Kumwell KZ01.*.ds is used in industrial installations such as transformers, the main switchboards of large industrial buildings and places with high risk of a direct lightning strike. It is also suitable for applications in unmeasured parts of electrical installation according to IEC 61643-11
This Model is equipped with red & greeen LED diodes signalizing the right DS Function as well as remote control tailure signalisation by inbuilt optoe-lectronics with open collector output.
| Multiple spark gap | |||||
| Technical Data | KZ01.I050.ds | KZ01.U0440.ds | |||
| Nominal voltage | UN | 230 V AC | 400 V AC | ||
| Max. continuous operating voltage | UC | 350 V AC | 440 V AC | ||
| Lightning impulse current (10/350µs) | Iimp | 50kA | |||
| Nominal discharge current (8/20µs) | In | 50kA | |||
| Voltage protection level at Iimp | UP | < 2 kV | < 2.5 kV | ||
| Temporary overvoltage (TOV) | UT | 440 V/5 sec | 690 V/5 sec | ||
| Response time | tA | < 100 ns | |||
| Follow current interrupting rating | Ifi | 3 kArms | |||
| Max. back-up fuse | 500 A gL/gG | ||||
| Short-circuit withstand capability | IP | 25 kAms | |||
| LPZ | 0-1 | ||||
| Protection type | IP20 | ||||
| Operating temperature range | 
|
-40°C to + 80°C | |||
| Mounting on | Din rail 35 mm |
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