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2.9 Connection to the mains power supply
Caution:
electrical connections must be carried out by qualifi ed electrician, wearing appropriate Personal Protective Equipment. Never work on the
unit when it is powered up. Electrical connection must be carried out in compliance with the NF C 15-100 Standard. Each power supply network must
be protected by an omnipolar circuit breaker with a contact opening distance of 3mm. For a single-phase power supply, use a Type A leakage current
differential circuit breaker. For a three-phase phase power supply, use a Type B leakage current differential circuit breaker. For these two types of power
supply, we recommend a differential sensitivity of 300mA. The recommended amperage for each circuit breaker, depending on size of unit, is defi ned
in sections 2.9.3, 2.9.4 and 2.9.5. Maximum recommended ambient temperature <45°C. Do not forget to connect the Earth.
2.9.1 Main Control – Power
The unit has an electric mains power circuit and a electric battery circuit. Each circuit has its own built-in "control - switch" in a compartment located
behind the black door at the top of the unit.
Electrical connections are carried out in the terminal block located in the lower part of the front of the unit (see diagram below).
Access to controls
Switches, control PLCs
• Access points
Terminal block:
power supplies, ducts, signals etc.
unit power supply:
Single phase 230VAC to VEX520-VEX580
Three phase N+T for the others
Battery power supply:
Three phase N + T
Control
SD card access - RJ45 - RJ12 cable
Control PLC
Master
Optional
Control PLC
Extension
Control terminal access
Control
terminal
Optional
Control terminal
Extension
Contr
ol Cables: T
erminal-PLC
Power supply cables:
Switch-terminal
Junction box
Power
Switch access
Optional: Internal
battery power supply
switch (three-phase)
Optional : De-icing
battery power supply
switch (three-phase)
unit power supply switch (single
or three phase):
- Extraction fan/blower motor
-PLC
Power supply terminal access
Power-supply terminal
distribution
Transformer
