What is the difference between Contactor and Circuit
breaker ?
Answers were Sorted based on User's Feedback
Answer / vinayakamoorthy.k
The Circuit Breakers are will trip(Current Operated Device)when the current will goes over the limit(Current Rating).But the contactors are not going to trip.
Is This Answer Correct ? | 10 Yes | 3 No |
Answer / sumit patel
There are two main difference bet'n contactor and circuit braker
1) contactor is used for low voltage while CB is used for high voltage.
2) contactor only make contact between line and load.there is no tripping mechanism. while in CB is current operated device.which has a tripping mechanism.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / prakash rao
Contactor operates for low currents, whereas circuit breakers used for high currents.
Is This Answer Correct ? | 1 Yes | 0 No |
My above answer appears to be wrong.Contactors are for
closing circuit and are to be opened manually.Circuit
breaker has a tripping (opening) mechanism and may have
closing mechanism also.
Is This Answer Correct ? | 0 Yes | 1 No |
You can add that contactors are to be operated off-load only
Is This Answer Correct ? | 0 Yes | 1 No |
Opening and closing are done manually in case of contactors
and for cb it is electrical
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / sumit patel
contactor is used for low voltage while circuit braker is used for high voltage.
Is This Answer Correct ? | 2 Yes | 6 No |
Answer / vijay
CONTACTOR RICIEVE INPUT COMAND AND ELECTRIC OPERATING
CIRCUIT BREAKER IS OPERATING MANUVALLY
Is This Answer Correct ? | 0 Yes | 9 No |
Why is transformer a machine
What is the formula to find out the kvar required to improve the powerfactor from .85 to .99 at 1500kw, 415v.
what is the difference between single core,three core,three and half core and four core, and where it can be used ,
I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150 and 1600 KVA respectively. The total connected load 16809 KVA(11/0.433KV).how i calculate the max current & how i decided the CMD.
What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
what is difference between low voltage and high voltage
What is different between Regulator & Stabilizer?
if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?
What are the classification of Servo Motor?
Why let through energy not considered for ACB breaker while cable sizing?
i Have 1000kva 11/.4 kv voltemp make t/f Its a 2 year old. i wants to known how much iron losses & copper loses during no load condition.
why one pin of plug pin is longer than other two? In some mobile chargers one pin is made not conducting .Why?