The following represents a wiring diagram of spds in a typical system. You must refer to this diagram while wiring the spd.
Practical Tips For Installing Surge Protection Devices In Low
Spd device wiring diagram. The spd performance can be. Bus connection figure 4. Box after wiring is completed using drywall anchors. Midnite solar inc. Eaton spd series surge protective device for integrated nits 6. Dimensions for 50 200ka units mounting 880 2235 terminals 874 2220 466 1184.
See figures 9 14. Select the correct wiring diagram for the spd you are install ing. With an overall length of 1m of wiring including the spd fuse connection will have a let through voltage of 1500v. Halving the length of connecting wires halves the inductance but the thickness would have to be increased tenfold to achieve the same effect. Spd connection type 1 ct1 an spd configuration based on connection type 1 ct1 is for tn c s or tn s earthing arrangements as well the tt earthing arrangement where the spd is fitted downstream of the rcd. The performance of a surge protection device spd is governed by two main factors.
Spd series type 1 and type 2 units do not require over current protection devices fuses or circuit break ers to operate correctly. Installation shown with midnite solar e combiner box. See figures 6 7 8 and 9 on page 4. Through the enclosure hole and mount the spd enclosure. Warrants to the original customer that the spd products shall be free from defects in materials and workmanship for a period of five 5. In case you are not familiar with surge protective devices operation and types you better read first the basics of surge protective devices.
You must refer to this diagram while wiring the spd. Determine the wire length required to make the spd phase connections and cut the wires to the appropriate length. Between the outside lpz0a to the inside of a building lpz1 spd. Spd wires through the enclosure hole and mount the spd enclosure. Spd can be used with any electric panel. Select the correct wiring diagram for the spd you are install ing.
Midnite solar surge protection device spd midnite solar inc. You must refer to this diagram while wiring the spd. Wiring of the installation and cause damage by considering which device to install. The designed performance of the spd and the installation practices used on site. Self inductance of wiring is proportional both to its length and to the logarithm of its thickness. Select the correct wiring diagram for the spd you are install ing.
However the installation will be better protected if both devices are installed on 2 different din rails spd underneath the protection the number of lightning strikes that the surge protection device can absorb will decrease with the value of the discharge current from 15 strikes for a current at value in to a single strike at imaxiimp. A house or building is split into lightning protection zones lpz as a potential surge passes between one zone to another this is where the appropriate spd should be fitted eg. Make sure to grommet the hole in the distribution box. Spd performance is a function of the connecting lead length. See figures 8 9 10 and 11 on page 7. Device installation manual the midnite solar surge protective device mnspd is a type 2 device designed for indoor and outdoor applications.
Gallery of Spd Device Wiring Diagram
