Instruction Manual

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XW E-Panel installation manual

Rev: A Page 1 of 11

14000 Burn Rd

Arlington, WA 98223

USA

Ph (425)374-9060

www.midnitesolar.com

Model MNE250XW

The MidNite Solar XW E-Panel is designed for a single XW inverter installation.

Use this installation manual to aid in installation. The installation of an electrical system such as

this fall under the guidelines of the NEC in the USA. Canadian electrical codes have jurisdiction

in Canada. These instructions are not intended to be used in lieu of these local and federal codes,

but rather are used as specific to this product. You may need to consult with a professional Solar

installer or electrical inspector when in doubt on code specific questions and system installation

issues. Even though the E-Panel incorporates and simplifies numerous separate electrical circuits

into one enclosure, an inverter system such as this is still a very sophisticated and somewhat

complicated electrical system.

The XW inverter should be mounted to the wall prior to installing the E-Panel. Pay

attention to the total height of the system. Refer to the dimensioned drawing on page 2.

Installing the E-Panel to the inverter: To install the E-Panel, remove the door and deadfront.

Attach top and bottom wall mounting brackets to the E-Panel using four M6 x 10mm taptite

Summary of content (11 pages)

PAGE 1
4000 Burn Rd Arlington, WA 98223 USA Ph (425)374-9060 www.midnitesolar.com XW E-Panel installation manual Model MNE250XW The MidNite Solar XW E-Panel is designed for a single XW inverter installation. Use this installation manual to aid in installation. The installation of an electrical system such as this fall under the guidelines of the NEC in the USA. Canadian electrical codes have jurisdiction in Canada.
PAGE 2
XW E-Panel installation manual screws supplied. The top mounting bracket slides up behind the inverter to space the inverter out the proper distance from the wall. The top mounting bracket does not screw to the wall, but rather just acts as a spacer. Refer to pictures on page 2 for bracket placement. Dimensions of XW E-Panel and inverter Top left Top right Bottom left Bottom right Each mounting bracket is held on using two 6mm x 10mm thread forming screws.
PAGE 3
XW E-Panel installation manual Main component placement Rev: A Page 3 of 11
PAGE 4
XW E-Panel installation manual Installing the E-Panel to the inverter continued: Remove two 5mm #2 Philips tip screws from the bottom of the inverter that will be used to attach the E-Panel. These two screws are the only attachment to the inverter. The bottom wall mounting bracket also needs to be secured to the wall. You must also remove the battery terminal bolts prior to setting the E-Panel in place. Note: 10-32 UNF screws are interchangeable with the 5mm screws if you should misplace them.
PAGE 5
XW E-Panel installation manual Chassis ground connection to inverter E-Panel earth ground bus (AC & DC) The E-Panel comes with a 6AWG green ground wire shown above. The ground chassis lug on the bottom of the inverter is the same electrical connection as the three inside the wiring compartment of the inverter. You may use this large terminal as the one single ground connection to the inverter and then connect all other grounds to the E-Panel ground bus.
PAGE 6
XW E-Panel installation manual while the other is an 80 amp single circuit panel mount device. OutBack Power offers a two circuit 80 amp panel mount DC-GFP that also fits inside the E-Panel. The Xantrex DC-GFP’s will not fit in the E-Panel. The MidNite Solar single circuit DC-GFP’s are designed for a single PV array. Two MidNite DC-GFP’s may be used to accommodate two arrays although the dual OutBack would for dual arrays and dual controllers cost less and take up less room.
PAGE 7
XW E-Panel installation manual The DC-GFP device monitors current flowing between battery negative and earth ground and will trip when more than ½ amp is present. There should be no current flowing in this circuit under normal circumstances. In the event your DC-GFP trips, it is usually on a new installation. One of two things is happening. 1: There is an actual ground fault in the wiring, or 2: there is an excess of current flowing through the large 63 or 80 amp breaker.
PAGE 8
XW E-Panel installation manual Wires pass through a 1” conduit knockout in the side plate. Install a 1” Close nipple, three 1” locknuts and two bushings to complete the wire passage. One of the locknuts is placed between the two enclosures to act as a spacer. The picture to the right shows the MidNite Classic installed. Note the two 80 amp panel mount breakers. The E-Panel can accept up to three panel mount breakers on either side and up to seven din rail mount breakers.
PAGE 9
XW E-Panel installation manual for the generator input, utility input and AC input/output bypass switch. Most generators come with a UL489 branch circuit output breaker. All main distribution/service entrance panels such as Square D utilize UL489 branch circuit rated breakers. The AC breakers supplied in the E-Panel are supplementary protection listed to UL1077. These breakers are used as disconnects or switches, but not as branch circuit devices.
PAGE 10
XW E-Panel installation manual This is a pictorial explanation of the main AC circuits. AC input1, AC input2 and AC output. In a utility connected system, only the loads connected to the AC output Sub-panel will have power during an outage. The main service entrance loads will have no power. Lightning arrestor hook up. Note there is no arrestor on the battery bank. The Battery + lightning arrestor has marginal value since the batteries make a pretty large arrestor themselves.
PAGE 11
XW E-Panel installation manual Door label, located on the inside of the door.