3wiring – Tempest Thunder User Manual
Page 15

Thunder Enclosure User Manual
page
15
3
Wiring
Electrical Preparation
All electrical work must be carried out by a properly licensed electrician. Failure to observe
this point will void the factory warranty for the Tempest Enclosure and possibly the equipment
housed inside.
1 Before starting work, switch off power to the branch circuit, carefully following lockout and
tag-out procedures. Failure to do so could cause serious injury or death.
2 Two electrical junction boxes will be required within a short distance of the Thunder
enclosure for:
AC supply wiring
DMX control wiring
Your Thunder enclosure is supplied fitted with two cable entry points, for Power and DMX signal
cables.
The cable entries are suitable for use with standard conduit fittings. US size ½”, international
20mm. Tempest recommends the use of flexible, outdoor-rated conduit for the last few feet (1m) to
the enclosure.
All junction boxes must be installed in accordance with local electrical codes and should be located
near the permanent installation of the enclosure. Each junction box requires a length of flexible
conduit, long enough to reach from the junction box to the enclosure conduit fittings. Leave slack
for positioning of enclosure, and enough space behind the enclosure for ventilation.
The AC supply must be protected by a fuse or circuit breaker of a rating suitable for the equipment.
Thunder Enclosure Power Requirement:
Standard Thunder enclosures with MiniDEC control
20W
Thunder enclosures with DEC3 control option
520W
The user may connect the fan and the equipment to the same switched supply, or run them
separately, according to need (see below).
Note that for temporary in stallation, the conduit fittings may be replaced with outdoor-rated cable
entry glands, at the user’s discretion.