main switch
Primary power cutoff
A main switch is the primary control that governs power to an entire system or building.
Flipping the main switch cuts or restores electricity to everything downstream: The electrician turned off the main switch before working on the wiring.
In machinery, the main switch serves as the master on/off control.
- breakerWave that collapses shoreward
- toggleTwo-position switch
- circuitClosed electrical pathway
- electrical panelCircuit breaker housing
- panelDistinct flat section
power · power cut · cutoff · fuse · fuse box · electrical · control · lever · disconnect · flip · shutoff · killswitch · kill the power · junction · box · voltage · trip · safety
- switchespush button, toggle, microswitch, killswitch, emergency stop
- AC electricityAC, alternating current, hertz, sine wave, voltage
- Electrical Panelcircuit breaker, fuse, isolator, terminal block, surge protector