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Sizing circuit breakers for motors falls into a different category. Because of the inrush of current when the motor is in the stopped position, the breaker has to be sized to allow for this. Breakers usually are 250% of the nameplate full load amp rating. The wires that feed the motor are sized to 125% of the full load amps of the motor.
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RafaFor a 26 amp motor, a 30 amp breaker would typically be used to provide some buffer for the motor's startup current. This allows for safe operation and prevents nuisance tripping of the breaker due to temporary current spikes. Always check the manufacturer's recommendations for the motor to ensure proper sizing.
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How much current does it take to trip a 30 amp automotive circuit breaker?
In a typical US automobile, a 30 amp fuse will sustain a constant load of 360 watts. Fuses and circuit breakers perform on an "I squared t" rule. For example, a 30 amp fuse will not blow on 31 amps for a very long time. A 20 amp breaker can take anywhere from 10 minutes to two hours to trip on 25 amps. We simply dumb it down so that laymen and technicians need not make mistakes. Power on seven 100 watt light bulbs simultaneously. That means a circuit suddenly provides 50 amps. 50 amps does not trip a 15 amp or 20 amp breaker, again, due to the "I squared t" rule. A 50 amps load only exists for tens of milliseconds. Not long enough. A 30 amp continuous appliance will not trip a 30 amp breaker. But a safety margin means limiting 30 amp appliances to 26 amps or less. Meanwhile, an 18 gauge lamp cord wire typically rated for 10 amps will actually conduct up to 50 amps continuously. Again, that wire is oversized for other safety reasons. And to keep it simple. These concepts apply to fuses vehicles and structures.
Your electrical dryer keeps popping the circuit breaker?
There may be an overload on the circuit, a short circuit in the dryer, or a faulty circuit breaker. To troubleshoot, try running the dryer on a different circuit to see if the issue persists. If it does, have an electrician check for any internal problems with the dryer. If the problem is only on that specific circuit, have an electrician inspect and potentially upgrade the circuit to handle the load.
How many 75 watt bulbs can be placed on track lighting with 20 amp breaker?
Assuming each 75-watt bulb draws 0.625 amps (75 watts / 120 volts), a 20-amp breaker can handle up to 32 such bulbs (20 amps / 0.625 amps per bulb). However, it is recommended to not exceed 80% of the breaker's capacity, so in practical terms, around 25-26 bulbs would be a safe maximum to ensure the breaker does not overload.
What you basically want is will each phase take 26 Amps current for 15HP 3 phase 415VAC motor?
Yes, for a 15HP 3-phase 415V AC motor, each phase will draw approximately 26 Amps of current when running under normal operating conditions. This results in a total current draw of 26 Amps per phase for the motor.
What city in the US is at 26 degrees north and 81 degrees west?
There is no city at this point. It is located at the Big Cypress National Preserve in Florida.
