Mark FBA - Electrical Connection for FBA Devices; Parallel Connection of FBA Devices; Isolator Switch Wiring

9
5 Electrical connection
Parallel connection of FBA devices
Junction box and wiring on the spot!
Note! The maximum number of fan motors on a
switching unit are indicated in the table on the next
page.
The cable dimensions are an approximation.
Isolator switch
9-wire
9-wire
9-wire
5-wire
5-wire
5-wire
Switching unit 670 - 671 Switching unit 685/52-54 E
TK=Thermocontact TK=ThermocontactFan engine 1 Fan engine 2 o. X TK=Thermocontact
TK=Thermocontact
Fan engine 1 Fan engine 2 o. X
Switching unit 685/55-58D 683/56D / 58D
7-wire
7-wire 7-wire
TK=Thermocontact TK=ThermocontactFan engine 1 Fan engine 2 o. X
∆
Engine 001 Engine 003
brown
blue
black orange
red
grey white
white
brown
orange blue black white white
TK = Thermocontact
TK =
Thermocontact
2 speeds
1 speed
Isolator switch
Isolator switch 9-pole
switching: low speed
switching: high speed
counter clock-wise
EN