MidNite Solar MNPV6 Disco AC Combiner Box
MidNite Solar, MNPV6 Disco AC Micro Combiner, 3, 2 Pole 20A breakers, 240VAC, NEMA 3R, MNPV6 -Disco AC Micro
The PV combiners with disconnects in the MidNite Disco line are designed to meet NEC requirements. For visibility, the disconnect handle is bright red and can be locked in the off spot. When both the positive and negative legs of the array need circuit safety, some models can be designed for bi-polar or non-isolated inverters. Models are available for arrays of 150 VDC, 300 VDC, and 600 VDC. For long life in harsh environments, all of the combiners are made of powder-coated aluminum. Both Disco combiners come with a flat see-through dead front. Models with NEMA 3R or NEMA 4X ratings are available. Many of these have a shunt-trip disconnect and are compatible with the MidNite Rapid-Shutdown system to meet NEC 2014 specifications when supplied with the PSB circuit board. Breaker models are devoid of breakers. Except for the MNPV4HV Disco 3R Simple, which includes fuse holders, all HV models come with fuse holders.
Both dual-string fusing and dual-channel output are possible on the MidNite DLTL disconnect combiners. These are suitable for inverters with ungrounded conductors and dual-MPPT input channels, both of which are becoming increasingly popular. The fuse holders are included, and both the positive and negative legs are fused. They can also be ordered with a Rapid-Shutdown PSB circuit board.
The MidNite SOB disconnect boxes are not combiners, but they are used to transition from array to conduit wiring via an array disconnect. They can disconnect dual-channel output, one or two strings, and have two or four poles. Inverters with grounded or ungrounded conductors and dual-MPPT input channels may use these. For use with combined circuits, MNSOB boxes with the suffix "-75A" are rated at 75A per pole. They can also be ordered with a Rapid-Shutdown PSB circuit board.
The MidNite MNPV6-DISCO AC MIC is a simple disconnecting combiner for up to three micro-inverter circuits running at 120/240 VAC. For visibility, the disconnect handle is bright red and can be locked in the off spot. For long life in any setting, it's made of powder-coated aluminum. On page 176, add two-pole AC DIN mount breakers. For each micro-inverter circuit (up to three), add one two-pole breaker.