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FuseBox F3021MZ Bi Directional SPD Consumer Unit Kit – with 15 RCBOs

SKU: F3021MZ/BD/KIT/15
Delivery usually within 2 - 3 working days *

FuseBox F3021MZ kit includes 15 bi-directional RCBOs, integrated SPD (no MCB needed), main switch, and 5 blanks. Supplied loose for installer assembly. Suitable for domestic use, EV charging, solar panels, and battery storage systems.

£ 281 .56 EX VAT
£ 337 .87 IN VAT
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Description

15 RCBO Consumer Unit Kit for EV, Solar, Battery & General Electrical Installations

⚡ FuseBox F3021MZ Bi-Directional SPD Consumer Unit Kit – with 15 RCBOs

The FuseBox F3021MZ Bi-Directional SPD Consumer Unit Kit is a premium 21-way solution from the F3 series, carefully assembled by Electrical4Less to give electricians a complete, ready-to-configure kit for a wide range of installations. All components are boxed together but not pre-installed, allowing full flexibility on-site.

This FuseBox Kit with 15 Bi-Directional RCBOs is compatible with standard domestic circuits as well as renewable and smart energy applications. With 15 bi-directional Type A RCBOs included, it’s an ideal choice for setups involving EV charge points, solar PV, or battery systems, where current can flow in both directions.

Included in the bundle is the FuseBox F3021MZ 21-way F3 board, a 100A main switch, integrated Type 2 SPD (no MCB required), 15 x Type A Bi-Directional RCBOs (your choice of Curve B or C, 6A–40A), 5 solid DIN rail blanks, and a FuseBox cable gland.


Key Features – FuseBox F3021MZ with 15 Bi-Directional RCBOs

  • Electrical4Less trade bundle – full kit supplied loose for installer configuration
  • 21 usable ways – spacious F3 board with 100A isolator
  • Integrated Type 2 SPD – no separate MCB required
  • 15 x Type A 30mA RCBOs (Curve B or C, 6A–40A) – bi-directional functionality
  • Designed for domestic and dual-current systems (solar, EV, battery storage)
  • Includes meter tails gland and 5 solid DIN rail blanks

Technical Overview – FuseBox Kit with 15 Bi-Directional RCBOs

  • Consumer Unit: FuseBox F3021MZ – 21 usable ways
  • Main Switch: 100A DP isolator (supplied loose)
  • SPD: Type 2, integrated – no MCB needed
  • RCBOs: 15 x Type A, 30mA, Curve B or C, 6A–40A
  • RCBOs are bi-directional – support export/import energy applications
  • Cable Gland: FuseBox meter tails gland
  • Blanks: 5 x solid DIN rail blanks
  • IP Rating: IP2XC
  • Compliance: BS EN 61439-3

What’s Included

  • 1 x FuseBox F3021MZ 21-Way Consumer Unit (F3 Series)
  • 1 x 100A DP Main Switch (boxed separately)
  • 1 x Type 2 SPD (factory-fitted, no MCB needed)
  • 15 x RCBOs – Type A, 30mA, Curve B or C (as selected)
  • 1 x FuseBox meter tails gland
  • 5 x Solid DIN rail blanks
  • Terminal bars, busbar, fixing kit, and circuit label pack

Note: Supplied loose and unassembled. You configure the installation to your spec.


Choose Your RCBO Configuration

Pick your 15 RCBOs with ease:
✅ Add a note during checkout (e.g. 3 x B6A, 6 x C16A, 6 x B32A)
✅ Or WhatsApp us after placing your order with your RCBO preferences


Matching Top Trunking Kit Available

At Electrical4Less, we cut trunking so you don’t have to. This top-entry kit (SKU: MAK50/50/F3021MZ) is approx. 480mm wide and includes 2 end caps—made to fit this board perfectly.
✔️ Clean. Fast. No fuss.

View the matching top trunking kit for FuseBox F3021MZ & F3022MM


✅ Why This Kit?

Whether you’re wiring a modern home or upgrading to accommodate EVs, solar panels, or battery storage, this kit delivers maximum flexibility. With all parts boxed together and bi-directional RCBOs included, it’s the all-in-one solution for the 18th Edition installer.


About FuseBox

FuseBox is a trusted UK brand known for simplifying consumer unit installations. Their F3 series features smart layouts, enhanced cable space, and integrated SPD technology—ideal for today’s complex systems and regulation compliance.


️ Guarantee & Compliance

All kit components meet BS EN 61439-3, are CE marked, and are supported by FuseBox’s manufacturer-backed warranty.


Related Products & Tags

Browse All Bi-Directional RCBO Options from FuseBox
See More FuseBox Consumer Units in the F3 Series






Additional information

Brand

FuseBox

Consumer Unit Type

18th Edition Consumer Unit, Consumer Unit Kit, Populated Consumer Unit, RCBO Consumer Unit, SPD Main Switch Consumer Unit

Depth (mm)

113

Height (mm)

259

Product Type

Consumer Unit

Usable Ways

21

Width (mm)

486

Downloads

Delivery Information

This product will be ordered from one of ours suppliers. The usual dispatch time to you is displayed above. You will receive a notification if there are any delays once your order is placed.

Technical Support

Fusebox Technical Support: 01563 533 554
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