ECP300 EXPERT
Pag. 17
USE AND MAINTENANCE MANUAL
Rev. 01-12
ELECTRICAL WIRINGS
For the electrical wirings please refer to the wiring diagram and technical
characteristics of the panel model to be installed.
Panel power supply must be on a dedicated line, and must be placed a
device suitable for protection against indirect contacts upstream the line
(differential interruptor).
Do not fit power supply wiring and signal wiring (probes/sensors and
digital inputs) in the same raceways or ducts.
Do not use multi-polar cables in which there are wires connected to
inductive/power loads or signalling wires (e.g. probes/sensors and digital
inputs).
Minimise the length of connector wires so that wiring does not twist into a
spiral shape as this could have negative effects on the electronics.
When it is necessary to make a probe/sensor extension, the wires must
have a cross-section of at least 1 mm
2
.
All wiring must be of a cross-section suitable for relevant power levels.
Insulation degree must be compatible with the applied voltages.
Preferably use cables with insulator not propagating the flame and a low
toxic smoke emission if interested by fire.
It is obligatory to connect clamp marked with PE abbreviation to the
ground of the supply system. If necessary, please verify ground system
efficiency.
Do not connect to the PE clamp conductors different from the external
protection one.
CHAP. 3 - Installation
3.3
