7
DISTRIBUTED POWER SUPPLY
If the device is connected to a distributed power supply or the cable length between
the power source and the device is longer than 3 metres, then a surge protection
device must be fitted to comply with the CE EMC directive.
I/O MODULES
24V dc
POWER SUPPLY
AC
SUPPLY
SURGE
PROTECTOR
SURGE
PROTECTOR
SURGE
PROTECTOR
SURGE
PROTECTOR
Distributed power supply with surge protection
MC664 / MC464 AND IO DEVICES
24V
0V
EARTH
24V
0V
EARTH
SURGE
PROTECTOR
MC464
MC664
24V
0V
EARTH
24V
0V
EARTH
SURGE
PROTECTOR
MC403
MC405
220uf
63V
220uf
63V
Surge protection device