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Installation
3.3.3 Wiring for Power at the Controller
DANGER
Explosion hazard. Do not connect or disconnect electrical components or circuits
to the equipment unless power has been switched off or the area is known to be
non-hazardous.
DANGER
Do not connect AC power to a sc100 24 VDC powered model.
The sc100 can be purchased as either an 100–230 VAC powered model or a 24 VDC
powered model. Follow the appropriate wiring instructions per the purchased model.
Important Note: A protective earth (PE) ground connection is required by the sc100 for
both 100–230 VAC and 24 VDC wiring applications. Failure to connect a good PE ground
connection can result in shock hazards and poor performance due to electromagnetic
interferences. ALWAYS connect a good PE ground to the sc100 terminal.
The controller can be wired for line power by hard-wiring in conduit or wiring to a power
cord. Regardless of the wire used, the connections are made at the same terminals. A
local disconnect designed to meet local electrical code is required and must be identified
for all types of installation. See Figure 14 and Figure 15 on page 19 for suggested local
disconnect configurations.
1. Obtain appropriate fittings with NEMA 4X/IP66 environmental rating.
2. Loosen the screws using a phillips-head screwdriver and open the hinged controller
cover.
3. Remove the high-voltage barrier (see Figure 10 on page 16).
4. Insert the wires through the strain relief fitting or conduit hub located in the right-rear
access hole in the bottom of the enclosure. Tighten the strain relief if used, to secure
the cord.
5. Properly prepare each wire (Figure 12) and insert each wire into the terminal
according to Table 2 or Table 3. Tug gently after each insertion to ensure the
connection is secure.
6. Seal any unused openings in the controller box with conduit opening sealing plugs.
7. Reinstall the high-voltage barrier and latch to secure.
Figure 12 Proper Wire Preparation and Insertion
1. Strip ¼-inch of insulation. 2. Seat insulation against connector with no bare wire exposed.
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