Connecting High Ac/Dc Power - Siemens SIMATIC NET RUGGEDCOM RST2228P Installation Manual

Installing the Device
2.5.1 Connecting High AC/DC Power
Do not disconnect protective Earth connections while the device is energized.
Before connecting power
•
•
•
•
•
•
2.5.1

Connecting High AC/DC Power

To connect a high AC/DC power supply to the device, do the following:
Electrocution hazard – risk of death, serious personal injury and/or damage to
the device.
Make sure the supplied cover is always installed over high voltage screw-type
terminal blocks.
Electrical hazard – risk of damage to equipment.
Do not connect high voltage (>72 V) AC/DC power cables to low voltage (12/24/48
V) power supply terminals. Damage to the low voltage power supply will occur.
Note
The screw-type terminal block is installed using Phillips screws and compression
plates, allowing either bare wire connections or crimped terminal lugs.
Use M3.5 ring lugs that have short insulated ring terminals with a maximum distance
of 5 mm (0.2 in) from the ring center to the insulation.
16
NOTICE
NOTICE
A minimum wire gage is required for each power supply type. For more
information, refer to
A circuit breaker rated no higher than 20 A must be installed between the device
and the supply mains.
Whenever possible, use a separate circuit breaker for each power supply.
For maximum redundancy in a dual power supply configuration, use two
independent power sources.
A socket outlet/disconnect device must be installed near the device and be easily
accessible.
Equipment must be installed according to applicable local wiring codes and
standards.
DANGER
NOTICE
"Power Supply Specifications (Page 37)".
RUGGEDCOM RST2228P
Installation Manual, 07/2021, C79000-G8976-1403-13