Inspection and Installation
Copyright ©ITECH Electronic Co., Ltd. 26
⚫ Before connecting power cord, be sure to switch off the instrument. Verify
that there is no dangerous voltage on the connection terminals.
⚫ To avoid fire or electric shock, Make sure to use the power cord supplied by
ITECH.
⚫ Be sure to connect the power cord to the AC distribution box with protective
grounding. Do not use terminal board without protective grounding.
⚫ Do not use an extended power cord without protective grounding, otherwise
the protection function will fail.
⚫ Ensure that the power cord connection terminals are either insulated or
covered by the supplied protective cover so that no accidental contact with
lethal voltage can occur.
Safety agency requirements dictate that there must be a way to physically
disconnect the AC mains cable from the unit. A disconnect device, either a
switch or circuit breaker must be provided in the final installation. The
disconnect device must be close to the equipment, be easily accessible, and
be marked as the disconnect device for this equipment.
Connecting the power cord
The standard power cord specifications for this series of 3U instruments are
divided into the following types according to different regions:
The yellow-green wire is grounding wire, which is connected to the PE terminal
of power input on the rear panel; the others are live wires, which are
correspondingly connected to the L1, L2 and L3 terminals of power input on the
rear panel.
NOTE
IT7930-350-180 is standard equipped with two power cords.
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