Model MCX-32
Model MCX-32 Instruction Manual
Rev. 2.3
Page 5 of 49
24VDC
GROUND
VAC (L1)
NEU (L2)
I
O
N
C
3
A
W
M
S
1
C
0
3
2
4
0
V
-
1
0
0
0
0
I
O
N
C
3
A
W
M
S
1
C
0
3
2
4
0
V
-
1
0
0
0
0
I
O
N
C
3
A
W
M
S
1
C
0
3
2
40
V
-
1
0
0
0
0
Figure 2
AC/DC Inputs
NOTE:
The input voltage range must be between 110-240VAC.
2.2.2
DC Power
For optional external DC power input, connect 20-30VDC to the terminals located on the back of the
enclosure, labeled “24VDC” and “DC Comm” (See Figure 2). This input can be used for primary power or
back-up power in the event of an AC power failure. The DC input voltage should be capable of delivering at
least 5 Amps of current to the load (120 Watts @ 24VDC). This voltage can come from an external 24VDC
supply or a battery back-up. If batteries are directly connected to this input, the unit has the ability to provide
the necessary battery charging voltage to the batteries. See Section 6.3.9 Power Management Screen for
setting up the charging voltage for the batteries.
NOTE:
The supply of power should be from an isolated source with over-current protection
as applicable. The input voltage range must be between 20-30VDC.
3.0
Installation (N4X Enclosure)
3.1 Mounting and Cable Installation
The Model MCX-32-N4X controller is housed in a NEMA 4X water/corrosion proof enclosure for
indoor/outdoor use. The controller includes gland plates on both the top and bottom of the enclosure. These
gland plates should be used to mount conduit hubs used for wiring the controller. The controller is configured
to incorporate conduit and conduit hubs for running cables. Securely mount the Model MCX-32-N4X per the
mounting dimensions provided in Figure 3. Keep AC power separate from DC power and signals within
conduit runs.
16"
15"
13"
14.25"
8.2"
14.25"
Ø0.315"
Figure 3
MCX-32-N4X Controller Mounting and Dimensional View
