Arc Fault Protection and 1P+N RCBO for Domestic and Light Commercial Use
Hager ARL920U AFDD RCBO 20A
The Hager ARL920U AFDD RCBO 20A is a compact 1-module protection device that combines overcurrent, residual current, and arc fault protection in a single unit. Rated at 20A with B curve tripping, it is ideal for lighting and socket circuits in homes and small commercial installations.
It includes Type A 30mA RCD sensitivity, 6kA short-circuit capacity, and 1P+N switching, ensuring reliable protection from shocks, surges, and fire risk. A 1-metre neutral fly lead makes installation easy within Hager TPN Distribution Boards and consumer units.
Key Features – Hager ARL920U AFDD RCBO 20A
- 20A Rated Current – Supports standard residential circuits
- 1 Module Width (17.5mm) – Space-efficient for modern boards
- 6kA Short-Circuit Capacity – Conforms to IEC 61009-1 & 60898-1
- 30mA Type A RCD – Sensitive to AC and pulsating DC leakage
- Built-in Arc Fault Detection – Detects and disconnects dangerous arcs
- B Curve Tripping – For typical domestic startup loads
- 1P+N Configuration – Switched neutral for full disconnection
- 1m Neutral Fly Lead (LFL) – Easy to fit into Hager installations
- Fully Compliant – Meets Amendment 2 of the 18th Edition Wiring Regs
Technical Overview – Hager ARL920U
Electrical Performance
- Rated Current: 20A
- Voltage: 230V AC (Op), 400V (Insulation)
- Breaking Capacity: 6kA
- Impulse Withstand Voltage: 4kV
- Frequency: 50Hz
- Residual Current: 30mA Type A
- Power Loss: 6.1W
Mechanical & Installation
- Pole Configuration: 1P+N
- Top Terminal: Screw – 2.4 Nm
- Bottom Terminal: Bi-connect – 3.5 Nm
- DIN Rail Mounting
- Dimensions: 125mm H × 17.5mm W × 70mm D
Environmental Ratings
- Operating Temp: –25°C to +70°C
- IP Rating: IP20
Endurance
- Mechanical: 8,000 operations
- Electrical: 2,000 cycles
What’s Included
- 1 × Hager ARL920U AFDD RCBO 20A with 1m Neutral Fly Lead
✅ Why Choose the Hager ARL920U?
- Combines overload, earth leakage, and arc fault protection
- Slim 1-module format fits neatly into dense boards
- Built-in AFDD offers early fire prevention
- Designed for residential and light commercial circuits
- Trusted quality from Hager, fully compliant with latest standards
️ Warranty & Compliance
- 1-Year Manufacturer Warranty
- Certified to EN 61009-1 and EN 62606
- Complies with Amendment 2 of the 18th Edition Wiring Regulations
Summary
The Hager ARL920U AFDD RCBO 20A offers arc fault, overload, and residual current protection in one 1P+N device. Designed for safe, space-efficient use in Hager distribution boards, it simplifies compliance and speeds up installation.
