32
GB
6.2 Electrical connection
The electrical connection may only be carried
out by a qualified electrician.
DANGER!
Risk of fatal injury from electrical voltage!
Immediate risk of fatal injury if live components
are touched.
• Before commencing work, switch off the
power supply and secure it from being
switched on again.
• Never open the control module (5) and never
remove operating elements.
CAUTION!
Pulsed mains voltage can cause damage to
electronic components.
• Never operate the pump with phase angle control.
• For applications where it is not clear whether the
pump is operated with pulsed voltage, get the
control/system manufacturer to confirm that the
pump is operated with sinusoidal AC voltage.
• Switching the pump on/off via triacs/solid-state
relays must be examined on a case-by-case basis.
Preparation
• The current type and voltage must correspond to
the specifications on the rating plate (6).
• Maximum back-up fuse: 10 A, slow-blow.
• Only operate the pump with sinusoidal AC
voltage.
• Note the switching frequency:
- On/off switching operations via mains voltage
≤
100/24 h.
-
≤
20/h for a switching frequency of 1 min. betwe-
en switching on/off via mains voltage.
• The electrical connection must be made via a
fixed connecting cable equipped with a connector
device or an all-pole switch with a contact ope-
ning width of at least 3 mm (VDE 0700/Part 1).
• Use a connecting cable with sufficient outer
diameter (e.g. H05VV-F3G1.5) to protect against
leaking water and to ensure strain relief on the
threaded cable connection.
• Use a heat-resistant connecting cable where fluid
temperatures exceed 90 °C.
• Ensure that the connecting cable does not make
contact with either the pipes or the pump.
Mains cableconnection
Installing the mains connection cable (Fig. 3):
• Cable assignment:
1 yellow/green: PE (
)
2 blue: N
3 brown: L
Connect the plug to the socket (11) of the adjustment
module until it engages in position (fig.4)
Connection to an existing device
The pump can be directly connected to an existing
pump cable with a 3-pin plug (e.g. Molex) when being
replaced (Fig. 3, item a).
• Disconnect the connecting cable from the power
supply.
• Press down the locking button of the installed plug
and remove the plug from the control module.
• Observe the terminal assignment (PE, N, L).
• Connect the existing device plug to the plug con-
nection (11) of the control module.
