Lewden RCBO-B10/30/1PNAB 1P+SN 10A 6kA 30mA Type-A B-Curve Reduced Height Bi-Directional RCBO 1 Module
The Lewden RCBO-B10/30/1PNAB is a compact, reduced height 1P+SN bi-directional RCBO that combines overload, short circuit and residual current protection in a single 1-module device. Designed for modern consumer units, it is ideal for installations incorporating bidirectional power flow, including EV charging, solar PV and battery storage systems.


within 1-2 working days
Lewden RCBO-B10/30/1PNAB Description
The Lewden RCBO-B10/30/1PNAB 1P+SN 10A 6kA 30mA Type A B-Curve Reduced Height Bi-Directional RCBO provides comprehensive circuit protection by combining the functions of an MCB and RCD into a space-saving 1-module device. Rated at 10A with a B-Curve tripping characteristic, 30mA Type A residual current protection and a 6kA breaking capacity, it protects against overloads, short circuits and earth leakage faults, making it suitable for lighting, control circuits and other lower current applications. Its bi-directional capability allows safe operation where power can flow in either direction, making it ideal for renewable energy installations, battery storage systems and EV charging applications. Featuring a 1P+SN switched neutral design for double pole isolation and a reduced height profile to maximise wiring space, the RCBO is manufactured to BS EN 61009-1 and is designed for reliable performance within Lewden consumer units.
Lewden RCBO-B10/30/1PNAB Features
- Lewden RCBO-B10/30/1PNAB reduced height bi-directional RCBO
- Rated current: 10A
- 1P+SN (Single Pole + Switched Neutral) configuration
- Provides double pole isolation for improved safety
- Type A RCD protection
- Residual operating current: 30mA
- B-Curve tripping characteristic
- 6kA short circuit breaking capacity
- Suitable for bi-directional power flow applications
- Ideal for solar PV, battery storage, EV charging and microgeneration systems
- Compact 1-module (18mm) width
- Reduced height 96mm design provides additional wiring space within the consumer unit
- Suitable for TN and TT earthing systems
- Rated voltage: 230V AC, 50Hz
- DIN rail mounting
- Terminal capacity: 16mm²
- Manufactured to BS EN 61009-1
- Designed for use with Lewden consumer units and distribution boards



