User Manual – Rev AJ
California Instruments
3.15 Fuse Box Accessory
An Output Fuse Box (P/N 7003-426-1) is provi
cabinets. This fuse box prov
ded with MX systems consisting of more than 2
ides protection against excessive current circulating between
amplifiers in different chassis in case of a system malfunction.
nets are combined for each phase. The load can then be
connected to the “LOAD” side of the junction box.
Note: The Fuse box enclosure must be connected to Earth ground using the provided
Each fuse is capable of sustaining up to 125 Arms of AC current, which is the maximum
available current per MX amplifier.
Each fuse box has 9 sets of 3 fuses for phase A, phase B and phase C. Each fuse terminal is
lined up with a strain relief on each side of the box. The outputs from the MX45 cabinets connect
to the “MX 45 SOURCE” side of fuse box. The outputs of the fuse box (marked “JUNCTION
BOX” are normally routed to the 7003-416-1 Junction box (marked “MX SYSTEM OUTPUT”)
where the outputs of the various cabi
ground stud.
Figure 3-22: 7003-426-1 Output Fuse Box
Dimensions 7003-426-1:
W x L x H Chassis
12.125 “ x 16.125” x 4.125”
308 x 410 x 105 mm
Feet height:
0.875
22 mm
Strain relief hole size:
1.5” diameter
38 mm diameter
MX Series
73