Call (888) 338-0183 or click here for solar pricing


Cross-Mating PV Connectors
Oct10

Cross-Mating PV Connectors

DIY Solar Tip:  Cross-mating may not be the best idea. There are over thirty other connector manufacturers in the PV industry today: Amphenol, Weiland, Radox, Tyco, Bizlink, and SMK, just to name a few.   MC4, or Multi Contact connector for four square millimeter cable, is the standard locking system in the PV industry today. There are some manufacturers that will make the claim that their connectors are compatible with MC4. It is important to note that even though it is often possible to physically connect these, it does not mean it is an approved connection.  Though H4 connectors are often marketed as “fully intermateable with industry standard,” this interconnection is not approved by UL, or Underwriters Laboratories. Amphenol, the manufacturer of H4 connectors, has released reports TUV tests to confirm the compatibility between H4 with MC4.  In fact, these connectors have frequently been intermated with MC4 connectors, but it still does not have UL approval.  Even if both connectors have UL approval individually, connecting the two is not approved by UL. Cross-mating can cause additional problems, therefore GoGreenSolar.com does not recommend cross-mating connectors as a general rule of thumb.    Unless the connectors come from the same manufacturer, they often times have different chemical compositions, which can lead to oxidation and other complications. When different connectors are interconnected, potential gaps in the connection can also cause arcing and ultimately, failure. Just because they will “fit” doesn’t mean it is kosher. ...

Read More

UL to test Solar PV Panels

good news! Underwriter Laboratories (UL), focusing on product safety testing and certification has opened North America’s largest photovoltaic (PV) testing center. The center located in San Jose, CA focuses strictly on Solar PV Panels, which turn sunlight into electricity. UL will finally be able to get solar pv products tested and onto the market much faster, thus offering more reliable and safer products for consumers like yourself. UL has always been a seal that has been trusted for consumer products, we are glad they have dedicated a testing facility just for solar pv panels, because we saw it to be a bottleneck in the industry. The lab has 14 test chambers and two solar simulators which provide both indoor and outdoor testing environments. The facility will also test power generation system accessories. The center will serve as a R&D lab for solar panels also which may push newer more efficient solar panels to the market even quicker then we are seeing. I suppose UL certification can help eliminate a myth some consumers believe in about solar power, “solar panels are just not reliable.” In fact solar panels are very reliable and now the industry has the full backing of UL. Look forward to many solar power products stamped with the UL seal in the near...

Read More