0
Both fuses and circuit breakers cut off a circuit from its power supply when the total current through the circuit exceeds the current rating of the fuse or circuit breaker, usually due to a short to ground or overloading of the circuit. Both use materials that respond to heat.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoCircuit breakers and fuses both have the ability to interrupt current when more than a preset current flows through the fuse or breaker. A breaker can be reset when the over current fault is over, but a fuse is permanently "blown" by the over current and must be replaced.
Add your answer:
Earn +20 pts
What fuses and circuit breakers provide protection in the event of?
Short circuit fault.
What devices are used to deliberately create an open circuit when the current exceeds a specific value?
fuses or circuit breakers
What are two methods used in most circuit breakers to protect electrical circuits?
There is a heated bimetallic strip that provides a time delay small overload protection. When its contact makes, it energizes a coil to trip the breaker. Some breakers are mechanical, though. There is a coil that trips the breaker instantly on large overload.
Does the National Electrical Code allow fuses or circuit breakers to be installed in parallel?
Yes, but only factory assembled units listed as such.
How do you work air circuit breaker with air?
circuit breakers are switches that open quickly usually opening with a fault condition air circuit breakers need a long path to quench the arc oil filled circuit breakers quench arcs much more effectively and in a smaller space vacuum breakers have no media for an arc to propagate and are far smaller fuses generally are filled with silica sand to quench the arc and higher currents make the arc path much longer typical AIC fuses 200,000A air breakers 15,000A oil breakers 50,000A vacuum breakers 100,000A fuses work once and work correctly and dont fail or weld closed they are inexpensive and safe breakers can work tens of times breakers need rework and recalibration whenever they are reset breakers have mechanical moving parts tempered springs and require periodic maintenance and testing Breakers can weld shut with a short
What are the circuitrotectors?
Circuit protectors are fuses and circuit breakers.
Which of these are alternatives to fuses?
circuit breakers
Does a 1977 Harley fl have fuses?
No fuses, but it does have circuit breakers.
What are the two most common methods of circuit protection in structures?
Fuses and breakers
Circuit breakers are used for the same purposes as?
fuses
Are easier to use than?
circuit breakers ...fuses
What fuses and circuit breakers provide protection in the event of?
Short circuit fault.
How do fuses or circuit breakers help protect homes?
During an electrical fault, be it a short circuit or circuit overload, fuses and breakers are designed to open at a specific amperage. This opening of either device eliminates a fire hazard before it gets a chance to start. This is how fuses and breakers protect the home.
When did circuit breakers replace fuses in homes?
1950's
Is a circuit breaker an alternative fuses?
Circuit breakers do the same thing as fuses. They interrupt current flow when a certain preset point is reached. The difference between circuit breakers and fuses are that circuit breakers are resettable and reusable, whereas fuses are one time devices that must be replaced after they blow.
What are the main protective devices in a power system?
Circuit Breakers or fuses.
What protects circuits and their components?
Fuses, fuseable links and circuit breakers.
