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MNE-240 E-PANEL INSTRUCTIONS
Figure 1, MNE-240 Series E-Panel Features
3.0 Installation
Before installing, read the entire installation section to determine how you are going to install your E-Panel.
The more thorough you plan in the beginning, the better your overall system needs will be met.
The installation begins by selecting a wall. All E-Panels are indoor rated and should not be placed outside
unless precautions are made to keep rain and moisture off of the system. The wall must have suitable
clearance to open the door with inverter attached. It must also have adequate clearance to operate the
breakers and outlets that protrude out the sides. The NEC requires 30” clear on the wall. The E-Panel may be
located anywhere within this 30 inches, however make sure you have sufficient room to the side to operate
the circuit breakers. Some E-Panel installations may have circuit breakers on both sides. The NEC also
requires 36 inches free and clear of obstructions in front of the E-Panel. The 36” clear area in front of all
electrical panels is to provide a space to fall back into in case of electrical shock. Each E-Panel with its’
inverter will weigh close to 100 pounds so make sure your wall is adequate for this load. The mounting
brackets provided will span studs on 16 inch centers. Mount the top bracket as shown at about 64-68 inches
off the floor. If stacking two systems vertically, make sure the breakers fall within the NEC guidelines for
height, (lowest and highest allowable). Number 10 screws with back up washers will suffice, but ¼” (6mm)
hardware provides for a better margin of safety.
A basic system diagram for the MNE-240 Series E-Panel is shown in Figure 2, MNE-240 Series E-Panel
System Wiring Diagram. This diagram should be reviewed to assist you in planning and designing your
installation.
Info:
Installations should be performed by qualified personnel, such as a licensed or certified
electrician. It is the installer’s responsibility to determine which safety codes apply and to ensure
that all applicable installation requirements are followed.
Info:
It is easier to install and wire any additional accessories (i.e. breakers for charge control, the
inverter, etc.) while the E-Panel is still lying horizontal on a table. Do as much as possible before
mounting the E-Panel on the wall.
3.1 Door Configuration
The standard E-Panel ships with breakers on the right side and with a left hand hinge. The door will
open to the right over the breakers. If for some reason you need the breakers on the right, but the door to
open to the left, then you can purchase the left hand door (part number MNEleftdoorSTM-240).
Info:
The circuit-breakers can be moved from the right side and reassembled on the left side of
the chassis. Even though this is possible, it is not advised. Moving the breakers is very time
consuming and the bypass switch will need to be re-positioned and rewired. It is much more
efficient to so spend the time before the installation to pre-determine and order the correct side
(left hinge or right hinge door).
3.2 Knockout Preparation
Info:
See Figure 3 for the location and dimensions for the knock-outs on the MNE-240
Series E-Panel.
Think about all the different wiring required and remove the appropriate knockouts before mounting the E-
Panel. Knockouts for breakers and outlets are best accomplished using a straight bladed screw driver and
hammer. A hacksaw blade is another way to cut them out.
Determine the knockout uses for:
• wiring from the E-Panel to an AC sub-panel
• wire runs from utility and/or a generator to the E-Panel
• battery cable wiring from the battery bank to the E-Panel
• additional wiring from any external DC source (PV, Wind or Hydro) to the E-Panel
• small signal wiring (battery sensors, battery monitoring, auto gen starting)
• attaching lightning arrestors
• charge control wiring
