Installation; Electrical Connections; Instrumental Checks To Be Carried Out By The Installer - DAB E.Box Plus Instrucciones De Instalación Y Mantenimiento

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2 INSTALLATION

Strictly respect the electric supply values indicated on the electrical data plate.
Although it has a grade of protection IP55, it is not advisable to use it in an atmosphere charged with
oxidising or corrosive gases.
The panels must be protected against the direct rays of the sun and against unfavourable weather
conditions.
Use good quality cables with a section suitable for the current required by their motors and for their
length. Pay particular attention to the power cable which must carry the current for all the pipes
connected.
The sensors must be suitable for the place in which they are positioned.
It is necessary to take suitable steps to keep the temperature inside the panel within the "limits of
environment temperature use" listed below.
High temperatures can lead to accelerated ageing of all the components, resulting in more or less
severe malfunctions.
It is also recommended that the person carrying out installation should ensure the cable clamps are
watertight.
Accurately tighten the cable clamps where the power cable enters the panel and those of any
external controls, connected by the installer, so as to ensure that the cables cannot work loose from
the clamps.

2.1 Electrical connections

Ensure that the main switch on the power distribution panel is in OFF position (0) and that no one can switch on the
power accidentally before connecting the power cables to the terminals:
Scrupulously observe all the regulations in force concerning safety and accident prevention.
Ensure that all the terminals are fully tightened, paying particular attention to the earth screw.
Connect the cables to the terminal board as indicated in the wiring diagrams.
Check that all the connecting cables are in excellent condition, with the external sheathing unbroken.
The system must be correctly and safely earthed as required by the regulations in force.
Check that the differential switch that protects the system is of the correct dimensions.

2.1.1 Instrumental checks to be carried out by the installer

Continuity of the protection leads and of the main and supplementary equipotential circuits.
Insulating resistance of the electric system between the active circuits L1-L2-L3 (short-circuited with each other)
and the equipotential protection circuit.
Testing the efficiency of the differential protection.
Testing the voltage applied between the active circuits L1-L2-L3 (short-circuited with each other) and the
equipotential protection circuit.
Testing operation.
ENGLISH
L1 - L2 - L3 -
for three-phase systems
L - N -
for single-phase systems
and to the isolating switch QS1.
69

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