10
Installation OCTOPUS OS3
Release 03 08/2020
Requirements for connecting the supply voltage
The following requirements apply without restrictions:
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 1 mm² (North America: AWG16) on
the supply voltage input.
Exclusively applies to device variants featuring supply voltage with characteristic value PP:
The supply voltage inputs are designed for operation with safety extra-low voltage. Connect
only SELV circuits with voltage restrictions in line with IEC/EN 60950-1 to the supply voltage
connections.
Make sure that the connected supply voltage complies the requirements of IEEE 802.3af or
IEEE 802.3at:
For the use of type-1-powered devices (PoE):
Rated voltage: 48 V DC
Max. voltage range: 45 V DC ... 57 V DC
For the use of Type 2 Powered Devices (PoE+):
Rated voltage: 54 V DC
Max. voltage range: 51 V DC ... 57 V DC
The power supply is potential-free. For power supply modules capable of PoE,
exclusively use a potential-free SELV power supply.
The following requirements apply alternatively:
Relevant when the
device is supplied via 1
voltage input:
Relevant for North America:
The power supply complies with the requirements according to
NEC Class 2.
Relevant when the
device is supplied via 2
voltage inputs:
Relevant for North America:
The
total
voltage supply complies with the requirements as per
NEC Class 2.
Exclusively for device variants featuring supply voltage with characteristic value BB, FF,
HH, QQ:
The power supply cable is suitable for the voltage, the current and the physical load.
Hirschmann recommends a wire diameter of 0.5 mm² to 0.75 mm² (AWG20 up to AWG18).
The following requirements are
alternatively
complied with:
Alternative 1 The power supply complies with the requirements for a limited power source
(LPS) as per IEC/EN 60950-1 or IEC/EN 62368-1.
Alternative 2 Relevant for North America:
The power supply complies with the requirements according to NEC Class 2.
Alternative 3
All
of the following requirements are complied with:
The power supply complies with the requirements for a safety extra-low
voltage (SELV) or ES1 as per IEC/EN 62368-1.
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:
Содержание HIRSCHMANN OCTOPUS OS3
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