Kikusui KHA3000, Operation Manual, Page: 67 / 392

3
KHA3000
67
W
iring M
easurem
ent Circuits
Measurement Circuit Using Commercial
Power Supply
p. 262
Connect this product to the commercial power supply directly. In directly connecting the
SOURCE terminal to the commercial power supply (AC line) without an AC power supply,
such as when measuring in-rush current, use a circuit breaker that can disconnect this
product from the commercial power supply (AC line) for safety (diagram shown below).
Parts to be prepared by the customer
• Circuit breaker
• Connection cable with commercial power supply
See
WARNING
• You may receive an electric shock. To install a circuit breaker between the SOURCE
terminal and commercial power supply (AC line), be sure to shut off the power
supply from the switchboard by turning off the switches on the switchboard.
• Use the circuit breaker with the rated current set to 40 Arms (maximum input current
of this product) or less.
• Use a circuit integrating three circuit breaker poles so that the U, V and W poles can
be shut down simultaneously.
A
V
A
V
A
V
Commercial power supply
N
G
U
V
W
N
G
U
V
W
N
G
L1
L2
L3
SOURCE LOAD
Circuit breaker
KHA3000
EUT
CAUTION
Terminal G of this product is not a protective conductor terminal. It is not grounded even if
the wire is connected to terminal G. For terminals G and N, the respective SOURCE and
LOAD terminals are short-circuited internally.