8
Installation BRS20/22/30/32/40/42/50/52
Release 06 03/2020
Grounding the device
The device is grounded via the separate ground screw. The grounding
screw is located on the front right side of the device for narrow casing
sizes. For the medium and wide casing sizes, the grounding screw is
located at the bottom left of the front side of the device.
See “Dimension drawings” on page 62.
Ground the device before connecting any other cables.
Disconnect the grounding only after disconnecting all other cables.
Requirements for connecting electrical wires
Before connecting the electrical wires,
always
verify that the
requirements listed are complied with.
Requirements for connecting the signal contact
Before connecting the signal contact,
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 K higher
than the maximum ambient air temperature at which the device is used.
Only use copper wire.
The following requirements apply without restrictions:
The connected voltage complies with the requirements for a safety extra-low voltage
(SELV) or ES1 as per IEC/EN 62368-1.
The connected voltage is limited by a current limitation device or a fuse.
Observe the electrical threshold values for the signal contact.
See “Technical data” on page 54.
Prerequisites:
All
of the following requirements are complied with:
Содержание HIRSCHMANN BRS20
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