GB
3.5
Electrical connection
3.5.1
Electrical circuit diagram
DANGER
Danger of fatal injury due to electric shock
Voltage-carrying units and exposed connection cables may cause electric shocks and serious accidents.
Only trained electricians may work on electrical connections.
Make sure that there is no voltage on the unit before laying the electrical connections.
Alarm
Item
Designation
B1
Thermostat
SK
Fault signal contact
X90-
Connecting clamp
X97
Only units with a rated operating voltage of 400V / 460V can be optionally connected to another mains voltage.
Reconnection is made via the supply line on the primary side of the transformer.
Operating Manual PWT 6402 230V / 400V 086100107 © Pfannenberg GmbH
230V
Alarm
400V
Item
Designation
M1
Fan
X40
Ground terminal contact
Y1
Solenoid valve
Item
Designation
S1
Float switch
X50
Plug contact
T1
Transformer
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