User Manual – Rev AJ California Instruments
Figure 3-2: Location of AC Input Fuse Block and Chassis Ground Connection -
Front View, Access Panel Removed
Note: To comply with product safety requirements, EARTH GROUND must be
connected to the chassis of the AC power system using the ground stud located
directly below the AC input fuse block. Use a Green/Yellow ground wire.
Note: DO NOT USE THE NEUTRAL CONNECTION OF A 3 PHASE Y AC POWER
CONNECTION IN PLACE OF A TRUE EARTH GROUND CONNECTION. AC power
system neutrals cannot be used for protective earth ground.
The mains source must have a current rating equal to or greater than the input fuses and the
input wiring must be sized to satisfy the applicable electrical codes. The front cover must be re-
installed prior to use and the strain relief provisions located at the rear bottom of the unit must be
used to maintain protection against hazardous conditions.
38 MX Series
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