From what I can see the PowerTek-PDC 1009 has a converter rated for 30amps so the Progressive Dynamics # PD4135K would be the closest replacement. You can still go with a higher amperage model with more circuit breaker and fuse space like the # PD4060K, but you'll need to increase the wire gauge running from the battery to the converter. The best option is really going to depend on the demand for your trailer. If you need more circuit breaker and/or fuse ports then sizing up is going to... view full answer...