Connection To Mains Power - Espa CKE Manual De Instrucciones

For negative suction installations, the pipes must be fully primed.
Discharge:
Make sure the diameter of the discharge pipe is equal to or larger than that of the set's discharge manifold.
Neither the suction pipes nor the discharge pipes should be resting on the pumps.
When a greater diameter is used in the piping these shall be structured with the related eccentric cones for
suction and concentric cones for discharge.
The position of the flanges must be totally parallel to effect of minimizing the efforts in the necks of the collectors
of the group
3.3) Electrical power connection
The electrical connections must be made by authorised personnel, in accordance with local installation
regulations.
DANGER: Before doing any electrical work, disconnect the mains power supply.
This manual's electrical diagram and the panel labels, contain the required information for proper connection
set-up.
DANGER. Electrocution risk:
Connection and grounding are mandatory.
Perform all electrical connections in accordance with Standard IEC-60364 (Electrical Installations
for Buildings) or the regulations in force in the destination country and the local regulations.
The equipments' power supply line must be properly protected. This protection is aimed at
preventing personal injury in the event of electric leakage. It is advisable to use an exclusive power
supply line.
The electrical installation will be based on a multiple system separator with 3mm distance between contacts.
System protection will be based on a differential circuit breaker switch (I n = 30 mA).
The recommended differential switch is "class A" for pulsating and continuous currents, marked with the
symbols:
The leakage to ground value depends on the number of equipment units connected to the line and their power
rating.
The electrical installation should have a multiple separation system with contact gaps > =3 mm.
The set is fitted with one magneto-thermal switch per pump on the connections panel.
Motor power Leakage current
0.75 to 3 kW < 3.5 mA
4 to 5.5 kW
-16-
< 5 mA