FOR
PVI
3800-7600TL
10
Rapid Shutdown Combiner Installation and Operation Guide (Rev B)
DOCR-070566-B
5.4
Conduit installation and wiring
Two conduit plugs are provided for ¾ inch conduit fittings.
Remove the conduit plug(s) by placing a flathead screw driver in the slot on the
conduit plug face and turning counter-clockwise while gripping the nut on the
inside of the enclosure to ensure it does not slip. Unscrew the nut from the
conduit plug and slip the conduit plug out of the conduit opening.
CAUTION
- Do not enlarge the conduit openings as the enclosure will be damaged
and will violate the terms of the RSD Combiner warranty.
NOTICE
- Conduit fittings must be water tight, listed with a Type 4X rating.
Once conduit and fittings are installed, route wiring thru conduit and fitting and
allowing a 6 inch stain relief/service loop within the RSD Combiner.
5.5
RSD Combiner DC output connections
NOTICE
- All screw terminals of the DC outputs accept solid or stranded 12-6 AWG
copper wire only. Stranded wire is recommended. A 1/8” (3.5 mm) flat head bit is
recommended for tightening screw terminals to a torque of 10.5 in-lbs. (1.2 Nm).
CAUTION
- The rapid shutdown signal wire may be routed together with the DC
output cables in the same conduit, but all the cables shall be listed and rated 600
V and use Class 1 wiring methods. Always check with the local AHJ.
Although two conductors are enough for the 5V signal wire, AWG 24 4C cable is
recommended for the 5V signal wire. The signal wire can be wired with either
polarity. Suggested 5V signal wire is unshielded multi conductor type cable PVC
insulation with PVC jacket or equivalent. Wire sizes 14-24 AWG acceptable,
current draw is 5mA, so there is no concern about voltage drop.
14 AWG stranded THWN-2 wire may be used but smaller jacketed 4-conductor
600V rated and listed wire of 22-24AWG recommended for ease of installation.
It is recommended to run redundant signal wires wire (4C conductor)
Check with your AHJ on wire choice.
