1. depreciation (economics, accounting)

2. an RCD, a GFCI: ellipsis of ממסר פחת (mimsár pkhat, “residual relay”) or ellipsis of ממסר פחת זרם (mimsár pkhat zérem, “residual current relay”) or ellipsis of מפסק פחת (mafsék pkhat, “residual circuit breaker”), etc. (colloquial, electricity)