3704-IG-001 Installation and User Manual
Page 11
Figure 4B
Figure 4A
Pole-Mounting Options
Whether using a CMI-supplied pole or a customer-supplied (electrically grounded per state and local codes) pole, mount the
pole directly to a ground-level flat surface which should accommodate the weight and pull force of the EVSE(s). The weight of
a single 3704 pole is 45.7 pounds, while a dual pole weighs 87.7 pounds. A concrete sidewalk is a typical mounting surface. A
one-inch conduit (to support AC wiring from the breaker panel) is typically brought up into the center bottom of the pole. If
any communication to the 3704 is serial or Ethernet (if a Payment Module is installed), an additional ¾ inch conduit needs to
be brought up into the center bottom of the pole. If a concrete base is being poured to support the 3704 EV charger, the
suggested size should be 3'x3'x4" minimum. However, whatever the mounting surface and method, it should conform to
town/state/federal building codes.
Note: It is not recommended to mount the 3704 pole directly to asphalt. If required, cut a section of the asphalt and pour a
concrete base.
In areas where frost is a concern, you can also follow these steps to mount the pole utilizing an 18" wide Sonotube, Schedule
40 conduit, four 1/2" J-bolts 12" long, rebar, ground rod and #8 bare copper wire, cast in place a mounting base, as per
dimensions shown in Figure 4B. Conduit considerations are the same as above.
NOTE: In order to remain ADA-compliant, from the user’s perspective, the center of the 3704’s Data Router MUST be no
more than 48 inches from the ground when mounted to the pole, regardless of how the pole is mounted to the
ground, or to a wall (Figure 1B).
