A breaker bar is used to loosen very tight nuts. Essentially, a breaker bar is just a very long wrench. The extra length allows the user to provide more torque and get the nut moving. After loosening, a more easily wielded wrench may be used.
The amperage capacity of the main bus bars and the connection of the main breaker to the bus bars.
The panel and breaker have to be of the same manufacturer. This way the breaker will fit into the panel. If the panel has a push in bus bar, the breaker must also be the type to accept the bus bar. If the bus bars in the panel are of the bolt in type then the breaker also has to be a bolt in breaker.
The voltage before the breaker is from the distribution panel's buss bars. This voltage is controlled by the panel's main breaker. To have no voltage on the terminal of the breaker means that either the breaker is shut off or it has gone into a trip position. If it has tripped push the handle of the breaker to the off position and then to the on position. This should reset the breaker. If the voltage is not present at the output terminal of the breaker after resetting it, then replace the breaker as it has a fault in it.
On a 15 amp household breaker there is no terminal on the in feed of the breaker. The breaker either plugs into the distribution panel's bus bar or it bolts to the distribution's bus bars. The feed conductor connects to the load side of the breaker at its terminal lug.
A miniature breaker is just two breaker that fit into one breaker slot. These types of breakers are designed to install the same as a full size breaker. Different types of breakers have different mounting configurations to the panels bus bars so installation instructions are not possible without knowing the make and type.
You can buy the Bonk Breaker energy bars at some department stores. But of course like you said you can buy them online at places like Amazon very easily.
A shunt trip breaker is installed like any other molded case breaker. The only difference is that it has an internal tripping coil that is usually connected to a C.T. The breaker is usually mounted in a MCC cabinet The top of the breaker is bolted to the MCC bus bars and the bottom of the breaker is connected to the load. The load conductors pass through the C.T.'s.
An electrical breaker is a safety device used to open a circuit that has an electrical fault on it.
A breaker is a device that is used to connect and disconnect the buss bars of an electrical panel to the feed end of wires that feed an electrical load. The function of a breaker is to protect the wires from an overload by the use of an internal thermal trip, and to protect the load and wires from a short circuit by use of an internal magnetic trip.
mineature cicuit breaker
The key to breaker compatibility is if it fits correctly into the buss bars in the electric panel.
No, the 50 amp breaker should not be getting hot with a 17 amp load. Shut the service off at the disconnect and check the bolts that tighten the breaker to the distribution's bus bars. Check the tightness of the load side of the breaker. if all of these connections are tight then change the breaker out for a new one.