WattMaster WCC III part 14 - Manual (Page 10)

WCC III Technical Guide 13B-8
13B. WCC III - MCD INSTALLATION GUIDE
act of 1990/2009. A minimum of two inches of clearance should
be maintained all around the WCCIII-MCD2, with the exception
of the bottom side of the WCCIII-MCD2 where four inches of
clearance is required for connector’s clearances.
When mounting the WCCIII-MCD2, proper minimum clearance
distances must be met and must be maintained. Space must be
allowed for proper ventilation. When mounting in an electrical
enclosure, be sure that you would avoid mounting the WCCIII-
MCD2 above any heat generating sources such as transformers,
and energized contactors, etc. Some thought must be given to the
possibility of adding ventilation to the NEMA 1 rated enclosure
that the WCCIII-MCD could be mounted in if so mounted.
WCCIII-MCD2 Mounting Requirements
WCCIII-MCD2 Mounting Requirements:
The WCCIII-MCD2 was designed to be wall mounted, and
therefore should be mounted on a wall or in a NEMA 1 rated
electrical enclosure.
The WCCIII-MCD2 should be mounted in an air-conditioned
space (The ambient temperature must be between 50 and 100
°F, and the relative humidity must be kept between 0 and 90%
(non-condensing)). Setting the WCCIII-MCD2 on a desktop is
possible, but not recommended due to top and bottom ventilation
considerations.
Mounting in an NEMA type 1 electrical enclosure is possible
providing that there is enough ventilation and minimum clearance
for ventilation. The height of mounting the WCCIII-MCD2 should
be at eye level or with local codes on compliance with the ADA
Figure 4: Top View - Minimum Mounting Distance Clearances