Connect Load Conductors; Low-Voltage Application Notes - Leviton Topaz 24 Installation & Maintenance Manual

Step 8 - Connect load conductors
Follow the instructions here for each dimmer type you are installing.
15/20 AMP INCANDESCENT & LOW-VOLTAGE LOADS:
• Referring to Figure 4, connect the load conductor for the first (upper) dimmer to the upper load terminal, and the second load
conductor to the lower load terminal. Terminate their respective neutral conductors to the adjacent neutral terminals located directly
behind the load lug. Tighten all lugs according to Table II.
NEUTRAL BUS
Table II – Load Terminal Torque Ratings
LOAD TERMINALS (rated for copper wire only, and for 9O˚C ampacity wire)
14 AWG - 2 AWG
2
(2 - 6 mm )

LOW-VOLTAGE APPLICATION NOTES:

When using TOPAZ dimmer modules with transformer loads, the kW rating becomes the kVA rating. VA ratings are found by
multiplying the input voltage (12OV) by the current flowing in the transformer primary (120V side) for all transformers connected to the
dimmer module. When calculating VA load keep in mind that transformer losses add many VA to the published VA load rating of the
transformer. When current cannot be measured, derate the kW rating of the dimmer module by 25% and add up the kW ratings of the
lamps involved.
Caution:
Operation of a dimmed transformer loaded circuit with all lamps inoperative or removed may result in current flow or voltage in
excess of normal levels. To avoid possible transformer overheating and possible premature transformer failure, Colortran strongly
recommends the following:
a. Do not operate dimmed transformer loaded circuits without operative lamps in place; and
b. Replace burned out lamps as quickly as possible; and
c. Use transformers which incorporate thermal protection or fuse transformer primary windings to prevent transformer failure
due to over-current.
For best results transformers employed in transformer loaded dimmed circuits should be high-quality units well varnished and with an
extra margin of magnetic material.
LOAD
50 in.-lbs.
1A 1
1B 2
2A 3
4B 8
Page 5
Figure 4 – Load Terminal Wiring
Note: If 15 Amp and 20 Amp 120V
dimmers are intermixed on the premises,
they must both be wired as 20 Amp branch
circuits as the modules are not separately
keyed.