6-18
[ 3 ] Arresters
An arrester suppresses surge currents induced by lightning invaded from the power supply lines.
Common use of the grounding wire that is used for electric equipment in the panel, with the arrester, is
effective in preventing electronic equipment from damage or malfunctioning caused by such surges.
Applicable arrester models are CN5132 for three-phase 200V class series, and CN5134 for
three-phase 400V class series. (The CN523 series with 20 kA of discharging capability is also
available.)
Figure 6.4 shows their external dimensions and connection examples. Refer to the catalog "Fuji Surge
Killers/Absorbers (HS165a: Japanese version only)" for details. These products are available from
Fuji Electric Technica Co., Ltd.
Available from Fuji Electric Technica Co., Ltd.
Figure 6.4 Arrester Dimensions and Connection Examples
Three-phase (240/440 VAC)
Master
*2
Plug fuse or
MCCB
(N-phase terminal is only for CN5234 and CN5234-K.)
Inverter
Motor
*1 Keep the wiring length as short as possible.
*2 The models with a built-in arrestor separator (CN5212-FK
and CN5232-FK) are not required when the short-circuit
current of the circuit is 250 VAC, 10 kA or less.
To Next Page
Loading...
