
Hager ARR920U 1 Module 2 Pole B Curve Type A RCBO with Dangerous Arc Detection 20A 6kA 30mA
ARR920U
Hager ARR906U 1 Module 2 Pole Type B RCBO with Dangerous Arc Detection 20A 6kA 30mA – Advanced Circuit Protection
The Hager ARR906U is a next-generation Arc Fault Detection Device (AFDD) with built-in Type A RCBO functionality, providing comprehensive circuit protection against arc faults, short circuits, and earth leakage. Designed to fit seamlessly into Hager consumer units, this compact 1-module RCBO is packed with advanced fault-finding and safety features for professional electricians.
- Arc Fault Detection (AFDD) – Utilises sophisticated algorithms to monitor electronic signatures and detect dangerous arc faults.
- Integrated RCBO Functionality – Combines MCB overcurrent protection with RCD earth fault detection for complete safety.
- Type B Tripping Characteristics – Trips between 3 to 5 times full load current, making it suitable for residential applications.
- 6kA Breaking Capacity – Provides robust short-circuit protection.
- On-Board Diagnostics (ProTools) – Built-in software identifies 8 diagnostic statuses, streamlining fault-finding and troubleshooting.
- Hager Pilot App Compatibility – Offers step-by-step diagnostic guides to help electricians quickly identify and resolve issues.
- Single Module Compact Design – Saves space in Hager domestic consumer units while maintaining full protection.
Technical Specification
- Type: Single module, 2 pole RCBO with AFDD
- Tripping Curve: Type B
- Rated Current: 20A
- Breaking Capacity: 6kA
- Rated Residual Current: 30mA
- Arc Fault Detection: Yes
- On-Board Diagnostics: Yes (ProTools)
- App Compatibility: Hager Pilot App
- Mounting: DIN rail
- Consumer Unit Compatibility: Hager domestic units
✅ Choose the Hager ARR906U RCBO with Arc Fault Detection for state-of-the-art safety, enhanced diagnostics, and complete circuit protection!

Trip Type | B Curve Type A |
Short Circuit Rating | 6kA |
Cable Capacity | 16 mm2 |
Sensitivity | 30 mA |
Product | RCBO |
Type | Singe Pole Compact |
Ingress Protection | IP20 |
Voltage | 230 V |
Pole Configuration | SP+N |
Mounting | DIN Rail |
Width | 17.5 mm |
Depth | 70 mm |
Current Rating | 20A |
Standards | BSEN61009 |
Rcd Sensitivity | 30 mA |
Number Of Poles | Double Pole (2P) |
Height | 125mm |
Number Of Modules | 1 |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.