DEHN DBM 1 440 LIGHTNING CURRENT ARRESTER

Manufacturer: DEHN
Type: Lightning Current Arrester
Model: DBM1440
Part No.: 961 140
Item No.: 1065930

Nominal voltage (a.c.) (UN): 400 V
Max. continuous operating voltage (a.c.) (UC): 440 V
Lightning impulse current (10/350 µs) (Iimp): 35 kA
Specific energy (W/R): 306.25 kJ/ohms
Nominal discharge current (8/20 µs) (In): 35 kA
Voltage protection level (UP): 2.5 kV
Follow current extinguishing capability (a.c.) (Ifi): 50 kArms
Follow current limitation / Selectivity: no tripping of a 32 A gG fuse up to 50 kArms (prosp.)
Response time (tA): 100 ns
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 0.2 s): 500 A gG
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 5 s): 250 A gG
Max. backup fuse (L-L’): 125 A gG
Operating temperature range (parallel connection) (TUP): -40 °C … +80 °C
Dimensions: 150 x 36 x 66 mm