A circuit breaker may be red but not tripped due to a fault in the wiring or a malfunction in the breaker itself. It is important to have a qualified electrician inspect and repair the issue to ensure safety and proper functioning of the electrical system.
A circuit breaker can go bad from being tripped too many times. Many people don't understand that the tripping of a circuit breaker indicates a problem that needs to be corrected. They usually just reset the circuit breaker, leading to a very common second (or third, or fourth) trip. Circuit breakers tripping are for the prevention of fire due to excessive heat in the circuit. They're not supposed to be tripped repeatedly. This can wear the breaker out. Believe it or not, I've also seen circuit breakers fail to re-energize after being turned off. I speculate this was actually caused by the breaker never having been cycled (it was a main breaker), and the time elapsed since it was installed. Electrical equipment doesn't last forever. It's the same as anything else.
As far as a fuse like in a car or even larger versions of the fuses in a car you should be able to see inside the little wire; if the fuse has burnt amd is split in two parts the fuse has been broken. In a circuit breaker it works a little differently, instead of burning out and needing to be replaced, the breaker will "trip" this means there is too much current being drawn through the circuit and the setup cannot handle it. A breaker instead will click to the off position and the switch will flip from on to off. These are much easier to locate than a burnt fuse because in a breaker box usually all the switches are turned to on and in the same direction, so the one breaker that did trip will be pointed in the opposite direction. Simply flip the switch from off to on and its been reset. If the breaker keeps tripping then there is either a short or you have too many loads (appliances) running on that circuit, for instance a power strip with 6 things plugged into it all running at the same time.
If you have a light that is not being powered through a circuit breaker or fuse, you should call a qualified electrician to remove this circuit from the panel's bus and install a circuit breaker for it. Without an overcurrent protective device (circuit breaker or fuse) you have a potential fire hazard.
The anti-pumping relay is a device in circuit-breaker whose function is to prevent multiple breaker closures. For instance, if the operator gives the closing command to the breaker by pressing the close button and the breaker closes. However, a fault in the system causes the breaker to trip. Since the close command is still in the pressed condition, there is a chance of the breaker closing again and being tripped by the relay multiple times. This can damage the closing mechanism of the breaker. The anti-pumping relay prevents this by ensuring that the breaker closes only once for one close command from the control panel.
an interlocking device
A trip free circuit breaker is one that will disconnect a circuit even if the manual switch is held at the "on" position. It is a safety feature to prevent a circuit breaker being disabled either deliberately or accidentally.
The breaker keeps tripping after being reset because there is likely an electrical overload or short circuit in the circuit it is protecting. This causes the breaker to trip as a safety measure to prevent damage or fire.
Your power may have gone out suddenly due to a variety of reasons, such as a blown fuse, a tripped circuit breaker, a fault in the electrical grid, severe weather conditions, or maintenance work being done by the power company.
To identify the type of breaker being used in a circuit, look for the markings on the breaker itself. Different types of breakers, such as AFCI, GFCI, or standard breakers, will have specific labels or symbols on them. Additionally, you can consult the circuit breaker panel's labeling or the manufacturer's documentation for more information.
A circuit breaker is an overcurrent protection device. As well as being able to open and close a circuit supplying its rated load, a circuit breaker must also be capable of interrupting and closing onto an overcurrent, including a short-circuit fault, without damaging itself.
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
The green light on a GFCI outlet indicates that the outlet is receiving power, but it does not necessarily mean that the outlet is providing power to connected devices. The lack of power could be due to a tripped circuit breaker, a faulty GFCI outlet, or a wiring issue. It is recommended to check the circuit breaker, reset the GFCI outlet, and inspect the wiring to troubleshoot the issue.