DSN201E B16 A30 Residual Current Circuit Breaker with Overcurrent Protection
ABB DSN201E B16 A30 compact electronic RCBO featuring a 16 A current rating, Type A 30 mA residual current protection, B curve tripping characteristic and 6 kA breaking capacity.
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The ABB DSN201E B16 A30 is a compact residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase electrical circuits against overloads, short circuits and earth leakage faults. Part of the trusted ABB DSN201E series, it combines multiple protective functions within a space-saving single-module device, making it ideal for residential, commercial and light industrial installations.
Featuring a B tripping characteristic and Type A residual current protection, the DSN201E B16 A30 detects both sinusoidal AC and pulsating DC earth leakage currents commonly produced by modern electronic equipment. It is particularly suitable for socket outlets, lighting circuits and general-purpose final circuits.
With a rated current of 16 A, a residual operating current of 30 mA and a 6 kA breaking capacity, the ABB DSN201E B16 A30 provides dependable protection while occupying only one DIN rail module, helping maximise available space within consumer units and distribution boards.
Key Advantages
Combined residual current and overcurrent protection in a single compact device.
16 A rated current suitable for general-purpose final circuits.
30 mA residual current sensitivity for additional protection against electric shock.
Type A protection detects AC and pulsating DC residual currents.
6 kA short-circuit breaking capacity.
Compact single-module width saves valuable distribution board space.
Key Features
ABB DSN201E electronic RCBO series.
16 A rated current.
1P+N switched neutral configuration.
B curve tripping characteristic.
Type A residual current protection.
30 mA rated residual operating current.
6 kA breaking capacity.
One-module DIN rail mounted design.
Reliable Circuit and Earth Leakage Protection
The ABB DSN201E B16 A30 combines miniature circuit breaker and residual current protection into one compact device. It disconnects the electrical supply whenever overloads, short circuits or earth leakage faults occur, helping protect both people and electrical installations.
Its Type A residual current detection makes it suitable for modern installations containing electronic equipment, while the switched neutral design provides improved circuit isolation during maintenance and fault conditions.
Typical Applications
Residential consumer units.
Commercial distribution boards.
Socket outlet circuits.
Lighting installations.
Office and retail electrical systems.
Circuits supplying electronic appliances.
Technical Specifications
Manufacturer
ABB
Series
DSN201E
Model
DSN201E B16 A30
Product ID
2CDB352501R1165
EAN
4022903005285
Product type
Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
Rated current
16 A
Number of poles
1P+N
Number of protected poles
1
Neutral conductor
Switched
Tripping characteristic
B Curve
Residual current type
Type A
Rated residual operating current
30 mA
Rated operational voltage
230 / 240 V AC
Frequency
50 / 60 Hz
Rated short-circuit breaking capacity
6 kA
Rated insulation voltage
440 V
Rated impulse withstand voltage
2.5 kV
Energy limiting class
3
Protection rating
IP20
Mounting type
DIN rail
Module width
1 module
Terminal type
Cage screw terminals
Standards
IEC/EN 61009-1, IEC 61009-2-2, AS/NZS 61009.1
Dimensions (H × W × D)
approx. 86 × 17.8 × 70 mm
Weight
approx. 0.113 kg
Frequently Asked Questions
What is the ABB DSN201E B16 A30 used for?
The DSN201E B16 A30 protects single-phase electrical circuits against overloads, short circuits and earth leakage faults.
What is the rated current of this RCBO?
The ABB DSN201E B16 A30 has a 16 A rated current.
What is the difference between a B curve and C curve RCBO?
A B curve RCBO trips at lower instantaneous fault currents, making it ideal for general-purpose circuits such as lighting and socket outlets with low inrush currents.
What residual current sensitivity does it provide?
This RCBO provides a 30 mA residual operating current for additional protection against electric shock.
How much installation space does the RCBO require?
The DSN201E B16 A30 occupies just one DIN rail module, making it ideal where distribution board space is limited.
Trusted Protection for Modern Electrical Installations
ABB DSN201E RCBOs are trusted by electricians, panel builders and maintenance professionals for delivering dependable overload, short-circuit and residual current protection in compact electrical installations.
Manufacturer
ABB
Series
DSN201E
Model
DSN201E B16 A30
Product ID
2CDB352501R1165
EAN
4022903005285
Product type
Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
Rated current
16 A
Number of poles
1P+N
Number of protected poles
1
Neutral conductor
Switched
Tripping characteristic
B Curve
Residual current type
Type A
Rated residual operating current
30 mA
Rated operational voltage
230 / 240 V AC
Frequency
50 / 60 Hz
Rated short-circuit breaking capacity
6 kA
Rated insulation voltage
440 V
Rated impulse withstand voltage
2.5 kV
Energy limiting class
3
Protection rating
IP20
Mounting type
DIN rail
Module width
1 module
Terminal type
Cage screw terminals
Standards
IEC/EN 61009-1, IEC 61009-2-2, AS/NZS 61009.1
Dimensions (H × W × D)
approx. 86 × 17.8 × 70 mm
Weight
approx. 0.113 kg
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.
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Stock lines ready to ship
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Same day dispatches
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Customers supported
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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...