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Does a two pole breaker require a trip on both poles or is one trip enough?
Wiki User
∙ 13y ago
Answers for the US:
A true 2-pole breaker (with a single operating handle) is designed such that an overload on either pole will cause a trip, disconnecting both poles. This type of breaker must be used to supply a 240 volt appliance.
Breakers with separate operating handles or separate breakers should never be used to supply 240 volt appliances, because a trip on one of the breakers may not trip the other, leaving the circuit energized - a very dangerous condition. This is absolutely illegal in the US.
Another view:
They make both types. If a 220-240 Volt device is connected to a 2-pole breaker it may be using both 110-120 V to operate. For example an electric stove may have 220-240 V across the heating elements and use 110-120 V for the clock. Hence, if only one pole tripped the stove may appear to be on because the clock is working, but the 220-240 functions won't work. If you find this condition, have it immediately corrected, because it is both unsafe and illegal.
Wiki User
∙ 13y ago
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The magnetic field of a magnet is strongest?
near both its poles
Can you connect a 2 pole load to 2 single pole breakers?
Yes, but the handles should be linked together so if only one breaker trips (phase to ground short) it will kill both poles of the circuit.
One of the 120 volt legs in the main breaker has lost power?
check power coming into the breaker if both leads are hot it's a bad breaker
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No.
Are icebergs from the north or south pole?
Answer this question...Both
Can 50 Amp breaker replace 45 Amp breaker?
Both a 45 amp and 50 amp breaker would require 6 AWG wire. So if you have 6 AWG wire and any devices like an outlet are rated at 50 amps or greater you are okay.
Why would a 30A-250V outlet still have power with breaker off?
It sounds like the breaker is unserviceable. Seeing as it supplies 240 volt outlet it must be a two pole breaker. If it is a single handle two pole breaker then one pole set inside the breaker is not disconnecting one of the lines. If it is supplied from two single pole breakers that has a common tie, the common tie might be loose and does not shut off both poles when thrown to the off position. If there is no common tie then both breakers must be turned off to interrupt the 240 volt supply.
The magnetic field of a magnet is strongest?
near both its poles
Can you connect a 2 pole load to 2 single pole breakers?
Yes, but the handles should be linked together so if only one breaker trips (phase to ground short) it will kill both poles of the circuit.
100amp breaker is 100amp on both phases or one phase?
A two pole breaker protects both L1 and L2 legs. An over current on either leg will trip the breaker.
how do you make a magnet with north poles at both ends and south poles in the middle?
You can’t.
How do i replace a car battery Mazda 323?
disconnect both poles, wait 5 minutes, lossen the bolt, replace your battery, tighten the bolt, connect both poles. here you go disconnect both poles, wait 5 minutes, lossen the bolt, replace your battery, tighten the bolt, connect both poles. here you go
How many degrees latitude is the equator from the poles?
The equator is 90 degrees of latitude from both poles.
Why are hollow electric poles preffered over solid poles?
They both weigh and cost less.
One of the 120 volt legs in the main breaker has lost power?
check power coming into the breaker if both leads are hot it's a bad breaker
Can you survive in both the north and south poles?
No.
Are north poles and south poles antipodal to each other?
Not necessarily - consider a horseshoe magnet for example, both N and S poles are close to each other. The N and S poles on the Earth are roughly opposite each other. Both poles wander somewhat, and the S pole is travelling NNE steadily at the moment.
