TR-RT LED lighting controllers - User Manual
6
Connections
See
Section 12, Reference information
for information about connection
ratings
6.1
Power supply
In the unlikely event of a fault in the TR-RT, the maximum power
dissipation in the unit can be:
Power supply voltage x Max current delivered by power supply
Either limit the power supply output current so that the TR-RT cannot
dissipate more than 30W, or mount the unit in a fire enclosure.
Choose a PSU that is designed to limit its output current, or by setting the
current limit on the supply (if this feature exists), or use a fuse. The fuse
should be de-rated if mounted in an enclosure, as the temperature can be
higher than the ambient temperature.
The external power supply must be capable of supplying at least the
average output power for all active channels.
We recommend you use a regulated power supply with 100% short circuit
protection. If however a non-regulated power supply is used, then the
maximum ripple voltage of the power supply must not exceed 10% of the
DC voltage.
Route the low voltage and mains wiring separately. If they must be loomed
together, ensure that the insulation rating of the low voltage wiring is
sufficient, or that you use supplementary insulation. The input connections
are illustrated below:
6.2
Lighting output
The lighting connections can exceed 46.7V but should not exceed 70V
DC. Pulse peak voltages above 72V are considered hazardous. The
lighting connections must be shielded so they cannot be being touched
both within the light and along the whole length of the cable.
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