Table of Contents
Advertisement
Quick Links
Arlington, WA 98223
www.midnitesolar.com
Model: MNDC125, MNDC175, MNDC250
Shown with 250 amp sized breaker
The Mini-DC was designed to take into account many different types of renewable energy
installations. These installation instructions will describe and show some of the more common
possibilities.
Features:
• Aluminum chassis. (no rust in the tropics or around salt water)
• Hinged door for easy access to electrical circuits
• Inverter breaker included (125, 175 or 250 amp)
• Din rail for DC circuits such as PV in, Chg Cntrl out, DC-GFP, DC loads, PV combiner
• Ground bus bar with 14 poles
• Six mounting spots for 500 amp, 50mV shunt
• Mounting spot for insulated bus bar (for PV negative connection point)
• Knock outs for inverter and battery cables, charge control mounting, DC & PV in & out
• 5/16" diameter stud for battery negative tie point
14000 Burn Rd
USA
Ph (425)374-9060
MNDC Instructions
MNDC closed
Rev: New Page 1 of 7
Advertisement
Table of Contents
Summary of Contents for MidNite Solar MNDC125
- Page 1 Arlington, WA 98223 Ph (425)374-9060 MNDC Instructions www.midnitesolar.com Model: MNDC125, MNDC175, MNDC250 Shown with 250 amp sized breaker MNDC closed The Mini-DC was designed to take into account many different types of renewable energy installations. These installation instructions will describe and show some of the more common possibilities.
- Page 2 MNDC Installation Instructions Dimensioned drawing showing conduit locations and sizes Top view showing three 1” knockouts. The left two knockouts fit charge controllers such as the Classic, MX60, C-40 and Tristar controllers The left side of the MNDC chassis has three 2”...
- Page 3 MNDC Installation Instructions Wiring diagram supplied on the door of MNDC Grounding There are various ground circuits that need to be considered in the renewable energy system. The MNDC chassis should be grounded to your earth ground rod through a 6AWG wire connected to the ground bus bar located in the top left section of the MNDC chassis.
- Page 4 MNDC Installation Instructions Battery Negative connection The wiring diagram shows a 500 amp shunt. This is used to measure voltage drop across the shunt to aid in calculating battery state of charge. The shunt does not ground the battery negative circuit.
- Page 5 MNDC Installation Instructions Note the 6AWG wire connected to the lower section of the inverter battery breaker. This comes from the output breaker from a charge controller. The inverter negative shunt connection has the corresponding negative circuit from the charge controller and negative from the DC-GFP.
- Page 6 MNDC Installation Instructions Remove the DC breaker cover to install din rail mount breakers. Insure the yellow tab snaps into place to secure the breakers. Strip wires 3/8” and bend at ¾” from end. This section is very tight so pay close attention to wire routing.
- Page 7 MNDC Installation Instructions MNDC fully wired Rev: New Page 7 of 7...
Need help?
Do you have a question about the MNDC125 and is the answer not in the manual?
Questions and answers