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EKU4-40 Plug-in/changeable SPD

EKU4-40 Plug-in/changeable SPD
Technical Data

Surge Protection Device

Application

The type 2 surge protective device are applicable to discharge overvoltage caused by switch-type (8/20μs wave-form) over currents. The type 2 arresters must be installed into sub-distribution boards (at condominium into distribution boards of flats) after main distribution boards containing type 1 arresters. For proper operation at least 10- 15 m cable or wire must be placed between type 1 and type 2 arresters. Otherwise a decoupling coil has to be installed between the two devices. These protectors are modular types with changeable insert; the auxiliary contact is built-in into the housing of the device.

Electrical Features

Model EKU4-20 EKU4-40 EKU4-B+C EKU4-60 EKU4-80 EKU4-100
Tpye D C B+C B B B
Rated Voltage(Un) 275V 385V 275V 385V 275V 385V 275V 385V 275V 385V 275V 385V
Maximum Continuous Operation Voltage(Uc) 275V 385V 275V 385V 275V 385V 275V 385V 275V 385V 275V 385V
Voltage Protection Level (Up) 1.2KV 1.5KV 1.3KV 1.6KV 1.5KV 2.0KV 1.4KV 2.0KV 1.6KV 2.2KV 2.0KV 2.5KV
Nominal Discharge Current In (8/20μs) 10KA 10KA 20KA 20KA 30KA 30KA 30KA 30KA 40KA 40KA 60KA 60KA
Maximum Discharge Current Imax (8/20μs) 20KA 20KA 40KA 40KA 50KA 50KA 60KA 60KA 80KA 80KA 100KA 100KA
Maximum Discharge Current Imax (10/350μs)     7KA 7KA      
Reaction Time <25ns <25ns <25ns <25ns <25ns <25ns
Test Level T2 T2 T1+T2 T2 T2 T2
Width/Pole 18mm 18mm 18mm 18mm 18mm 18mm
Color Mark            
Shell Material PBT PBT PBT PBT PBT PBT
Ambient Temperature -40℃~80℃ -40℃~80℃ -40℃~80℃ -40℃~80℃ -40℃~80℃ -40℃~80℃
Fuse or Circuit Breaker Matched 20A 25A 32A 32A 32A 40A
 
Terminal Specification
 
Line 2.5~35mm2 2.5~35mm2 2.5~35mm2 2.5~35mm2 2.5~35mm2 2.5~35mm2
PE 4.0~35mm2 4.0~35mm2 4.0~35mm2 4.0~35mm2 4.0~35mm2 4.0~35mm2
Signal 1.5mm2 1.5mm2 1.5mm2 1.5mm2 1.5mm2 1.5mm2
No.of Pole 1P, 2P, 3P, 4P, 1P+N, 2P+N, 3P+N
Protection Degree Ip20
Mounting DIN rail 35mm
Network System TN, TT, IT
Signal Terminal Available

 Overall and Installation Dimension(mm)

EKU4-40 Plug-in/changeable SPD,SPD for sale