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Figure 1 - Mechanical outline drawing (inches [mm])
DC Defender
Installation Instructions
INSTALLATION NOTES
1. The DC Defender (60 Vdc Max, 15 A) is intended to be installed indoors or
outdoors, on wall or pole mount applications. The unit features mounting feet on
the sides that mount on 4” center-to-center holes with #10 sized hardware. The
mount foot also adapts to 4” diameter pole mounting kits with a 4.5” center-to-
center holes and larger hardware. Refer to figure 1 for mechanical requirements
and connector locations. The optimum ground connection on the metal enclosure
unit at the mounting flange on either side is shown in Figure 2. Use minimum 8
AWG wire for a ground reference attachment. DC input and output wires shall
be routed through the strain relief at the cable openings. Be sure to install the
cables with the unprotected cable installed into the left two terminal lugs and the
protected equipment cable in the right two terminal lugs. Positive polarity on the
pairs of terminal lugs is located on the left. The enclosure features a built in cable
retention that grips the cable with a screw down bracket. A pole mount adapter kit
(p/n 1000-1164) is available to meet installations in a wide range of pole diameters
from 2” metal fence poles to 10” diameter utility poles.
2. Mount the device as close to the equipment to be protected as possible using the
provided hardware. Mount the unit in the orientation shown, with the strain reliefs
facing the ground.
INSTALLATION INSTRUCTIONS
1. Remove the cover by removing the screws on the front of the unit.
2. Mount the unit to an outside surface using the two mounting holes shown in
Figure 1.
3. Connect the unit using 14 AWG - 10 AWG two wire conductor secured with the
terminal lugs. Torque terminal lug screws to 25 in-lbf.
4. Attach appropriate wire guage for ground wire, as short as possible (less than 3
feet), between the unit and the site grounding point using 1/4” hardware provided
in the location shown in Figure 2. Torque to 40-45 in-lbf. Refer to local codes and
equipment manufacturers’ standards before installation.
5. Replace cover and secure with the two screws removed in step 1. Torque to
40-45 in-lbf.
CABLE REQUIREMENTS
If the DC Defender is used in a Hazardous Location, the following cable requirements
must be met:
1. The cable must be 2 conductor, 14-10AWG, Outdoor Rated (-40°C to +80°C)
2. The outer diameter of the cable must be .250-.300 inches.
3. The outer jacket material must be PVC
USAGE AND MAINTENANCE
The SPD should be scheduled for periodic inspection to ensure the SPD is operational
and all wire connections are tight.
If the SPD is damaged, contact Transtector for replacement.
1200-431 Rev C
Revised: 2/19/15
5.69 144
7.17 182
5.12 130
4.00 102
4.19 106
#10 CLEARANCE
HOLE
1.65 42
Figure 2 - Ground Cable Installation
