UL 1449 Certified Surge Protection Devices for RVs

[avanti]

Originally Posted by markopolo

Any guesses as to what effect connecting both line wires from the Leviton would have in an RV? I'm asking because a Siemens surge protector-in-a-breaker QSA1515SPD or QSA2020SPD would make for an easy install. No sharing of breakers (if code permitted) or additional breakers or space saver breakers needed. It has two single pole breakers. However, there's no option to not use one of the connections as you can with the Leviton.

Are you asking what would happen if more than one surge suppressor was connected to the same phase? I don't think it would do any harm. In the case of a transient event, my guess is that it would be a roll of the dice. Either one or both of the MOVs would sacrifice itself. I don't think there would be any compromise of the protection, though (although I am no expert).

As for the circuit breakers specified in the Leviton install: I am not inclined to lose much sleep over them. I suspect they are specified mostly to provide a code-compliant way to connect the device to the breaker-box bus in a residential situation. My intention is to wire the 30amp input through a Blue Sea 8077 AC main and then simply wire in the Leviton device through an in-line 20amp fuse. I am not even sure the fuse is necessary, but it couldn't hurt.