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3.9. Electrical installation and electrical connection
3.9.1. General Information - Safety
- The relevant electrical installation and electrical assembly of the units may only be performed by persons
qualified for this activity with valid authorization and knowledge of the applicable standards and
directives. Before starting any assembly works, it is necessary to switch off the power supply to the
prepared electrical installation for subsequent activation of the unit. During installation, the switch must
be secured against being switched on again by an unauthorized person.
- The curtain shall be connected to the main power supply by the TN-S system (neutral wire connected)
using an insulated cable in accordance with the diameter and corresponding regulations.
- The electrical installation and connection must be carried out on the basis of the electrical project
proposed by a professional designer.
- Electrical diagrams on the product have higher priority than the diagrams in this manual!
- The supply voltage of the curtain shall be connected in such a way that all poles of the network are
disconnected from the power supply by one element (e.g. main switch). The unit inlet phase must be
connected via a protective power circuit breaker (protective switch) according to the corresponding
current. The minimum distance between the disconnected contacts must be greater than 3mm.
- Before installation, check that the cable marking corresponds to the electrical diagram. If you have any
doubts, please contact your supplier.
3.9.2. Connection of power supply and curtain control
- The curtain is equipped with a wiring box containing spring terminals of the push-in type for connecting the
curtain power supply and control, membrane bushings for pulling the control cable through and a threaded
bushing for connecting the curtain power supply (this bushing is intended only for the power supply cable).
- For correct installation of the curtain power cable, choose a free opening in the electrical installation box,
into which screw the M20x1.5 threaded plastic bushing (part of the delivery).
o First, screw in the bushing slightly with your hand
o After the resistance of bushing against turning has increased, use a flat wrench size 24
o The bushing itself cuts through the opening in the wiring box, pushing out the cut-out section of the
box (a wheel)
- The bushing can accommodate cables with diameters 6 to 13 mm.
- Pull the supply cable through the installed bushing and tighten it with a flat wrench size 24.
- The correct installation of the bushing and its correct tightening also serve as a protection against pulling
and tearing of the power cable
- Use the remaining membrane bushings at your discretion to install the control cable correctly.
o Pierce the bushing membrane with a screwdriver
o Pull through the control cable
- Strip the cable insulation to a minimum length of 90 mm
- Strip the individual wires in the length of 10 mm. In the case of strand-type conductors, an insulated end
piece must be pressed on (tube)
- Spring terminals are equipped with manual locking of wires. Strand-type conductors provided with pressed
end (tube) may be installed in the terminals as well as solid conductors (wire) with cross section range from
0.2 to 1.5 mm². To connect the wire to the terminals, press the wire with a reasonable force and then slightly
pull back to ensure that the wire is properly secured.
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General