配線 はいせん よう遮断 しゃだん でしょう
haisen'yōshadankideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 配線用遮断器

1. Probably a circuit breaker.; Possibly a circuit breaker.

Polite
Presumptive
Conjecture
Electrical Engineering