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NIGHT SCAN VERTICAL, VERTICAL COMPLETE, AND VERTICAL HDT
OPERATING INSTRUCTIONS
TP-4836201-H
MAY 2021
Table 5-4 shows some example current calculations. Your mast may have different results based
on the installed light type and number of lights. In Example 1 (Table 5-4), the lights in the system
are a total of 500 watts. This is divided by two to get the watts per side. The result is then divided
by the voltage (12) to get the amps (21 rounded). The wires in this example should be able to
carry at least 21 amps with minimal voltage drop.
It is the responsibility of the installer to provide over-current protection for both lighting circuits.
The over-current protection on each circuit should be sized for the calculated current draw for the
installed lights (and not based on wire size current capacity). It is also the responsibility of the
installer to provide a means to remove/isolate power from the mast light circuits and permit the
operator to follow proper lock-out tag-out procedures for maintenance or troubleshooting.
Light power cables can be purchased from The Will-Burt Company or provided by the installer.
For CE conformity, the installer must provide the light power cables in conformance with
applicable Directives. Cables supplied by The Will-Burt Company do not have blue color for
conductor identification.
If the cables are supplied by the installer, the cables must:
• Be type SOOW or equivalent.
• Be 10 AWG (or 6 mm
2
) conductors.
• Have a maximum length for acceptable voltage drop of 70 feet (21 meters).
Light power lands on a connector on the side of the control box (see Figure 5-16). When
purchasing optional Will-Burt power cables, these cables are supplied with the mating connector
installed. These cables can handle 20 amp maximum current.
For customer supplied lighting power cables, the customer must supply the connector. The
connector to attach to the power cable is: MIL-DTL-5015 Style, PLUG, 7 PIN, CA3106E24-10S-
F80A206. This connector will mate to the connector installed on the control box.
Plug the source power connector into the control box connector.
Table 5-4 Sample Light Circuit Current Draw Calculation
Total Watts
Voltage
Current Draw Per Side (Amps)
Example 1
500 W
12 VDC
21 Amps per side
Example 2
1500 W
120 VAC
6.25 Amps per side
Summary of Contents for Night Scan Vertical 4.3-15
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