Junction Box Accessory; Figure 3-20: 7003-416-1 Output Junction Box - California Instruments MX30-1 User Manual

User Manual – Rev AJ

3.13 Junction Box Accessory

An optional wiring junction box (P/N 7003-416-1) is available which may be used to connect the
outputs of 2 to 6 MX cabinets together. The junction box also has a protective ground
connection, which MUST be connected to a suitable protective earth ground.
Each junction box has four sets of terminals for phase A, phase B, phase C and Neutral. Each
terminal is lined up with a strain relief on each side. The outputs from the MX45 cabinets
connect to the "MX SYSTEM OUTPUT" side of these terminal blocks. The load can be
connected to the "LOAD". Note that the wiring is not supplied with the system and must be
provided by the end user. The wire gauge of the load connection must be sized to handle the
maximum current in the low voltage range of operation.
The "MX SYSTEM OUTPUT" side of the terminal block will accept up to 8 wires. If the external
sense connection is made at the junction box, one of these can be used to connect the sense
wiring.
Note: Do not swap output load wires or sense wires between phases, as damage to the system
will result.
The "LOAD" side will accept 2 wires. The wire size range shown in Figure 3-20 refers to
mechanical compatibility of terminal block only. This information does not reflect required wire
size. The wire sizes accepted by the terminal blocks of the junction box on each side are shown
in Figure 3-20.
Dimensions 7003-416-1:
W x L x H Chassis
Feet height:
Strain relief hole size:
MX Series

Figure 3-20: 7003-416-1 Output Junction Box

12.125 " x 16.125" x 4.125"
0.875
1.5" diameter
California Instruments
308 x 410 x 105 mm
22 mm
38 mm diameter
71