Yes it will. The 50 amp suppressor only differs from a 30 or 20 amp in that it has two circuits to protect (two 50 amp 120 volts AC circuits). When you use the 30 amp adapter it will simply feed the same single circuit through both suppressor circuits.
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2007 Allegro Bus 42 QRP, 400 ISL now 2017 LTV Serenity on a 2016 Sprinter chassis
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