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City Plumbing GB£96.74Visit shop Hager Switch Disconnector Incomer Consumer Unit 100 A Vml120
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B&Q£109.75Visit shop B&Q - Generic Hager Vml120 Consumer Unit 20 Way 100A Mains Switch
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The Hager 20-way consumer unit is designed for professional electricians and property owners seeking a robust, fire-resistant solution for modern domestic circuit protection. It offers the benefit of high-capacity circuit management with full compliance to Amendment 3 of the BS 7671 standards, ensuring maximum safety and durability. Note that while this unit is highly versatile, it requires professional installation by a qualified electrician due to the technical nature of high-voltage electrical distribution systems.
| Model Part Number | Vml120 |
|---|---|
| Brand | Hager |
Yes, it is fully compliant with Amendment 3 to BS 7671: 2008.
No, the unit is supplied as an enclosure with a 100A switch isolator. RCBOs must be purchased and installed separately.
No. Due to electrical safety laws, this must be installed by a qualified electrician and tested/certified upon completion.
RCBOs provide individual circuit protection, preventing an entire house from losing power if a single circuit develops a fault.
The metal construction is required under Amendment 3 of the wiring regulations to provide fire containment within the home.
Identify if the issue is a genuine earth fault or a transient surge. Check the circuit for insulation resistance issues.
Ensure the switch is not obstructed by wiring or internal debris. If resistance persists, check for mechanical damage.
Verify that all mounting screws are fully tightened and that the wall substrate is structurally sound.
Installation must be performed by a qualified electrician in accordance with the current BS 7671 wiring regulations. Before beginning, ensure the main supply is completely isolated. When mounting, use all provided fixing points to secure the unit to a flat, non-combustible surface. The unit is compatible with standard Hager RCBOs. Maintenance consists primarily of periodic testing of the installed RCDs or RCBOs via the integrated 'test' buttons to ensure functionality. Keep the enclosure free of dust and debris, and ensure the front cover is correctly seated and screwed down to maintain its fire-rated integrity.
