Fuji Electric FRENIC MEGA G2 Series - 11.5 Lightning Surge Protection Device SPD

11.5 Lightning Surge Protection Device SPD
11-13
SELECTING PERIPHERAL EQUIPMENT
Chap 11
11.5 Lightning Surge Protection Device SPD
SPDs absorb surge intrusion from wiring, and have the effect of preventing electrical and electronic device damage.
When installing an SPD, it is crucial that the devices being protected and the SPD share the same ground wire.
Fuji Electric boasts a lineup including the CN6 series, which is effective for induced lightning surge intrusion from
three-phase 200 V and 400 V power lines, and a CN7 series, which is effective for backflow lightning intrusion from
ground wires.
Fig. 11.5-1 shows the external dimensions and a connection example.
Refer to the catalog “Fuji Lightning Surge Protection Device CN6/CN7 Series (HS193)” for details.
These products are available from Fuji Electric Technica Co., Ltd.
■ Three-phase (240/440 VAC)
Fig. 11.5-1 Lightning Surge Protection Device (SPD) external dimensions and connection example
Connect the wiring to the SPD over as short a distance as possible.
Master
MCCB
Inverter
Moter
*1: CN6132/CN6132-K: G(IEC) terminal, CN6134/CN6134-K: N terminal
Release arm
(with plug removed)
Mounting
bracket
Release arm
(with plug removed)
5/L3
terminal
N or G (IEC) terminal
Alarm
display
Terminal
cover
Main
nameplate
Terminal
cover
3/L2
terminal
1/L1
terminal
Lot No.
Rail
mounting
(width: 35
mm)
Lot No.
Base
SPD plug
(for rail height of 7.5)
Grounding terminal (E)
Rail lock
Mounting bracket
insertion location
Parts available from Fuji Electric Technica Co., Ltd.