Installing and connecting the display unit
3.3 Connecting the display unit
IRD400
Operating Instructions, 05/2018, A5E36790512-AC
23
Wiring the mains terminal block
The power supply terminal is contained in the accessory kit. The mains terminal is designed
for lines with a cross-section of between 0.25 mm² and 2.5 mm².
Note
Connect solid or flexible cables with a cross-section
≥
0.5 mm². Wire end ferrules are not
required.
NOTICE
Wire mains terminal outside the device
Do not tighten the screws of the main terminal block while it is inserted in the device. The
pressure of the screwdriver on the power supply terminal and the socket can damage the
device.
Only connect the cables to the mains terminal when it is not plugged in.
Connect the power supply lines to the mains terminal according to the following figure.
Take care that you connect the cables with the correct polarity. Observe the contact labeling
on the rear panel of the device.
The device is equipped with reverse polarity protection.