The MNPV8HV-DISCO-3R-20 PV Disconnecting Combiner has 5 poles, 80 Amp or 160 Amp Busbars depending on how they are configured. Switch is a 100 Amp load break rated or 175 Amps load break rated depending on configuration and 600 volt max. This is the same combiner box as MNPV8HV-DISCO-3R, but comes with 20A fuses.