Installation BXS
Release 01 04/2022
9
Requirements for connecting electrical wires
Before connecting the electrical wires,
always
verify that the
requirements listed are complied with.
Requirements for connecting the supply voltage
Before connecting the supply voltage,
always
verify that the requirements
listed are complied with.
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.
Only use power supply cables that are suitable for a temperature 20 °C (36 °F)
higher than the maximum ambient air temperature at which the device is used.
Only use copper wire.
Prerequisites:
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 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.
Depending on the supply voltage used, the following additional requirements apply:
Device variants
featuring supply
voltage with
characteristic
value BB
All
of the following requirements are complied with:
The power supply complies with the requirements for a safety extra-
low voltage (SELV) according to IEC 60950-1 or ES1 according to
IEC/EN 62368-1.
The wire diameter of the power supply cable is at least 0.5 mm²
(North America: AWG20) on the supply voltage input.
Supply with DC voltage:
There are fuses suitable for DC voltage in the positive conductors of
the supply lines, or the voltage sources are appropriately current-
limited. Regarding the properties of this fuse:
See “Technical data”
The negative conductors of the voltage inputs are on ground
potential.
Device variants
featuring supply
voltage with
characteristic
value QQ
All
of the following requirements are complied with:
The power supply complies with the requirements for a safety extra-
low voltage (SELV) according to IEC 60950-1 or ES1 according to
IEC/EN 62368-1.
The wire diameter of the power supply cable is at least 0.75 mm²
(North America: AWG18) on the supply voltage input.
Supply with DC voltage:
There are fuses suitable for DC voltage in the positive conductors of
the supply lines, or the voltage sources are appropriately current-
limited. Regarding the properties of this fuse:
See “Technical data”
The negative conductors of the voltage inputs are on ground
potential.
Summary of Contents for BXS
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