: To prevent lockout during a power failure, the system can include a battery backup capable of up to 100 cycles .
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Yes. The "100" refers to 100 amps. A 50-amp RV (two legs of 50A) requires two units or a 100A sub-panel. One SE unit perfectly protects a 30-amp RV or a single 100A leg. : To prevent lockout during a power failure,