Lightning Protection Products

DEHNguard M TT 2P (FM)


Product No：Pro200964104133
Product Model：DEHNguard M TT 2P (FM)
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DEHNguard M TT 2P (FM)

                                  
DEHNguard M TT 2P ... (FM)     Dimension drawing DG M TT 2P ... FM    Basic circuit diagram DG M TT 2P ... FM

DG M TT 2P ... (FM): Modular surge arrester for use in single-phase 230 V TT and TN systems (1+1 circuit)

  DG M TT 2P 275  DG M TT 2P 275 FM 
Type of SPD according to EN 61643-11 Type 2   Type 2  
SPD according to IEC 61643-1 Class II   Class II  
Nominal a.c. voltage     [UN] 230 V  230 V 
Max. continuous operating a.c. voltage [L-N]     [UC] 275 V  275 V 
Max. continuous operating a.c. voltage [N-PE]     [UC] 255 V  255 V 
Nominal discharge current (8/20 µs)     [In] 20 kA  20 kA 
Max. discharge current (8/20 µs)     [Imax] 40 kA  40 kA 
Lightning impulse current (10/350 µs) [N-PE]     [Iimp] 12 kA  12 kA 
Voltage protection level [L-N]     [UP] ≤ 1.25 kV  ≤ 1.25 kV 
Voltage protection level [L-N] for 5 kA     [UP] ≤ 1 kV  ≤ 1 kV 
Voltage protection level [N-PE]     [UP] ≤ 1.5 kV  ≤ 1.5 kV 
Follow current extinguishing capability [N-PE]     [Ifi] 100 Arms  100 Arms 
Response time [L-N]     [tA] ≤ 25 ns  ≤ 25 ns 
Response time [N-PE]     [tA] ≤ 100 ns  ≤ 100 ns 
Max. mains-side overcurrent protection 125 A gL/gG  125 A gL/gG 
Short circuit withstand capability for max. mains-side overcurrent protection 50 kArms  50 kArms 
Temporary overvoltage (TOV) [L-N]     [UT] 335 V / 5 sec.  335 V / 5 sec. 
Temporary overvoltage (TOV) [N-PE]     [UT] 1200 V / 200 ms  1200 V / 200 ms 
Operating temperature range     [TU] -40°C...+80°C   -40°C...+80°C  
Operating state/fault indication green / red   green / red  
Cross-sectional area (min.) 1.5 mm2 solid/flexible   1.5 mm2 solid/flexible  
Cross-sectional area (max.) 35 mm2 stranded/25 mm2 flexible   35 mm2 stranded/25 mm2 flexible  
For mounting on 35 mm DIN rail acc. to EN 60715   35 mm DIN rail acc. to EN 60715  
Enclosure material red thermoplastic, UL 94 V-0   red thermoplastic, UL 94 V-0  
Degree of protection IP 20   IP 20  
Dimension 2 mods., DIN 4  2 mods., DIN 4 
Approvals, Certifications KEMA, VDE, UL, VdS   KEMA, VDE, UL, VdS  
Type of remote signalling contact --   changeover contact  
Switching capacity a.c. --   250 V/0.5 A  
Switching capacity d.c. --   250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A  
Cross-sectional area for remote signalling terminals --   max. 1.5 mm2 solid/flexible  
1 pcs.  1 pcs. 
ordering information
Type DG M TT 2P 275  DG M TT 2P 275 FM 
Part No. 952 110 952 115
Packing unit 1 pc(s)