MNPV8-MC4 User Manual

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Rev: D Page 1 of 6

MNPV2 & 4 Prewired Installation

Instructions

The Pre-wired MNPV combiner is rated for outdoor use. Designed for combining high voltage strings using

10mm x 38mm fuses up to 60 and 80 amps total. The use of touch safe din rail mount fuse holders and fuses

allow operation up to 600 Volts. The MNPV2 is rated for up to 60 amps and the MNPV4 is rated for 80 amps.

This Manual covers the following models:

Application:

• PV combiner employing Tyco or Multi-Contact MC4 bulkhead mount connectors for plug and play

installation.

Features:

• Fast, Convenient hook up with industry standard connectors

• All aluminum powder coated housing that won’t rust

• Flip up cover that can stay in the open position during installation

• PV Negative bus bar with #6 and 1/0 connections

• Chassis ground bus bar with #6 and 1/0 connections

• Standard din rail holding two or four 15 amp fuses and touch safe fuse holders

• Tin plated copper bus bar that connect PV Plus outputs

• Dead front cover snaps into place after wiring is complete for safety

• Connectors for PV in and PV out on bottom, additional knockouts on bottom and sides

• Top surface is available to bring conduit in from directly above the enclosure

• MNPV4-TYCO

• MNPV2-TYCO

• MNPV4-MC4

• MNPV2-MC4

MNPV2-MC4 Shown

MNPV4-TYCO Shown

Summary of content (6 pages)

PAGE 1
MNPV2 & 4 Prewired Installation Instructions MNPV2-MC4 Shown MNPV4-TYCO Shown The Pre-wired MNPV combiner is rated for outdoor use. Designed for combining high voltage strings using 10mm x 38mm fuses up to 60 and 80 amps total. The use of touch safe din rail mount fuse holders and fuses allow operation up to 600 Volts. The MNPV2 is rated for up to 60 amps and the MNPV4 is rated for 80 amps.
PAGE 2
Prewired MNPV2 & 4 Installation Instructions (continued) IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - These instructions contain important safety and operating instructions for the MidNite Solar Prewired MNPV solar combiner boxes. If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, please refer installation to a qualified dealer, electrician or installer.
PAGE 3
Prewired MNPV2 & 4 Installation Instructions (continued) Installation Note: The plastic dead front fits very tight. You must first remove the lid in order to remove the deadfront. To remove the deadfront: Pry off the lid as shown using something like a screwdriver as a lever. The dead front then lifts out easily. The installation of a PV combiner is fairly straight forward. Select the location to install your combiner first. Some systems have the PV modules located close to the inverters.
PAGE 4
Prewired MNPV2 & 4 Installation Instructions (continued) The diagram to the right shows typical connections for the MNPV4 combiner. The MNPV2 is the same except that it combines fewer strings. Note that items inside the dashed lines are external to the combiner. The solar panel connectors are all factory pre-wired leaving only the combined plus and minus as well as the ground connections to be completed at installation. Solar panels and wire size: The MNPV2 & 4 are rated for up to 600 VDC.
PAGE 5
Prewired MNPV2 & 4 Installation Instructions (continued) MNPV2 Factory wiring MNPV4 Factory wiring MNPV2 & MNPV4 Specifications Model Number Connectors Combines Factory supplied fuse Max VOC Max output amps Input wire range AWG Output wire range AWG Mounting angle Enclosure type MNPV2-TYCO MNPV2-MC4 MNPV4-TYCO MNPV4-MC4 Solarlok Compatible 2 Strings (2) 15A 600 60 14-6 AWG 14-1/0 AWG 90 to 14° 3R MC4 Compatible 2 Strings (2) 15A 600 60 14-6 AWG 14-1/0 AWG 90 to 14° 3R Solarlok Compatible 4 Strings
PAGE 6
Prewired MNPV2 & 4 Installation Instructions (continued) MidNite Solar surge protective devices have been designed to afford the maximum possible protection for PV combiners, string inverters and AC distribution systems. Midnite Solar Surge Protection Device. 8-009-1 Part No.