Fire Rated R5 Meter Box

Fire Rated Meter Box – Passive Fire Protection for Meter Boxes

This passive fire protection R5 meter box has a very similar design to the standard R5.  The main differences are that it has a high-temperature lock and a fire resistant back-board fitted.  The size options are identical to the standard:

The fire resistance test method followed that specified in BSEN1363 and BSEN1366.  The assessment report can be found here.  In the report, the R5s are referred to as samples B and D and the results are summarised in section 4.2 on page 6.

Key Features

Supplied in two halves allowing fitting of the box during building work and hanging of the door later when there is less chance of site damage. Designed so that the door can be hung on the left or right hand side of the pre-installed box to best suit local conditions.

Meter board and earthing stud fitted to the box as standard. Cable entry holes fitted with blind grommets to allow choice of positioning. All boxes fitted with slam lock and supplied with easy to handle triangular plastic key. Available in ESI Small, Medium and Large sizes.

Equipped with a fire resistant lock and fire rated to 60 minutes according to BS EN 1363-1 and BS EN 1366-3.


R5 Fire Rated Dimensions

SizeOverall Dimensions
(Height x Width x Depth)
Wall Opening
(Height x Width x Depth)
Small582 x 415 x 180530 x 360 x 1309
Medium657 x 470 x 180605 x 415 x 13010
Large732 x 555 x 180680 x 500 x 13013

R5 Fire Rated Documentation:

R5 Fire Rated Test Reports:

Delivery on Enclosures from Stock is 48hrs from receipt of order* or within 7 working days if powder coating is required.

We always work to despatch orders sooner if we can. 

* Receipt of order: payment received and order processed.


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