Solar Combiner Box, PV Combiner Box with Circuit Breaker (4 String Combiner Box)

on the upper left you can see the combiner box in a real-world scenario. 1200 watts 3 different string of panels are running through it. would buy and recommend over and over.

Opened to inspect, two screws in the bag, three missing from the bus bars, only one in place, it was stripped and at an angle. all four holes stripped. Absurdly no QA. For the price I expected better. It is all made from cheap plastic material. It is obvious they used a power screw driver.Spend the few extra dollars and buy something better.Don't waste you money on this product.

The metal box is amazing. For my project I removed the some of the internal components and rewired using my own lightening protection but overall I was very pleased

The MC4 input connectors are reversed.

Excelente

The wiring was done incorrect m4 connection is reverse so when connected negative is on the positive and positive is flowing on the negative. It can damage your charge controller.

only thing good about this device was the price - poor quality build - missing screw, components crammed together and not sitting on rail - wires too short to reach terminals properly - concerned it would be a fire hazzard

Since the MC4 input connectors are reversed I just made a short wire with the same type of connector on each end and that reversed the polarity and made the proper connection. Otherwise, it is very well made and I would buy another one if I needed it.