2:14. For those who don't know, this panel with no main breaker is likely a split bus panel, common from the 1950s until the late 1970s and banned in 1981 for new installations. When properly installed, you should be able to shut off all power with 6 hand movements or less. In most of these panels, all the 240 volt appliance circuits (range, dryer, air conditioner etc) and breaker that controls all the 120 volt circuits on the lower half of the panel, sometimes labeled main, sub-main, lighting, or lower bus, are located on the upper half of the panel. Essentially all breakers on the upper half of the panel must be turned off, to kill all power to the house.
