Description
Advanced Arc Fault Detection with Type A RCBO Protection – Compact 1 Module Design
Hager ARL970U AFDD
The Hager ARL970U AFDD with 20A RCBO is a compact and intelligent protection device engineered for final circuits with moderate load demands and higher inrush currents. It combines arc fault detection, Type A residual current protection (30mA), and Curve C tripping characteristics in a single space-saving module.
Thanks to its 1-metre neutral fly lead, the ARL970U AFDD is fully compatible with Hager TPN Distribution Boards, making it simple to install even in constrained enclosures. With integrated diagnostics via Hager ProTools and Bluetooth-enabled updates through the Hager Pilot app, it offers fast, smart fault detection and safer long-term circuit protection.
Key Features – Hager ARL970U AFDD with 20A RCBO
- 20A, 6kA 1P+N RCBO with arc fault detection
- Tripping curve C, RCD type A (AC and pulsating DC sensitivity)
- 30mA residual current protection
- 1 module width (17.5mm) – compact and efficient
- 1 metre neutral fly lead for fast installation in Hager Invicta TPN boards
- Compatible with Hager consumer units and Invicta range
- ProTools onboard diagnostics with 8 LED status indicators
- Bluetooth support for configuration and updates via Hager Pilot app
- Suitable for residential, commercial, and retrofit use
- Compliant with Amendment 2 of the 18th Edition Wiring Regulations
- Independently certified to EN 61009-1 and EN 62606
Technical Overview – Hager ARL970U AFDD with 20A RCBO
Electrical performance
- Rated current: 20A (up to 22.6A at -25°C)
- Breaking capacity: 6kA (IEC 61009-1 and IEC 60898-1)
- Residual operating current (Idn): 30mA
- Operational voltage: 230V AC
- Frequency: 50Hz
Mechanical and installation
- Module width: 17.5mm
- Height: 125mm
- Depth: 70mm
- Terminal torque: top 2.4Nm, bottom 3.5Nm
- Top connection: screw terminal
- Bottom connection: bi-connect
- Pole configuration: 1P+N (double pole switching)
Environmental ratings
- Operating temperature: -25°C to +70°C
- Storage temperature: -25°C to +80°C
- Energy limitation class: I²t Class 3
- Ingress protection: IP20
Endurance
- Mechanical operations: 8,000 cycles
- Electrical operations: 2,000 cycles
What’s Included
- 1 x Hager ARL970U AFDD 20A Type A RCBO
Why Choose This Product?
The ARL970U AFDD is ideal for safeguarding 20A final circuits in residential and commercial environments. It eliminates the need for separate arc fault and RCD protection, saving valuable board space. The 1-metre fly lead ensures a tidy, hassle-free fit in Hager Invicta TPN boards. Its built-in Bluetooth and diagnostic features make commissioning and fault tracing fast and effective for today’s electricians.
Guarantee and Compliance
Supplied with a 1-year manufacturer’s warranty from Hager. Tested to EN 61009-1 and EN 62606. Fully compliant with Amendment 2 of the 18th Edition Wiring Regulations.
Summary
Hager ARL970U AFDD is a 20A Type A RCBO with arc fault detection and Curve C tripping. Compact, Bluetooth-enabled, and TPN board-ready, it provides smart circuit protection for modern electrical systems.
