also: あんぜんブレーカ
safety breaker; circuit breaker
Electrical safety device that automatically interrupts current flow in case of overload or short circuit. Technical term used in electrical engineering.
The safety breaker tripped, so the power went out.
Please turn off the safety breaker before construction work.
Standard spelling with long vowel mark in ブレーカー.
Variant without the long vowel mark; less common but seen in some technical contexts.
Compound of 安全 (safety) and ブレーカー (breaker), a loanword from English 'breaker'.