Instructions / Assembly

MNPV6 Disco / -250 / AC Disco Installation Instructions Cont.
4 | P a g e 10- 1 8 3 - 1 R E V : B
Handle Installation
To avoid possible damage to the combiner parts it is important to follow these instructions carefully.
1. Turn off breakers.
2. Move handle to the off position.
3. Orient the grabber as shown.
4. Close cover. Do not use force.
With the breakers and the handle in the Off position,
place the grabber into the opening In the handle where shown
(Photo right and image on slider).
Ensure that the grabber lines up with the rail on the circuit
breaker slider. Check for proper actuation by
moving the handle and listening for the breakers.
Slider
The MNPV6 Disco’s busbar can be split into two sections making the MNPV6 Disco equivalent to 2 MNPV3
combiners in one. This is sometimes done in 12 and 24V systems where more controllers are required for additional
power. For instance in a 24 volt system using a 60 amp charge controller, you are limited to about 1600 watts of PV
per controller. If using Kyocera KC130 modules, you can make three strings of 4 modules in series. This adds up to
1560 watts per controller. That is a good match of PV vs. controller capability. The MNPV3 can accommodate this
arrangement directly, but the MNPV6 Disco can accommodate two of these systems, thus saving wiring, space and
money. See the following figure on splitting the busbar into two systems.
Grabber
Busbar for 300VDC Breakers. (MNPV6-250 Disco)
300 VDC breakers take up two spaces and require a
larger busbar. Install the busbar into the connection
marked “-”on the breakers.