A Forum run by Enthusiasts of MidNite Solar

Charge Controllers and Clippers => The "Classic" charge controller => Topic started by: EW Zuber on August 11, 2014, 05:08:34 PM

Title: Wire size
Post by: EW Zuber on August 11, 2014, 05:08:34 PM
It looks like the Classic 150 will take #4 wire to the mechanical terminals? Couldn't find this addressed in the manual.
Title: Re: Wire size
Post by: Vic on August 11, 2014, 05:21:04 PM
Am (almost) certain that the Classic terminal block will accept #4 AWG Building Wire.  In the USA  cable like THHN should work-- 19 conductor type cable,  NOT Fine Stranded

It may be a bit of a tight fit into the block.

#4 AWG IS listed in the Breaker Sizing Table in the Classic Manual Appendix ...

Will try to look in Threads here,  as it has come up before.  FWIW,  73,    Vic
Title: Re: Wire size
Post by: Westbranch on August 11, 2014, 06:17:41 PM
right below figure 17 on page 26 of the Classic owner’s manual


The Classic's DC terminal connectoris located on the circuit board as shown in. The connector will take up to a #4 AWG. #4 AWG THHN when installed in the Classic and MidNite E Panel is rated for over 100 amps and is therefore suitable for the highest power available from the Classic 150.
Title: Re: Wire size
Post by: Vic on August 11, 2014, 06:39:54 PM
...  AND on Pg 29 of the Jan '13 Classic Manual,   ...
"Maximum and Minimum Wire Size
The Classics Blue DC terminal connector will accept wire from #14-#4 AWG
The Classics Aux 1 and 2 terminal connector will accept wire up to #18 AWG   ... "

FWIW,  Vic
Title: Re: Wire size
Post by: Rybren on August 11, 2014, 09:22:46 PM
I THINK that the DIN rail breakers that many of us use will only accept up to #6 AWG
Title: Re: Wire size
Post by: Vic on August 11, 2014, 10:14:54 PM
You could use MNEDC Panel Mount breakers --  with ratings to 100 A.

AND,  these DIN-Rail breakers sized at 80 and 100 Amps,  accept up to # 2 AWG,  but occupy two DIN breaker spaces:

http://www.midnitesolar.com/productPhoto.php?product_ID=364&productCatName=Breakers&productCat_ID=16&sortOrder=19&act=p

http://www.solar-electric.com/installation-parts-and-equipment/midnite/cipr1/stfubr1/misomn150vdc.html

  FWIW.  Good Luck,   Vic
Title: Re: Wire size
Post by: vtmaps on August 12, 2014, 05:50:46 AM
Quote from: Vic on August 11, 2014, 05:21:04 PM
Will try to look in Threads here,  as it has come up before. 

Here's some early history of the Classic terminal block:
http://www.midniteforum.com/index.php?topic=581.0

Here's one from NAWS:
http://forum.solar-electric.com/showthread.php?16508

--vtMaps
Title: Re: Wire size
Post by: EW Zuber on September 03, 2014, 05:35:32 PM
Thanks Guys.