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Ac power (mains) connections – Siemens DataNET Hub (DNH) User Manual

Page 35

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2000585-001

Installation

•••• 27

AC Power (Mains) Connections,

Continued

Step Action

3.

Install 15-Ampere circuit breakers, disconnect switches or
receptacles in the incoming power supply lines or two
switched receptacles near the DNH unit. This will ensure
DNH power supplies will be completely separated from
each of the power sources. Label the breakers or receptacle
boxes to make sure that the circuits are clearly identifiable.

Note: For one input power sources only a single breaker
box or switch receptacle is required.

4.

Remove wiring access plates from DNH. Punch holes as
required for either conduit or cable gland connectors for
both power and I/O lines. Install connectors and replace the
plates.

5.

Route input power, in accordance with pertinent electrical
codes and regulations, to DNH. Use entry holes provided in
step (4).

6.

Locate the AC Power Input connector. To make the AC
connections easier the Power Input Connector comes apart.
Simply loosen the two recessed captive screws, grasp the
top portion of the connector and pull it straight out from the
base connector.

Loosen the top wire retaining screws from the removed
connector. Strip the insulation ¼ -inch back from each of the
input power leads. Insert each lead in the correct location,
and tighten down the retaining screws.