Lightning Protection Products

DEHNbloc Maxi DBM 1 255 L


Product No:Pro200963134432
Product Model:DEHNbloc Maxi DBM 1 255 L
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DEHNbloc Maxi DBM 1 255 L

               
DEHNbloc Maxi 1 255 (L) Dimension drawing DBM 1 255 L Basic circuit diagram DBM 1 255 L

DBM 1 255 (L): Coordinated single-pole lightning current arrester with high follow current limitation for UC = 255 V; available with operating state indicator (L

  DBM 1 255 
SPD according to EN 61643-11 Type 1  
SPD according to IEC 61643-1 Class I  
Max. continuous operating a.c. voltage     [UC] 255 V 
Lightning impulse current (10/350 µs)     [Iimp] 50 kA 
Nominal discharge current (8/20 µs)     [In] 50 kA 
Voltage protection level     [UP] ≤ 2.5 kV 
Voltage protection level - residual voltage     [UP @8/20] ≤ 2.5 kV 
Voltage protection level - sparkover voltage     [UP @1,2/50] ≤ 1 kV 
Follow current extinguishing capability a.c.     [Ifi] 50 kArms 
Follow current limitation / Selectivity no tripping of a 32 A gL/gG fuse up to 50 kArms (prosp.)  
Response time     [tA] ≤ 100 ns 
Max. backup fuse (L) up to IK = 25 kArms (ta ≤ 0.2 s) 500 A gL/gG 
Max. backup fuse (L) for IK > 50 kArms 200 A gL/gG 
Max. backup fuse (L-L) 125 A gL/gG 
Temporary overvoltage (TOV)     [UT] 335 V / 5 sec. 
Operating temperature range (parallel connection)     [TUP] -40°C...+80°C  
Operating temperature range (series connection)     [TUS] -40°C...+60°C  
Cross-sectional area (L, L, N/PEN, N/PEN)     [min.] 10 mm2 solid/flexible  
Cross-sectional area (L, N/PEN)     [max.] 50 mm2 stranded/35 mm2 flexible  
Cross-sectional area (L, N/PEN)     [max.] 35 mm2 stranded/25 mm2 flexible  
For mounting on 35 mm DIN rail acc. to EN 60715  
Enclosure material red thermoplastic, UL 94 V-0  
Degree of protection IP 20  
Dimension 2 mods., DIN 4 
PU 1 pcs. 
ordering information
Type DBM 1 255 
Part No. 900 025