CONTREX CX-1200 - Manual (Page 11)

Page 9
WIRING
This section contains the input, output and serial communications wiring information for the CX-1200. Please
read this section prior to wiring the CX-1200 to ensure that you make the appropriate wiring decisions.
NOTE: The installation of this motor control must conform to area and local electrical codes. See The
National Electrical Code (NEC,) Article 430 published by the National Fire Protection Association,
or The Canadian Electrical Code (CEC). Use local codes as applicable
Use a minimum wire gauge of 18 AWG.
Use shielded cable to minimize equipment malfunctions from electrical noise and terminate the shields
at the receiving end only.
Keep the AC power wiring (J4) physically separated from all other wiring on the CX-1200. Failure to
do so could result in additional electrical noise and cause the CX-1200 to malfunction.
Inductive coils on relay, contactors, solenoids that are on the same AC power line or housed in the
same enclosure should be suppressed with an RC network across the coil.
A hand operated supply disconnect device must be installed in the final application. The primary
disconnect device must meet EN requirements.
Install an AC line filter or isolation transformer to reduce excessive EMI noise, such as line notches or
spikes, on the AC power line.
DANGER
H a z a r d o u s v o l t a g e s .
Can cause severe injur y, death
or damage the equipment.
The CX-1200 should only be installed by a
qualified electrician.