Telewizja dozorowa. Kontrola dostępu. Systemy alarmowe. Systemy sygnalizacji pożaru. Wideodomofony domofony i interkomy. Falowniki. Panele słoneczne. kontrolery słoneczne. Baterie. Ochronniki przeciwprzepięciowe. Awaryjne źródła zasilania. Urządzenie ładujące.

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Cena	15.01 EUR
kod	71943-8X6Y2

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The LZ-8/POL is a simple passive power supply distributor that provides power from one higher power unit to several devices. The distributor splits the input into 8 outputs; each of them is protected by polymer fuse and has indication of output voltage (the corresponding LED glows when the voltage is present at the output). If one of the outputs is overloaded, the resistance and the temperature of the polymer fuse will increase (>100°C), and the corresponding LED indicator will not glow. Through the heat fuse flows very small current. After the end of overloading an output, the fuse itself returns to the previous state.
The device has jumpers, which allow to easy turn off a corresponding output. The LZ-8/POL has been equipped with two inputs for connecting the main power supplier. The inputs work in parallel, so there is no difference which of them is used, the DC 5.5/2.1 socket, or connecting block. This solution allows for linking the LZ-8/POL distributors in series - e.g. the main supplying to DC IN socket of the first item, and its input connecting block - via a two-core cable, e.g. WT-2.1 - to corresponding input of the second LZ-8/POL device. Depending on current consumption there is a voltage drop on polymer fuses: 160mV dla I=0,5A; 300mV dla I=0,7A. During overloding the polymer fuse is heating up to the temperature >100°C, so the device shouldn't be used at temperature conditions over 40°C.

It is ideal for connection with 5.5/2.1mm plugs and YAP75 cables, which are used in installations of cameras. A standard CCTV YAP75-0.59/3.7+2x0.5 cable has two wires 0.5mm2 each. Theoretical resistance is 3.4Ω/100m. Manufacturer data is 5.5Ω/100m. In powering cameras with 12V DC over CCTV YAP75 cable and on the assumption that the voltage will fall to 11V, the power may be delivered over the distances showed in the table. These are the max. distances over which powering of 12V cameras over YAP-75-0,59/3,7+2x0,5 cable is possible.

An unquestionable advantage of employing the LZ-8/POL in monitoring systems powered from a central point is additional protection against intentional attempts to break down the system. Without such individual protection of every power line, the intruder could stop powering of the whole system just by short circuiting the supplying of a single camera.

SPECIFICATIONS