Fusebox F3023MZ 23 Way 100A Main Switch Consumer Unit with Type 2 SPD
£214.20
Ex. VAT
(over £100+VAT, applies to zone A only , £6 +VAT otherwise)
Order online & collect in store
This is the Fusebox F3023MZ 23 Way 100A Main Switch Consumer Unit with Type 2 SPD – Dual-Row Surge-Protected Distribution Board available at SparksDirect.co.uk for the best price.
Please note: this Fusebox Consumer unit is unpopulated; the MCBs need to be ordered separately. See the Accessories section for more accessories for this board, and see the 6kA Standard RCBOs (codes starting with RTA06), Compact RCBO type A curve B (RTAMB), compact RCBO type A curve C (RTAMC), Bi-directional mini RCBO type A curve B (RTAMBxxBD), Bi-directional mini RCBO type A curve C (RTAMCxxBD), AFDDs (AFDD0xx), MCB curve B (MT06B), MCB curve C (MT06C), or Henley Connector Blocks. To be ordered separately.
The Fusebox F3023MZ is a professional-grade 23 Way consumer unit crafted for larger domestic, garage or light-commercial electrical installations that demand extensive circuit protection and built-in surge defence. This dual-row (11+12) board comes complete with a 100A double-pole main switch, giving secure isolation of the incoming supply and simplifying wiring and maintenance.
What sets the F3023MZ apart is its integrated Type 2 Surge Protection Device (SPD). This SPD links directly to the busbar — meaning there’s no need for a separate MCB to protect the surge module — so you retain every outgoing way for essential circuits such as lighting, sockets, cooker lines or accessory feeds.
Built with a sturdy powder-coated steel enclosure, reinforced grommet strip, captive front screws and multiple cable knockouts, the board is fully compliant with BS EN 61439-3 and 18th Edition wiring regulations. Its design supports professional installations that require both organised circuit distribution and transient over-voltage protection.
Technical Specifications
- Product: Fusebox F3023MZ 23 Way Main Switch Consumer Unit with SPD
- Brand: Fusebox
- Series: F3 Series Surge Protection Consumer Units
- Current Rating: 100A double-pole main switch (incomer included)
- Usable Outgoing Ways: 23 ways (split as 11 + 12 dual row)
- Surge Protection: Type 2 SPD (integrated direct-to-busbar)
- Standards Compliance: BS EN 61439-3, 18th Edition wiring regulations
- Voltage Rating: 230V AC, 50/60 Hz
- IP Rating: IP2XC (internal finger-safe protection)
- Enclosure Material: 1mm electro-galvanised steel with RAL 9001 white powder-coated finish
- Dimensions (Approx): 512mm (height) x 306mm (width) x 113mm (depth)
- Weight: 8kg
- Mounting: Surface-mount board
- DIN Rail: 35mm raised removable DIN rail for mounting RCBOs/MCBs
- Earth & Neutral Bars: Top-mounted clearly labelled terminals
- Cable Knockouts: Multiple 20–32mm round (top/bottom/rear) and 40mm (sides)
- Tail Clamp: Included (DIN rail-mounted) for secure cable entry
- Finish: White metal powder coating
- Accessory Pack: Busbar, circuit identification labels, reinforced grommet strip, captive front screws
- Suitable For: Large residential or light commercial installations requiring surge protection and expanded circuit capacity
Three Reasons Customers Recommend This Product
- Built-In Surge Protection Without Losing Ways: The integrated Type 2 SPD connects directly to the busbar, saving an outgoing way and giving full surge defence without sacrificing circuit slots — ideal for busy distribution boards with many circuits.
- Large Dual-Row Capacity for Complex Systems: With 23 usable ways in a dual-row layout, the F3023MZ provides space for multiple RCBOs, MCBs and specialised circuits, making it suitable for extensive domestic or commercial installations.
- Installer-Friendly & Regulation-Compliant: Electricians appreciate the reinforced grommet strip, captive front screws, multiple knockout options and tail clamp — all wrapped in a board that meets BS EN 61439-3 and 18th Edition standards for safety and performance.
The Fusebox F3023MZ 23 Way Main Switch Consumer Unit with Type 2 SPD is a high-capacity, surge-protected distribution board that pairs extensive circuit capacity with integrated transient over-voltage defence. With a robust metal enclosure, regulation-compliant design and installer-focused features, it’s a dependable solution for larger electrical installations needing compliant protection and tidy wiring.
Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.
Shipping
Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.
If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.
Returns
We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.
