Cloud Electronics RL-1MB - Manual (Page 5)

RL Series and RSL Series Installation Guide v2.0 5
Further, each model is available in three physical sizes:
UK versions:
These are available in black or white finish; the part number is suffixed
‘B’ or ‘W’ respectively. All UK versions of the plates fit standard UK-style
single-gang electrical back boxes, either surface-mounting or flush-fitting.
Recommended back box depth is 25 mm. Two M3.5 x 20 fixing screws are
supplied with each plate.
US versions:
The RL-1A, RSL-4A and RSL-6A are electrically and functionally identical
to the UK versions, but the faceplates have different physical dimensions
(4.51” x 2.76”) which allow them to be mounted into a standard US-style back
box (with vertical orientation). Both black and white finishes are available; the
part numbers are suffixed ‘B’ and ‘W’ respectively.
‘Media’ versions:
The RL-1M, RSL-4M and RSL-6M are electrically and functionally identical
to the UK versions, but are in the form of 50 mm x 50 mm Euro-modules,
which can be fitted into either UK or other European back boxes with the
appropriate mounting frame.