Connecting Power - Siemens RUGGEDCOM RX1500 Installation Manual

Chapter 2
Installing the Device
Figure 5: Failsafe Alarm Relay Wiring
1. Normally Open 2. Common 3. Normally Closed
Section 2.6

Connecting Power

The RUGGEDCOM RX1500 supports dual redundant high AC, high DC and/or low DC power modules that can be
installed in any combination. The use of two power modules is recommended to provide redundancy and load
balancing.
Power modules can be equipped with either a screw-type or pluggable terminal block. The screw-type terminal
block is installed using Phillips screws and compression plates, allowing either bare wire connections or crimped
terminal lugs. Use #6 size ring lugs for secure, reliable connections under severe shock or vibration.
For information about installing or removing a power module, refer to
Modules" .
DANGER!
Electrocution hazard – risk of serious personal injury or death. The device may have two power
modules equipped, which may be connected to separate power sources. Make sure all power sources
are off before servicing the power supply terminals.
IMPORTANT!
• In a high AC/DC and low DC (24/48 V) power supply arrangement, the placement of the AC and DC
power supplies is not slot-dependent. Either power module slot can be used for AC or DC power.
• For maximum redundancy in a dual power supply configuration, use two independent power
sources.
• Use only #16 gage copper wiring when connecting terminal blocks.
• The maximum wire length between the terminal block and power source must not exceed 6 m (20 ft)
for 24 V power supplies or 18 m (60 ft) for 48 V power supplies.
• For 125/230 VAC rated equipment, an appropriately rated AC circuit breaker must be installed.
• For 125/250 VDC rated equipment, an appropriately rated DC circuit breaker must be installed.
• It is recommended to provide a separate 20 A circuit breaker for each power supply module.
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Section 3.3, "Installing/Removing Power
RUGGEDCOM RX1500
Installation Guide
Connecting Power