Combiners and Disconnecting Safety Equipment.
PV Disconnecting Combiners
Disconnecting combiners are a weather resistant box that takes the AWG wires from the solar panels or separate arrays and combines all the wires into a main breaker or fuse box with a disconnect blade handle to quickly shut down the system. Each piece of equipment in a PV system, such as inverters, batteries, and charge controllers, must be able to be disconnected from all sources of power (NEC 2011, Article 690.15). Breakers and fuses are sold separately and are not included.
Combiners and Disconnecting are similar to plain combiners except they have a visible blade to disconnect the entire array and can be locked out for servicing the array. Like combiners disconnecting combiners can be placed anywhere but the safest and most cost efficient location is near the array. Typically on a ground mount rack the combiner / disconnect would be placed on the back of the rack shaded by the panels.
|MidNite Solar MNPV Combiners with Disconnect Switch Guide|
|The MidNite Disco line of solar combiners with disconnects incorporates NEC 2011 requirements. The disconnect handle is bright red for visibility and can be locked in the off position. Several models can be configured for bi-polar or non-isolated inverters where both the positive and negative legs of the array need circuit protection (maximum output current is split also). Models are available for 150 VDC, 300 VDC, or 600 VDC arrays. All of the combiners are made from powder-coated aluminum for long life in harsh conditions. A clear see-through dead front is supplied with all Disco combiners. Models are available with either NEMA 3R or NEMA 4X ratings. Many of these come with a shunt trip disconnect that enables the MNDiscoPSB to trip the disconnect remotely. An MNSPD-600 is included standard with many of these combiners. See the table below for options that are available or included. Breaker versions do not include breakers. HV versions come with fuse holders except for the MNPV4HV Disco 3R Basic.|
|PV Source Circuit Options||Output Circuits|
|Model||Max # 150 VDC Breakers||Max # 300 VDC Breakers||Max # 600 VDC Breakers||Max # 600 VDC Fuses||Max # Output Circuits||Max Current Output||Max Output Wire Size||MNPV Combiner Dimensions
(L"x W"x H")
|Weight||Birdhouse Trip Option / MNSPD||Part Number|
|MNPV6 Disco||6||--||1||--||2||120 A||1/0 AWG||12.7 x 7.9 x 7.5||6 lbs||No||053-03000|
|MNPV6-250 Disco||--||3||--||--||1||120 A||1/0 AWG||12.7 x 7.9 x 7.5||6 lbs||No||053-03001|
|MNPV6 Disco AC Micro||--||3 AC||--||--||1||120 A||1/0 AWG||12.7 x 7.9 x 7.5||6 lbs||No||053-02984|
|MNPV4HV Disco 3R Basic||--||--||--||4||1||80 A||1/0 AWG||15.4 x 18.4 x 5||8 lbs||No||053-02990|
|MNPV4HV Disco 3R Dlx||--||--||--||4||1||80 A||1/0 AWG||15.4 x 18.4 x 5||10 lbs||Opt/Yes||053-02991|
|MNPV6HV Disco 4X||--||--||--||6||1||125 A||2/0 AWG||20.8 x 17.3 x 5.8||14 lbs||Opt/Yes||053-02992|
|MNPV8HV Disco 3R||--||--||--||8||2||160 A||2/0 AWG||23.4 x 19.3 x 5.4||16 lbs||Opt/Yes||053-02993|
|MNPV8HV Disco 4X||--||--||--||8||2||160 A||2/0 AWG||23.4 x 19.3 x 5.4||18 lbs||Opt/Yes||053-02994|
|MNPV16HV Disco 4X||--||--||--||16||2||230 A||350 mcm||23.5 x 26 x 5.8||27 lbs||Opt/Yes||053-02995|
*Only with Breakers, and One Negative Busbar **120 A for 150 VDC Breakers and 80 A with 600 VDC Fuses
|MidNite Solar MNPV Combiners with Disconnect Switch|
MidNite and OutBack Combiners & Disconnects Ship in 3 - 5 Business Days After Funds Clear subject to seasonal increases and available inventory.
|MidNite Solar Combiners / Disconnecting - AC Micro Inverter|
|Part Number||Product||Data||Install||Price||Add to Cart|
|5100202||Midnite Solar, MNPV6 Disco AC Micro Combiner, 3 Pole, 240VAC, NEMA 3R, MNPV6 Disco AC Micro Combiner|
|MidNite Solar Stop Switch for DC Wind Turbines|
|MidNite Solar's Stop Switch allows you to stop an AIR wind generator and disconnect it from the battery, all in one motion. The MN-Stop Switch comes with a neutral bus bar and ground box terminal. Rated for wind turbines up to 63 amps at up to 150 VDC. Enclosure size: 9"H x 5"W x 4"D. Weight 3 lbs. ETL Listed for the U.S.A. and Canada.|
|Part Number||Product||Install||Price||Add to Cart|
|05300121||Midnite Solar, MNSTOPSWITCH, Stop Switch for Wind Turbines, 63 AMP 150 VDC|
Combiners and Disconnecting Safety Equipment.
electrical distribution parts
Combiners and other Disconnecting solar safety equipment are different from junction boxes or the commonly used term “J-box). Combiners and disconnects not only allow for the combination of multiple strings down to one or two outputs, but also provide a fast means of shutting down the array at the panels. Sections 690-4(c), 690-14(b), and 690-18 of the National Electric Code talks to this application and make the combining disconnect an essential component of a code-compliant system.
Combiners and Disconnecting Weatherproof Box
Combiners located outside at a minimum must be NEMA 3R rated and UL listed. The MidNite Disco line of solar combiners with disconnects incorporates NEC code standards. Additionally, conduit and strain reliefs use at the knockouts will keep the inside of the box dry and protect the jacket of the PV wire.