最大 さいだい正規 せいき電圧 でんあつでしょう
saidaiseikiden'atsudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 最大正規電圧

1. Probably the maximum rated voltage.; Likely the maximum normal voltage.

Polite
Presumptive
Conjecture
Computing