
Hager ARM920U MCB with Dangerous Arc Detection 1M 20A B Curve 6kA
ARM920U
Hager ARM920U MCB with Arc Fault Detection – Advanced Safety for Domestic & Commercial Installations
The Hager ARM920U delivers dual protection against overcurrent and arc faults in one compact device. Its B-curve tripping performance is well-suited to general-purpose domestic and light commercial loads.
- Arc Fault Defence: Interrupts dangerous arcs before they can cause fires.
- Combined Protection: MCB overcurrent and AFDD technology in a single unit.
- B-Curve Profile: Ideal for resistive loads with minimal inrush currents.
- Compact Build: Saves space in consumer unit layouts.
- Robust Design: Ensures dependable, long-lasting performance.
Technical Specification
- Poles: 1P
- Rated Current: 20A
- Tripping Curve: B-curve
- Rated Short-Circuit Capacity: 6kA
- Arc Fault Detection: Integrated AFDD
✅ Choose the Hager ARM920U for space-saving, reliable, and safe circuit protection.
Trip Type | B Curve |
Short Circuit Rating | 6kA |
Product | MCB |
Type | Single Pole |
Current Rating | 20A |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 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.