Kumwell KZ01. * is used in industrial installations such as transformers, the main switchboards of large industrial buildings anh 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
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Multiple spark gap |
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Technical Data |
KZ01.I050 |
KZ01.U0440 |
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Nominal voltage |
UN |
230 V AC |
400 V AC |
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Max. continuous operating voltage |
UC |
350 V AC |
440 V AC |
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Lightning impulse current (10/350µs) |
Iimp |
50kA |
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Nominal discharge current (8/20µs) |
In |
50kA |
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Voltage protection level at Iimp |
UP |
< 2 kV |
< 2.5 kV |
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Temporary overvoltage (TOV) |
UT |
440 V/5 sec |
690 V/5 sec |
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Response time |
tA |
< 100 ns |
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Follow current interrupting rating |
Ifi |
3 kArms |
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Max. back-up fuse |
500 A gL/gG |
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Short-circuit withstand capability |
IP |
25 kAms |
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LPZ |
0-1 |
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Protection type |
IP20 |
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Operating temperature range |
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-40°C to + 80°C |
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Mounting on |
Din rail 35 mm |
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