China Starwin Science&technology Co.Ltd
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Payment Terms: | T/T |
Place of Origin: | Shaanxi, China (Mainland) |
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KNF three / 2 in 1 monitoring special lightning protection gate
KNF/ 2in1 monitoring special lightning protection gate dedicated to monitoring system, the monitoring
system equipment (power supply, camera, PTZ) protection, widely used in the monitoring system of the
bank, residential security system, as well as schools, enterprises, road safety protection monitoring
equipment.
Working Conditions
▪ working temperature:-40℃~ +80℃
▪ relative humidity:5%~ 95%
Technical Parameter
Model | 3 in 1 | 2 in 1 | |||||||
KNF-220/D12Y2/D128NC | KNF-24/D12Y2/D128NC | KNF-220/D128NC | KNF-24/D128NC | ||||||
Video, and control protection | Video protection | ||||||||
Nominal operating voltage | UN | 12V | |||||||
Maximum continuous operating voltage | UC | 15V | |||||||
Nominal current | IN | 400mA | |||||||
Nominal discharge current (8/20μs) | In | 5KA | |||||||
Limit voltage at In | L-L | Up | ≤20V | ||||||
L-G | ≤50V | ||||||||
Transmission frequency | fG | 100MHz | |||||||
Insertion loss | Ae | ≤0.5db | |||||||
Power Protection | |||||||||
Nominal operating voltage | UN | 220V | 24V | 220V | 24V | ||||
Maximum continuous operating voltage | UC | 275V | 40V | 275V | 40V | ||||
Nominal discharge current (8/20μs) | In | 5KA | 5KA | 5KA | 5KA | ||||
Limit voltage at In | L-L | Up | ≤350V | ≤48V | ≤350V | ≤48V | |||
L-L | ≤1.0 KA | ≤50V | ≤1.0 KA | ≤50V | |||||
Operating Temperature | —40℃ ~ +80℃ | ||||||||
Protection level | IP20 | ||||||||
Note:With a special connector series in the loop,impedance connectors are 50Ω,75Ω;joint type has N,F, BNC, L16,7 / 16 and other models,determined by the user based on the device being used to protect joints. |
Installation And Maintenance
1.This product series in the protected equipment signal circuit, and close to the protected equipment.
2.The input(IN) and output(OUT) cannot be reversed; the input(IN) is the lightning intruding end, output(OUT) is connected
with the protection device.
3.For the normal work of SPD, grounding is very important, the grounding wire cross-sectional area is no less than 4m square meters,
and as short as possible.
4.Lightning protection gate without special maintenance, but its long-term energized, so need messenger to inspect regularly,
especially in the thunderstorm season, after the lightning strike, it should be inspected on time, if found that the loop signal is
abnormal, removing protection gate, loop signal will back to normal, it means Lightning protection gate has been damaged or life
has ended, replace the new lightning protection gate on time.
5.The outside length of Coaxial line more than 30m,it should be in the coaxial two ends with lightning protection gate, to ensure better
lightning protection effect.
Shippment:
We ship your order by sea or by air...
Our core principles
3S-Superiority,Speed,Service
Faster Speed & Better Tailor-made professional service
Our promise to customer:
Our products are all guaranteed,you will have no worry to use.
We will delivery the order strictly te order confirmed!