Connecting Ac Power - Siemens RUGGEDCOM RS400 Installation Manual

RUGGEDCOM RS400
Installation Guide
• Use only #16 gage copper wiring when connecting terminal blocks.
• A circuit breaker is not required for 12, 24 or 48 VDC rated equipment.
• Power input terminals have reverse polarity protection for 12, 24 and 48 VDC rated equipment.
• Equipment must be installed according to applicable local wiring codes and standards.
CONTENTS
• Section 2.6.1, "Connecting AC Power"
• Section 2.6.2, "Connecting DC Power"
Section 2.6.1

Connecting AC Power

To connect a high AC power supply to the device, do the following:
CAUTION!
Electrical hazard – risk of damage to equipment. Before testing the dielectric strength (HIPOT) in the
field, remove the braided ground cable connected to the surge ground terminal and chassis ground.
This cable connects transient suppression circuitry to chassis ground and must be removed in order to
avoid damage to transient suppression circuitry during testing.
1. Connect the positive wire from the power source to the positive/hot (+/H) terminal on the terminal block.
Figure 7: Terminal Block Wiring
1. Positive/Hot (+/H) Terminal 2. Negative/Neutral (-/N) Terminal 3. Surge Ground Terminal 4. Braided Ground Cable
2. Connect the negative wire from the power source to the negative/neutral (-/N) terminal on the terminal block.
3. Using a braided wire or other appropriate grounding wire, connect the surge ground terminal to the chassis
ground connection. The surge ground terminal is used as the ground conductor for all surge and transient
suppression circuitry internal to the unit.
Connecting AC Power
1 2 3
Installing the Device
4
Chapter 2
13