FuseBox SPD Consumer Unit 21 Way RCBO Kit with 15 Bi-Directional RCBOs
FuseBox F3021MZ Consumer Unit Bundle
The FuseBox SPD Consumer Unit 21 Way RCBO Kit brings together the F3021MZ F3 Series consumer unit with 15 compact FuseBox Type A Curve B bi-directional RCBOs, 6 solid DIN rail blanks and a FuseBox meter tails gland.
The RCBOs, blanks and gland are supplied separately and are not fitted into the consumer unit. They are included as part of the kit for installation and configuration on site, giving electricians full control over the final circuit arrangement.
The F3021MZ provides 21 usable ways together with a 100A main switch and integrated Type 2 surge protection, making this kit suitable for larger domestic installations, full rewires, EV charging, solar PV and battery storage applications where bi-directional RCBO protection is required.
Important – RCBO Selection and Default Configuration
This kit is supplied with 15 compact FuseBox Type A Curve B bi-directional RCBOs in our standard configuration unless you request a different amperage combination.
If you require different RCBO ratings, please add your required combination to the order notes at checkout or contact us by email or WhatsApp with your order number.
If no alternative RCBO requirements are received, the default configuration shown below will be dispatched.
Default RCBO Configuration
- 4 × B6A Type A Bi-Directional RCBOs
- 3 × B16A Type A Bi-Directional RCBOs
- 3 × B20A Type A Bi-Directional RCBOs
- 5 × B32A Type A Bi-Directional RCBOs
This FuseBox SPD Consumer Unit 21 Way RCBO Kit is supplied with Curve B bi-directional RCBOs only. Alternative available Curve B amperage ratings can be requested when ordering.
View the full FuseBox Bi-Directional RCBO range.
What’s Included?
- 1 × FuseBox F3021MZ 21 Way Consumer Unit
- 15 × FuseBox Type A Curve B Bi-Directional RCBOs
Default configuration: 4×6A, 3×16A, 3×20A and 5×32A. - 1 × 100A Main Switch
- 1 × Type 2 Surge Protection Device
- 6 × Solid DIN Rail Blanks
- 1 × FuseBox Meter Tails Gland
Please note: The RCBOs, blanks and meter tails gland are supplied loose as part of the bundle and are not pre-installed into the consumer unit.
Key Features
- 21 usable ways
- 15 compact FuseBox Type A Curve B bi-directional RCBOs included
- Default RCBO mix: 4×6A, 3×16A, 3×20A and 5×32A
- Alternative available Curve B ratings can be requested when ordering
- 100A main switch
- Integrated Type 2 SPD
- 6 solid blanks included
- FuseBox meter tails gland included
- F3 Series design with generous internal wiring space
- Lift-off DIN rail
- Suitable for installations requiring bi-directional RCBO protection
- RCBOs and accessories supplied separately for on-site fitting
Bi-Directional RCBO Protection
The included FuseBox RCBOs are Type A, Curve B and bi-directional. They are designed for installations where current may flow in either direction, making them suitable for modern electrical systems incorporating EV chargers, solar PV and battery storage.
These compact bi-directional RCBOs are different from the standard-size RTA RCBOs supplied with our standard FuseBox consumer unit kits. This kit is specifically supplied with the bi-directional RCBO range.
Choosing Your RCBOs
The standard configuration for this FuseBox SPD Consumer Unit 21 Way RCBO Kit is 4×6A, 3×16A, 3×20A and 5×32A. If this configuration suits your installation, no further action is required.
If you require a different combination of available Curve B bi-directional RCBO ratings, add the required amperages to the order notes during checkout. You can also contact us by email or WhatsApp with your order number immediately after placing the order.
If no alternative requirements are received, the standard RCBO configuration will be dispatched automatically.
Matching Top Trunking Kit Available
A matching cut-to-size top-entry trunking kit is available for the F3021MZ. The MAK50/50/F3021MZ kit is supplied pre-cut to approximately 480mm with two end caps for a neat top cable entry installation.
View the matching top trunking kit for FuseBox F3021MZ & F3022M.
Why Choose This FuseBox 21 Way RCBO Kit?
The FuseBox SPD Consumer Unit 21 Way RCBO Kit combines a large-capacity F3 Series consumer unit, compact bi-directional circuit protection and essential installation accessories in one convenient bundle. It simplifies ordering while leaving the final RCBO positioning and wiring to the installer on site.
With 15 RCBOs included and 6 spare ways remaining, the kit provides useful expansion capacity for larger installations. The standard Curve B RCBO configuration helps speed up dispatch, while alternative available Curve B amperage combinations can still be requested where required.
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