Where does “gawai proteksi arus sisa” come from?

gawai proteksi arus sisa (Indonesian) comes from Indonesian arus sisa, from Indonesian arus, from Malay arus, from Proto-Malayic harus, from Proto-Malayo-Polynesian qaʀus — current.

gawai proteksi arus sisa (Indonesian): residual-current device, residual-current circuit breaker, ground fault circuit interrupter, ground fault interrupter, appliance leakage current interrupter