The circuit breaker can be reset by pushing the handle to OFF and then to ON. Trip indication immediately distinguishes the circuit from any other circuit which is merely in the on or off position. The Visi-Trip indicator is only visible when the circuit breaker has tripped. Which one works best for you depends on the specific wiring of your home, but like any other kind of breaker, a 30 amp breaker is very simple to install. When the circuit breaker has tripped, the handle assumes a center position and the red Visi-Trip indicator appears in a window in the circuit breaker case. A 30 amp breaker can handle a stronger current than a 20 amp breaker, which can handle more than a 15 amp breaker and so on. QOB circuit breakers have Visi-Trip® trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. Mini circuit breaker, QO, 30A, 2 pole, 120/240VAC, 10kA, bolt on mount, AC shunt trip. Each pole has an individual thermal-magnetic trip element calibrated for 40☌ ambient temperature. Use 8-2 copper wire if your run is over 150 feet. The tripping mechanisms in three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to open simultaneously. (This breaker has one handle and one terminal for the hot wire to connect.) Enough UF-rated 10-2 copper wire to run from the breaker box to the RV pedestal. ![]() QOB circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quickbreak action and positive handle indication. ![]() Bolt-on QOB circuit breakers are for use in NQO and NQOD panelboards. QOB Bolt-On Three-pole thermal-magnetic circuit breakers provide overcurrent protection and switching on AC and DC systems. A 30-amp single-pole and double-pole breakers require a minimum of 10-gauge. Square D QOB330, Mini Bolt On Circuit Breaker, 3 Pole, 30 Amp, 120/240 VAC, 10 kA, 14-8 AWG Copper, Aluminum 10-gauge wire can accommodate a 30-amp breaker until you reach 150 feet.
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