MNPSB Instructions

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MNPSB Installation Instructions

MidNite Solar Bird Nest Power Supply.

Accessory for use with most MidNite Disconnecting combiners as part of a Rapid System Shutdown.

The Midnite Solar BirdNest Power supply circuit board can be installed in most MidNite Solar Disconnecting

Combiners. It is used in conjunction with one or more MNBH Disconnect switches and MidNite Solar

disconnecting combiners to remotely shutdown the system in emergencies. The MNBN provides the power to

trip the remote trip breaker from power stored in its cappacitors from either the PV or external DC in inputs.

The trip signal for the MNBNs is generated by the MNBH Disconnect Panel. Control signals are provided to the

target devices via a ruggedized 600V CAT-5 cable, which connects all components in the system.

Summary of content (7 pages)

PAGE 1
MNPSB Installation Instructions MidNite Solar Bird Nest Power Supply. Accessory for use with most MidNite Disconnecting combiners as part of a Rapid System Shutdown. The Midnite Solar BirdNest Power supply circuit board can be installed in most MidNite Solar Disconnecting Combiners. It is used in conjunction with one or more MNBH Disconnect switches and MidNite Solar disconnecting combiners to remotely shutdown the system in emergencies.
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MNBN Installation Instructions (continued) IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - These instructions contain important safety and operating instructions for The MNBN BirdNest Power Supply Board. 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. These instructions are not meant to be a complete explanation of a renewable energy system.
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MNBN Installation Instructions (continued) Installing the MNBN BirdNest Power Supply Power Supply PCB: You will need: 3/16” Slotted screwdriver, #1 Phillips screwdriver, Wire strippers, ¼” nutdriver and a wire crimper to attach lugs. First, verify contents of the MNBN BirdNest Power Supply Kit. Parts included with MNBN Power Supply kit.
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MNBN Installation Instructions (continued) Installing the MNBN BirdNest Power Supply Power Supply PCB: Continued Step 1: Remove the top cover and deadfront (Page 3). Step 2: Remove plastic supports (2) by removing screws from the back side of the combiner. Set aside to reinstall later. Step 3: Place the Formex insulator as shown. Step 4: Install metal standoffs (2) and Reinstall plastic PCB supports (2) removed in Step 1.
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MNBN Installation Instructions (continued) Installing the MNBN BirdNest Power Supply Power Supply PCB: Continued Note: Circuit board is shown without non-removable clear cover. Step 5A: Set board in place as shown. Step 5B: Secure board with 6-32 screws (2). Loosen wire bundle from switch Trim wires to 5” and strip ¼” Step 6: Connect the two black wires to The left side of the terminal block marked “BK1” and “BK2”. Connect the two red wires to the right side of the terminal block marked “S1” and “S2”.
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MNBN Installation Instructions (continued) Installing the MNBN BirdNest Power Supply Power Supply PCB: Continued Step 7: Strip one end on the red and white wires included in the kit ¼” and connect them as shown with the red wire on the left side of the terminal block marked “PV+” and the white wire on the right side marked “PV-“. Route the wires downward under the large switch. Step 8: Installing the included MNSPD Surge protector with the MNBN. First, select the mounting location for the MNSPD.
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MNBN Installation Instructions (continued) Installing the MNBN BirdNest Power Supply Power Supply PCB: Continued MNPVHV4 TYE 3R Shown wired with MNDiscoPSB power supply board and MNSPD surge protector. Step 9: Verify your work and replace deadfront and top cover.