Lewden RCBO-B20/30/SPA – 20A Type A RCBO with 30mA Sensitivity
The Lewden RCBO-B20/30/SPA is a compact and highly reliable 20A Type A RCBO designed to deliver comprehensive circuit protection for residential, commercial, and light industrial electrical installations. Engineered for modern safety standards, this residual current circuit breaker with overcurrent protection (RCBO) combines overload, short-circuit, and residual current detection in a single DIN rail-mountable unit.
Designed with a B-curve tripping characteristic, the Lewden RCBO responds rapidly to fault conditions, disconnecting the circuit before damage can occur.
The 30mA residual current sensitivity protects against electric shock and earth faults, ensuring user safety in everyday environments. It's ideally suited for consumer units and distribution boards, where compact size and efficient protection are essential.
This RCBO also features bi-directional power flow capability, enabling versatile installation options and improved system integration. Its Type A RCD function provides enhanced fault detection, including protection against pulsating DC components, which is especially important in circuits with modern electronic appliances and devices.
Key Features and Benefits
- Rated Current: 20A
- It is ideal for standard domestic and commercial circuit protection.
- Residual Current Sensitivity: 30mA
- Offers adequate protection against electric shock and earth leakage.
- Type A Residual Current Device
- It detects both AC and pulsating DC residual currents, making it suitable for circuits with appliances like induction hobs and EV chargers.
- B-Curve Tripping Characteristic
- It responds rapidly to short circuits and overloads, making it suitable for lighting and general-purpose socket circuits.
- Bi-directional Power Flow Design
- Allows for flexible installation without restrictions on power input direction.
- DIN Rail Mountable
- Quick and secure installation in consumer units and distribution boards.
- Compact Dimensions: 96mm (H) x 18mm (W) x 76mm (D)
- A space-saving design ideal for installations with limited space.
- Cable Compatibility: 1mm² to 16mm²
- Accommodates a wide range of standard cable sizes for varied applications.
- Solid Neutral Design
- Ensures secure circuit isolation and enhances operational safety.
- Complies with BS EN 61009-1 Standards
- Meets the UK and international electrical safety regulations for peace of mind.
Applications
The Lewden RCBO-B20/30/SPA is suitable for:
- Domestic consumer units
- Commercial distribution boards
- Light industrial panels
- Circuits requiring enhanced protection (e.g. sockets, heating, lighting)
- Installations where DC fault current may be present
Whether upgrading an existing distribution system or installing a new one, this RCBO offers a safe, compliant, and flexible solution that meets current UK electrical standards.
Technical Summary
- Product Code: RCBO-B20/30/SPA
- Voltage Rating: 230-240V AC
- Frequency: 50-60Hz
- Poles: 1P + N
- Trip Type: Type A (AC + pulsating DC)
- Breaking Capacity: 6kA
- Mounting: DIN rail
- Weight: 0.17kg
