Combiner Box

Amazon

• Non-UL [1]
  • 250 VDC max input

UL Listed

• Combiner box only $250. [2]
  • Only 125 VDC in.

Voltages

• 1000V for this one - [3]
• Why are others limited to 250V? Because the circuit breaker is 250V - [4]
• Go to Midnite for higher V combiners? [5]
• Most fuse holders are rated for 600-1000V, while DC breakers are 150V [6]
• With 600VDC YRSP-D2 [7] circuit breaker - [8]. Combined wire is fatter, at least 10 ga. Circuit breaker appears to be 600Vdc rated [9].
• 500VDC - [10]. Combined output appears to have 12 ga wire, or 20A max. Would need 10 ga for 30A combined output, so this is really only good for 20A.

Wire

• PV wire - [11]

Fuses

• Not cheap at $4 each [12]

DIY

• Article from 2000 in Homepower Magazine - [13]