Alpha Technologies FlexNet MPS48-12M - Technical Manual - Manual (Page 21)

21 021-514-B2-001, Rev. A
Fig. 4-3, Streetlight AC Power Tap Cable, Stripped Fig. 4-4, Streetlight AC Power Tap Cable Installed
Strip 2"
Strip 1/4"
4.0 Installation, continued
4.5.1 AC Connection with High Voltage Transformer, continued
4. Connect the red wire from the transformer
to the L1 terminal on the AC input block.
Torque to 4.5 in-lbs (.5 N m).
5. Connect the white wire from the
transformer to the L2 terminal on the AC
input block. Torque to 4.5 in-lbs (.5 N m).
6. Connect the green 3-pin connector from
the transformer to the AC input connector
on the power module.
7. Secure the new wiring with cable ties.
4.5.2 Installing the Streetlight AC Power Tap Cable
1. Remove the 1/2" EMT knockout (7/8" dia.) and the 3/4" EMT knockout (1 1/8" dia.),
located in the center bottom of the enclosure. For alternate installation, remove knockouts
from the right side, left side, or back left of the enclosure.
2. Install the provided 1/2" strain relief fi tting in the 1/2" knockout. Route the Streetlight AC
Power Tap Cable and separate #12AWG safety ground wire between the enclosure and
utility power connection. Connect the terminal end of the safety ground.
3. Remove two inches of insulation from the Streetlight AC Power Tap Cable and strip the
white and black wires 1/4". See Fig. 4-3.
4. Connect the black wire to the L1 terminal on the AC input block. See Fig. 4-4.
5. Connect the white wire to the L2/N terminal on the AC input block.
6. Using a #10 ring lug, connect a #6AWG ground wire to the #10 ground stud located on
the back wall of the enclosure (see Fig. 4-4). Torque to 36 in-lbs (4.1 N m). See Section
4.6 for recommended grounding procedure.
Do not connect AC power at this time; continue to Section 4.7.