KNF 2 in1 High-definition Digital Camera Special
Lightning Protection Gate
KNF 2in1 high-definition digital camera special lightning protection gate is specially used for two kinds of
line surge protection of power monitoring system, RJ45 network line with network function, according to
the IP function with monitoring equipment (equipment, IP camera) protection: such as high-speed ball
machine, constant speed ball machine, constant speed monitoring cameras and other equipment. Widely
used in the monitoring system of the bank, residential security system, school, enterprise, road safety
protection monitoring equipment.
Working Conditions
▪ working temperature:-40℃~ +80℃
▪ relative humidity: 5％~ 95％
Technical Parameter
Model | KNF-220V/COM | KNF-24V/COM | ||
Network Protection | ||||
Nominal voltage | UN | 48V | ||
Nominal discharge current (8/20μs) | In | 2.5kA(L/S) 5kA(S/PG) | ||
Limit voltage at In | L-L | Up | ≤130V | |
L-G | ≤145V | |||
Transmission frequency | fG | 165MHz | ||
Insertion loss | Ae | ≤0.4db | ||
Connectors form | RJ45 | |||
Operating Temperature | —40℃ ~ +80℃ | |||
Protection level | IP20 | |||
Power Protection | ||||
Nominal voltage | UN | 220V | 24V | |
Maximum continuous operating voltage | UC | 275V | 40V | |
Nominal discharge current (8/20μs) | In | 5KA | 5KA | |
Limit voltage at In | L-L | Up | ≤20V | ≤20V |
L-G | ≤950V | ≤145V | ||
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 the better lightning protection effect.
Shippment:
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Our promise to customer:
Our products are all guaranteed,you will have no worry to use.
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