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DEHNguard ® modular with integrated Backup Fuse<br />
DEHNguard M TT 2P CI ... (FM)<br />
L<br />
N<br />
Type 2 Surge Arresters<br />
30<br />
L<br />
N<br />
12<br />
11<br />
14<br />
90<br />
45<br />
36 7<br />
(2 mods.)<br />
PE<br />
43.5<br />
66<br />
9<br />
PE<br />
15.3<br />
9<br />
11<br />
• Arrester backup fuse integrated in the<br />
protection module<br />
• Prewired complete unit consisting of a<br />
base part and plug-in protection modules<br />
• High reliability due to "Thermo Dynamic<br />
Control" SPD monitoring device<br />
Basic circuit diagram DG M TT 2P CI ... FM<br />
Dimension drawing DG M TT 2P CI ... FM<br />
Modular surge arrester with integrated backup fuses for single-phase 230 V TT and TN systems<br />
("1+1" circuits)<br />
Surge Arresters Type 2<br />
Type DG M TT 2P CI 275 DG M TT 2P CI 275 FM<br />
Part No. 952 171 952 176<br />
SPD according to EN 61643-11 Type 2 Type 2<br />
SPD according to IEC 61643-1/-11 Class II Class II<br />
Nominal a.c. voltage (U N ) 230 V 230 V<br />
Max. continuous operating a.c. voltage [L-N] (U C ) 275 V 275 V<br />
Max. continuous operating a.c. voltage [N-PE] (U C ) 255 V 255 V<br />
Nominal discharge current (8/20 μs) [L-N] (I n ) 12.5 kA 12.5 kA<br />
Nominal discharge current (8/20 μs) [N-PE] (I n ) 20 kA 20 kA<br />
Max. discharge current (8/20 μs) [L-N] (I max ) 25 kA 25 kA<br />
Max. discharge current (8/20 μs) [N-PE] (I max ) 40 kA 40 kA<br />
Lightning impulse current (10/350 μs) [N-PE] (I imp ) 12 kA 12 kA<br />
Voltage protection level [L-N] (U P ) ≤ 1.5 kV ≤ 1.5 kV<br />
Voltage protection level [L-N] at 5 kA (U P ) ≤ 1 kV ≤ 1 kV<br />
Voltage protection level [N-PE] (U P ) ≤ 1.5 kV ≤ 1.5 kV<br />
Follow current extinguishing capability [N-PE] (I fi ) 100 A rms 100 A rms<br />
Response time [L-N] (t A ) ≤ 25 ns ≤ 25 ns<br />
Response time [N-PE] (t A ) ≤ 100 ns ≤ 100 ns<br />
Max. mains-side overcurrent protection not required not required<br />
Short-circuit withstand capability 25 kA rms 25 kA rms<br />
Temporary overvoltage (TOV) [L-N] (U T ) 335 V / 5 sec. 335 V / 5 sec.<br />
Temporary overvoltage (TOV) [N-PE] (U T ) 1200 V / 200 ms 1200 V / 200 ms<br />
TOV characteristics withstand withstand<br />
Operating temperature range (T U ) -40°C...+80°C -40°C...+80°C<br />
Operating state/fault indication green / red green / red<br />
Number of ports 1 1<br />
Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible<br />
Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible<br />
For mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715<br />
Enclosure material thermoplastic, red, UL 94 V-0 thermoplastic, red, UL 94 V-0<br />
Place of installation indoor installation indoor installation<br />
Degree of protection IP 20 IP 20<br />
Capacity 2 modules, DIN 43880 2 modules, DIN 43880<br />
Approvals KEMA, VDE KEMA, VDE<br />
Type of remote signalling contact –– changeover contact<br />
a.c. switching capacity –– 250 V/0.5 A<br />
d.c. switching capacity –– 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A<br />
Cross-sectional area for remote signalling terminals –– max. 1.5 mm 2 solid/flexible<br />
952 171<br />
DG M TT 2P CI 275<br />
952 176<br />
DG M TT 2P CI 275 FM<br />
DG M TT 2P CI 275<br />
952 171<br />
Überspannungsableiter Typ 2 DEHNguard M für einphasige TT- und TN-<br />
Systeme<br />
DG M TT 2P CI 275 FM<br />
952 176<br />
Überspannungsableiter Typ 2 DEHNguard M für einphasige TT- und TN-<br />
Systeme<br />
Accessory for DEHNguard ® modular with integrated<br />
Backup Fuse<br />
Varistor-Based Protection Module for<br />
DEHNguard M CI<br />
Protection module for DEHNguard M ... CI 275 arresters<br />
comprising a varistor connected in series with the integrated<br />
backup fuse<br />
Type DG MOD CI 275<br />
Part No. 952 020<br />
Max. continuous operating a.c. voltage (U C ) 275 V<br />
Accessory for DEHNguard ® modular with integrated<br />
Backup Fuse<br />
N-PE Spark-Gap-Based Protection Module<br />
for DEHNguard M TT ...<br />
N-PE spark-gap-based protection module for two-pole<br />
and four-pole DEHNguard DG M TT ... surge arresters<br />
Type<br />
DG MOD NPE<br />
Part No. 952 050<br />
Max. continuous operating a.c. voltage (U C ) 255 V<br />
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