Electrical Installation; Supply Voltage - Grundfos MAGNA3 D Instrucciones De Instalación Y Operación

Step Action
Twin-head pump.
Position the clamps
so that the gaps
point towards the
4b
arrows.
They can be in
position 3, 6, 9 or
12 o'clock.
Fit and tighten the
screw that holds
the clamp to 6 ± 0.7
ft-lbs (8 ± 1 Nm).
5 Do not retighten the
screw if
condensation is
dripping from the
clamp.
Fit the insulating
6
shells.
12
Illustration
5.0 8 Nm

4.9 Electrical installation

Carry out the electrical connection and protection according to
local regulations.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
WARNING
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off.
Lock the main disconnect switch to the Off
position.
Type and requirements as specified in national,
state, and local regulations.
WARNING
Electric shock
Death or serious personal injury
- Connect the pump to an external main
disconnect switch with a minimum contact gap of
1/8 inch (3 mm) in all poles.
- The ground terminal of the pump must be
connected to ground. Use grounding or
neutralization for protection against indirect
contact.
WARNING
Electric shock
Death or serious personal injury
- Use a suitable type of Ground Fault Circuit
Interrupter (GFCI) capable of handling ground
fault currents with a DC content (pulsating DC).
- If the pump is connected to an electrical
installation where a GFCI is used for additional
protection, this GFCI must be able to trip when
ground fault currents with DC content occur.
• If rigid conduit is to be used, the hub must be connected to the
conduit system before it is connected to the terminal box of the
pump.
• Make sure that the pump is connected to an external main
disconnect switch.
• The pump requires no external motor protection. When
switched on via the power supply, the pump starts pumping
after approximately 5 seconds.

4.9.1 Supply voltage

1 x 115-230 V ± 10 %, 60 Hz*, PE. Check that the supply voltage
and frequency correspond to the values stated on the nameplate.
The voltage tolerances are intended for mains-voltage variations.
Do not use the voltage tolerances for running pumps at other
voltages than those stated on the nameplate.
* All MAGNA3 pumps are approved to run on both 50 and 60
Hz.