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Can a breaker with no connected circuit be left in a breaker panel and marked as disconnected?
Wiki User
∙ 11y ago
yes, it will fill the hole in the panel if you have no blank covers, if you want to be sure it is completely inert, disconnect the power lead and cap it.
Wiki User
∙ 11y ago
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Why does your refrigerator keep popping the breaker?
The load current is greater that the amperage of the breaker. Add up everything that is plugged into the circuit. If the total is greater that the number marked on the handle of the breaker unplug some of the equipment.
Is the amperage of a breaker for total amps combined or on each leg?
The breaker will trip at the amperage notated on the breaker. If it's 100A...it will trip at or around 100A. It does not matter if that breaker is physically tied to another 100A breaker. To understand this, imagine that you remove the mechanical tie from the two-pole breaker. Now you just have two 100A breakers. In actuality, you always had two 100A breakers. The mechanical tie does not change that. If you then powered two, separate 120 volt devices from the two breakers, each breaker would allow 100 amperes to pass to each of the devices before tripping. So why are they tied together? That is done when the two-pole breaker is to be used to power a 240 volt circuit. In AC current, electricity flows in both directions. In a 120 volt circuit, it flows "out" toward the device via the hot (generally the black wire) and "back" via the neutral (generally the white wire). Then the cycle reverses. It does this 60 times per second (60Hz). The amperage in the hot and neutral wires are the same (in the perfect world). Only the hot wire is connected to the breaker. In a 240 volt circuit, there is no neutral wire. You are using two "legs" of 120 volts each that are 180 degrees out of phase with each other. In other words, as leg 1 is flowing "out", leg 2 is flowing "back". Because they are out of phase, the potential difference is twice the voltage of each line or 240 volts. The current flows out and back at the same 60 Hz but this time via the two hot wires (generally black and red). Each of these hot wires are connected to the two terminals of the two-pole breaker. Due to mechanical tolerances, one breaker will most likely trip before the other. Therefore, if the rated current, (100 amps), is exceeded on either breaker, that breaker will trip and the other breaker will trip via the mechanical tie. This ensures that all power to the outlet is disconnected. If you removed the tie and only one breaker tripped, there would still be 120 volts connected to the outlet. In summary, each leg of a single, double (2 phase) or triple (3 phase) breaker is capable of allowing the amount of current denoted on the breaker. The connected circuit, regardless of voltage is protected from exceeding that amperage.
Do you have to size all wire in a house out of the 60c degree column in 310.16 of the nec including the ser cabletype xhhw for the range?
You don't necessarily have to size all wire from the 60c column. However there are three main reasons to do so: 1) The circuit breaker is marked "60/75c" and installed with other breakers in a panelboard 2) Your appliance is not specifically marked for a higher rating (either 75c or 90c) 3) Any part of your circuit is rated at 60c (explained below) In order to use a rating, whether it be 60c, 75c, or 90c, the enclosure, circuit breaker, conductor, and terminals must be rated for use at that rating. This process follows a 'weak link' method, and the rating of the 'weak link' must be used when using Table 310.16. Example: If you have a panelboard rated 75c, a breaker rated 75c (not 60/75), a conductor rated at 75c, and equipment (such as the range) rated at 75c, you are allowed to use the 75c column. If any component is rated lower, everything must be used at that lower rating. **If there is no explicit marking on the range indicating use at 75c or 90c, the range is assumed to be 60c. The same is applicable to all loads.** There is a special circumstance with breakers marked "60/75c"...If you have circuit breakers marked "60/75c", and they are installed together (such as in a 42 circuit panel), you must use the breaker at the 60c rating, and thus size your wire using the 60c column. If the breaker in question is in an enclosure by itself, again marked "60/75c", you may use the breaker at its 75c rating. Check the ratings of the enclosure, breaker, conductor, and terminals, and you may be able to use a higher rating than 60c. (XHHW is rated at 90c in dry and damp locations, and 75c in wet locations.)
How do you completely disconnect the alarm permanently on a 1993 Maxima?
Pull the fuse. Answer---Remove bottom half of driver side dash. there is a white box marked anti-theft remove the plug connected to it and also the other box that is on that bracket and its completely disconnected.
How do you check the breaker on the outside ac unit?
Even though the A/C unit is outside, the breaker for it will be in the entrance panel box inside your home. It should be clearly marked.
How do you determine which side of a breaker is line or load?
The breaker should be legibly marked, or the line side will clip onto the bus bar, and the load side should have a termination screw of some kind for you to attach a wire to it. Some bolt in breakers are not marked, the type you may use in a custom control cabinet and it can be confusing. When vertical mounting, always set the breaker so gravity would open the breaker. Attach the line side to the top lugs. Horizontal mounting, just make sure it is marked for the off position, use either end for load or line.
Fuse panel is not marked which fuse is for windows on 95 cutlass?
The power windows are not run with a fuse. They use a circuit breaker. It should still be in the fuse box but will be much larger and look different than the typical fuse. It may be labled "pwr accsy".....or something like that.
What can you use to find a short-circuit?
A short circuit would blow a fuse. Most fuses are marked as to which circuit they protect. Now that you know which circuit is shorted you can examine the suspected circuit for problems like damaged/pinched wiring to ground.
How do you reset an outside 240V AC condenser breaker box with a black plastic T handle marked ON OFF?
This is pullout disconnect switch. Pull out on the "T" handle to disconnect the circuit. If the word ON is right side up and reinserted the circuit is made. If the work OFF is right side up and reinserted the circuit is off. Some disconnects are fused, they have two cartridge fuses under the cover beneath the pull out. These may need to be replaced if power is not reestablished.
How to shut off power to your house?
If you have circuit breakers there is a double breaker at the top of the row of breakers marked Main. Flip that one and it shuts the house off. Older houses with fuses have a pull out fuse with two long round fuses in a holder. Pull the holder out and everything is dead. There should be two of these holders in the fuse box. One is the main and the other will be for a stove. The main will be marked Main.
What is use of terminals in the circuit?
Terminal represents or are ends in a Electrical Circuit that connects components in Circuit to the Power Source. Terminals are either Positive or Negative marked at the ends denoting the acceptible floe of electrons across the Circuit.
Where are the fuses for window motors on a 1985 Chevy Vandura van?
They should be in your fuse box. You need to get a check light and check all your fuses and replace any that are blown. Sincerely Willie Window motors are powered by the "Accessory" circuit. Most likely it is protected by a 30Amp circuit breaker, not a fuse. It is located in the fuse panel in the slot marked "ACC". It looks like a fuse but has a metal case.
