Lightning Protection Products

DEHNrail M 4P (FM)


Product No：Pro200964134829
Product Model：DEHNrail M 4P (FM)
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DEHNrail M 4P (FM)

             
DEHNrail M 4P ... (FM)     Dimension drawing DR M 4P ... FM    Basic circuit diagram DR M 4P ... FM 

DR M 4P ... (FM): Four-pole surge arrester consisting of a base element and plug-in protection module; also available with floating remote signalling contact

  DR M 4P 255 FM  DR M 4P 255 
SPD according to EN 61643-11 Type 3   Type 3  
SPD according to IEC 61643-1 Class III   Class III  
Nominal a.c. voltage     [UN] 230/400 V  230/400 V 
Max. continuous operating a.c. voltage     [UC] 255/440 V  255/440 V 
Nominal load current a.c.     [IL] 25 A  25 A 
Nominal discharge current (8/20 µs)     [In] 3 kA  3 kA 
Total discharge current (8/20 µs) [L+N-PE]     [Itotal] 8 kA  8 kA 
Combined impulse     [UOC] 6 kV  6 kV 
Combined impulse [L+N-PE]     [UOC total] 16 kV  16 kV 
Voltage protection level [L-N]     [UP] ≤ 1000 V  ≤ 1000 V 
Voltage protection level [L/N-PE]     [UP] ≤ 1500 V  ≤ 1500 V 
Response time [L-N]     [tA] ≤ 25 ns  ≤ 25 ns 
Response time [L/N-PE]     [tA] ≤ 100 ns  ≤ 100 ns 
Max. mains-side overcurrent protection 25 A gL/gG or B 25 A   25 A gL/gG or B 25 A  
Short circuit withstand capability for mains-side overcurrent protection with 25 A gL/gG 6 kArms   6 kArms  
Temporary overvoltage (TOV) [L-N]     [UT] 335 V / 5 sec.  335 V / 5 sec. 
Temporary overvoltage (TOV) [L/N-PE] (I)     [UT] 400 V / 5 sec.  400 V / 5 sec. 
Temporary overvoltage (TOV) [L+N-PE] (II)     [UT] 1200 V + U0 / 20  1200 V + U0 / 20 
Operating temperature range     [TU] -40°C...+80°C   -40°C...+80°C  
Operating state/fault indication green / red   green / red  
Cross-sectional area (min.) 0.5 mm2 solid/flexible   0.5 mm2 solid/flexible  
Cross-sectional area (max.) 4 mm2 solid/2.5 mm2 flexible   4 mm2 stranded/2.5 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 43880   2 mods., DIN 43880  
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 DR M 4P 255 FM  DR M 4P 255 
Part No. 953 405 new! 953 400 new!
Packing unit 1 pc(s)