ブレーカー

ぶれーかー
noun
circuit breaker; breaker
technicalelectronicsbuilding
1. circuit breaker; breaker
A safety device that automatically interrupts electrical flow when it detects an overload or short circuit. Located in the breaker box/electrical panel of buildings.
ブレーカーが落(お)ちた。
The breaker tripped.
ブレーカーを上(あ)げてください。
Please flip the breaker back on.
The breaker trips if you use the air conditioner and hair dryer at the same time.

Etymology

From English "breaker" (short for circuit breaker)

Cultural note

ブレーカー automatically "trips" (落(お)ちる) when:

Common expressions

TYPES (in Japanese homes):

  • 漏電(ろうでん)ブレーカー - ground fault breaker (main)
  • 安全(あんぜん)ブレーカー - safety breaker (individual circuits)
  • アンペアブレーカー - amperage breaker (contract capacity)