Installation PC150/110V/54V
Release 01 11/2018
5
Requirements for connecting the supply voltage
Device casing
Only technicians authorized by the manufacturer are permitted to open
the casing.
Keep the cooling fins free to ensure good air circulation.
Verify that there is at least 4 in (10 cm) of space around the cooling fins
of the casing.
Do not touch the housing during operation or shortly after switching off
the device. Hot surfaces can cause injury.
Mount the device on a level surface with 4 M5 screws.
The following requirements apply without restrictions:
The electrical wires are voltage-free.
The cables used are permitted for the temperature range of the
application case.
Connect the grounding conductor to the grounding screw at the device
housing.
Exclusively switch on the device when it is installed.
Relevant for North America:
Exclusively use 60/75 °C (140/167 °F) or 75 °C (167 °F) copper (Cu)
wire.
Table 1: Requirements for connecting electrical wires
Device variant Prerequisites:
All variants All of the following requirements are complied with:
The supply voltage corresponds to the voltage specified on
the type plate of the device.
The power supply conforms to overvoltage category I or II.
The power supply has an easily accessible disconnecting
device (for example a switch or a plug). This disconnecting
device is clearly identified. So in the case of an emergency,
it is clear which disconnecting device belongs to which
power supply cable.
The wire diameter of the power supply cable is at least
0.75 mm² (North America: AWG18) on the supply voltage
input.
Use a power supply cable which is suitable for the voltage,
the current and the physical load.
The cross-section of the ground conductor is the same size
as or bigger than the cross-section of the power supply
cables.
Install an external fuse suitable for DC voltage in the supply
voltage input line of the plus terminal.
Table 2: Requirements for connecting the supply voltage