Devices: Type (class I)/type 1+2 (class I+II),
e.Choosing the right surge protection devices
The classification surge protection devices into
types means they can matched different require-
ments with regard location, protection level and cur-
rent-carrying capacity.
For insulation coordination, the protection level the
SPDs must less than equal the rated impulse
voltage the electrical system according IEC
60364-5-53.g. the main distributor/at the entrance
to the building
MCF100-
3+NPE+FS
Item no. Table 3.g.
Devices: Type (class II),
e.5 kV
Installation e.:
5092451
Table 3.
Devices: Type (class III),
e.5 kV
OBO SPD protection level: 1. g.:
5095253
LPZ LPZ 3
Surge protection for surge protection the terminals.3 kV
Installation e.g.g.: ÜSM-A
Required surge voltage resistance: 1.: V20
Required surge voltage resistance: 1.5 kV
OBO SPD protection level: 1. directly front the terminal
ÜSM-A
Item no.3: SPDs zone transitions
TBS
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Chapter The internal lightning protection system
.:
5096987
LPZ LPZ 2
SPD for equipotential bonding according IEC
60364 case surge voltages.3 kV
Installation e.3 below provides an
overview the zone transitions. also shows which
OBO surge protection devices can installed the
energy supply network and their respective function. the sub-distributor/storey distributor
V20
Item no.: MCF100-3+NPE+FS
Required surge voltage resistance: kV
OBO SPD protection level: 1.
Zone transition Protection device and device type Product example Product figure
LPZ LPZ
1
SPD for lightning protection equipotential bonding ac-
cording IEC 62305 for direct nearby lightning
strikes.g
