Belden HIRSCHMANN RSR20 Series, Руководство по установке

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Installation RSR20/RSR30
Release 06 07/2021
9

National and international safety regulations

Verify that the electrical installation meets local or nationally applicable
safety regulations.

Grounding the device
The device is grounded by the separate ground screw on the front panel.

Use a wire diameter for the ground conductor that is no smaller than
the diameter of the supply voltage connection, however of at least
0.75 mm² (AWG18).

Ground the device before connecting any other cables.

Disconnect the grounding only after disconnecting all other cables.

Shielding ground
The overall shield of a connected shielded twisted pair cable is connected
to the grounding connector on the front panel as a conductor.

Beware of possible short circuits when connecting a cable section with
conductive shielding braiding.

Supply voltage
The supply voltage is electrically isolated from the housing.

The devices are designed for operation with safety extra-low voltage.
Connect only safety extra-low voltage circuits with voltage restrictions
in line with IEC/EN 60950-1 to the supply voltage connections and
signal contacts.

Exclusively connect a supply voltage that corresponds to the type
plate of your device.

Ground the device before connecting any other cables.

Exclusively for device variants featuring supply voltage with
characteristic value C:
 The power supply is Class 2 compliant.
 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 electrical wires are voltage-free.
 A fuse suitable for DC voltage is located in the plus conductor of the
power supply.
The minus conductor is on ground potential. Otherwise, a fuse is
also located in the minus conductor.
Regarding the properties of this fuse:
See “General technical data” on page 53.

The wire diameter of the power supply cable is at least 0.75 mm²
(North America: AWG18) on the supply voltage input.