
IEC/EN 61009-1
Frequently Asked Questions
What is the ABB DSE201 B10 AC30 used for?
The DSE201 B10 AC30 protects single-phase electrical circuits against overloads, short circuits and earth leakage faults.
What is the rated current of this RCBO?
The ABB DSE201 B10 AC30 has a 10 A rated current.
What does Type AC residual current protection detect?
Type AC protection detects sinusoidal alternating residual currents typically found in conventional electrical installations.
What does the B curve tripping characteristic mean?
A B curve RCBO trips quickly at relatively low fault currents, making it ideal for lighting and general-purpose socket circuits.
Is this RCBO suitable for DIN rail installation?
Yes. The DSE201 B10 AC30 is designed for quick and simple installation onto a standard DIN rail.
Trusted Protection for Everyday Electrical Installations
ABB DSE201 RCBOs are trusted by electricians, contractors and panel builders for providing reliable overload, short-circuit and residual current protection in residential and commercial electrical installations.
Current
10 A
Phase
Single Phase
Manufacturer
ABB
Series
DSE201
Model
DSE201 B10 AC30
Product ID
2CSR255051R1105
Product type
Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
Rated current
10 A
Number of poles
1P+N
Tripping characteristic
B Curve
Residual current type
Type AC
Rated residual operating current
30 mA
Rated operational voltage
240 V AC
Frequency
50 / 60 Hz
Rated short-circuit breaking capacity
6 kA
Mounting type
DIN rail
Terminal type
Screw terminals
Protection rating
IP20
Mechanical endurance
20,000 operations
Dimensions (H × W × D)
Approx. 100 × 17.6 × 68.9 mm
Standards
IEC/EN 61009-1
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
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...