Datasheet

6
7P.23.8.275.1020 7P.24.8.275.1020 7P.25.8.275.1020
• SPD Type 2
(3 varistors + 1 spark-gap)
• Combination of replaceable
varistor and encapsulated
spark gap modules
• Visual and remote signalling
of varistor status
• SPD Type 2 (3 varistors)
• Replaceable varistor module,
3 pole
• Visual and remote signalling
of varistor status
• SPD Type 2 (4 varistors)
• Replaceable varistor module,
4 pole
• 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)
Features
SPD Type 2 Surge arrester range - three-phase
systems
• Surge arrester suitable for 230/400V
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.23.8.275.1020 Varistor protection L1, L2, L3
7P.24.8.275.1020 Varistor protection L1, L2, L3 - N,
+ spark-gap protection N - PE
7P.25.8.275.1020 Varistor protection L1, L2, L3 - N,
+ varistor 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 L, N-PE
230 230 — 230
275 / 350 275 /350 255 / — 275 / 350
20 20 20 20
40 40 40 40
0.9 0.9 — 0.9
1.2 1.2 1.5 1.2
25 25 100 25
35 35 — 35
160 A gL/gG 160 A gL/gG — 160 A gL/gG
7P.20.8.275.0020
7P.20.8.275.0020 7P.20.1.000.0020 7P.20.8.275.0020
–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) 1 CO (SPDT)
0.5 - 0.1 0.5 - 0.1 0.5 - 0.1
250 250 250
solid cable stranded cable solid cable stranded cable solid cable stranded cable
1.5 1.5 1.5 1.5 1.5 1.5
16 16 16 16 16 16
For outline drawing see page 13
7P.23.8 / 7P.24 / 7P.25
Screw terminal
XII-2012, www.findernet.com