Datasheet

7P.21.8.275.1020 7P.22.8.275.1020
• SPD Type 2 (1 varistor + 1 spark-gap)
• Combination of replaceable varistor and
encapsulated spark gap modules
• Visual and remote signalling of varistor status
• SPD Type 2 (1 varistor)
• Replaceable varistor module
• Visual and remote signalling of varistor status
SPD specification
Nominal voltage (U
N
)V AC
Maximum continous operating voltage (U
C
) V AC/DC
Nominal discharge current (8/20 µs) (I
n
)kA
Maximum discharge current (8/20 µs) (I
max
)kA
Voltage protection level at 5kA (U
P5
)kV
Voltage protection level at I
n
(U
P
)kV
Response time (t
a
)ns
Short-circuit proof at maximum overcurrent protection kA
rms
Maximum overcurrent protection - fuse rating
Replacement modules code
Other technical data
Ambient temperature range °C
Protection degree
Wire size
mm
2
AWG
Wire strip length mm
Screw torque Nm
Remote status signalling contact specification
Contact configuration
Rated current A AC/DC
Rated voltage V AC/DC
Wire size (07P.01)
mm
2
AWG
Approvals (according to type)
5
Features
SPD Type 2 Surge arrester range - single phase
systems
• Surge arrester suitable for 230V system/
applications
• Protects equipment against overvoltage caused
by lightning strikes or switching transients
• To be installed at the boundary of LPZ 1-LPZ 2
zones or higher
7P.21.8.275.1020 Varistor protection L - N
7P.22.8.275.1020 Varistor protection L - N
+ spark-gap protection N - PE
Spark-gap protection N - PE avoids earth
leakage current
• Visual indication of varistor status -
Healthy/Replace
• Remote signalling contact of varistor status
Connector (07P.01) included
• Recommended fuse rating: 125 A
• Replaceable modules
• Complies with EN 61643-11
• 35 mm rail (EN 60715) mounting
7P Series - Surge Protection Device (SPD)
L-N N-PE
230 230 —
275 / 350 275 / 350 255 / —
20 20 20
40 40 40
0.9 0.9 —
1.2 1.2 1.5
25 25 100
35 35 —
160 A gL/gG 160 A gL/gG —
7P.20.8.275.0020 7P.20.8.275.0020 7P.20.1.000.0020
–40...+80
IP20
solid cable stranded cable
1x1...1x50 1x1...1x35
1x 17...1x1 1x 17...1x2
14
4
1 CO (SPDT) 1 CO (SPDT)
0.5 - 0.1 0.5 - 0.1
250 250
solid cable stranded cable solid cable stranded cable
1.5 1.5 1.5 1.5
16 16 16 16
For outline drawing see page 13
7P.21 / 7P.22
Screw terminal
XII-2012, www.findernet.com