Missed a very important thing about the differences when saying that "Relays can be either NC or NO depending on the type, where contactors give you 3 sets of NO contacts". But you jumped one of the most important bullet points; Auxilary Contacts. This means that Auxilary blocks can be mounted onto the contactor, some models on the front whilst other on the side, this will give you multiple functions as in NC & NO contacts.
Hi thanks for the great video. I was just wondering. Can you put just two hot wires from a two pole fuse holder to a three pole overload relay (ex. L1✓ L2✓ L3×)?? Thanks again
some addition. Most relays have single break contact. Most contactors have main and auxilliary contact as Double Break contact. Double break contacts reduce arcing at contact while making or breaking. Speed of closing of Contactor contact is very high as compared to relays, there by reducing arcing time while making or breaking. So contactors can carry higher current. Contactors have Main contacts as Normally Open mostly and auxilliary contacts as NC or NO or Borth. While relays mostly have Change over contacts. Power contactors ( contactors with high current ratings ) contacts can be replacable or servicable. Power contactors may have arc chutes to extinguish the arc.
Thanks for a nice concise video! Question: What temperature extremes can contactors withstand for very harsh environments? For example -70C to +85C? How about environments with high levels of shock and vibration, as in a HUMVEE? Thanks, Peter
YOU can however it will wear out since at start it will draw 4-6 x the Fla ( ballpark avg), could be more depending upon the code letter, it may burn the relay out in short order or may last a while.....too many variables to just say yes or no...but at 5 amps Fla, and a 15 or 20 amp relay it would most likely work but may not be the best setup for longevity, efficiency and efficacy
Hello sir , i am also from electrical backgroud, i want to explore my knowledge in control panel and PLC programming , i wanted to work with your company ..
very clear and professional video. thanks for this information.
relays go click. contactors go clunk.
Yes! You're right.
lol
Missed a very important thing about the differences when saying that "Relays can be either NC or NO depending on the type, where contactors give you 3 sets of NO contacts". But you jumped one of the most important bullet points; Auxilary Contacts. This means that Auxilary blocks can be mounted onto the contactor, some models on the front whilst other on the side, this will give you multiple functions as in NC & NO contacts.
These videos are great.
Hi thanks for the great video. I was just wondering. Can you put just two hot wires from a two pole fuse holder to a three pole overload relay (ex. L1✓ L2✓ L3×)??
Thanks again
some addition.
Most relays have single break contact. Most contactors have main and auxilliary contact as Double Break contact. Double break contacts reduce arcing at contact while making or breaking. Speed of closing of Contactor contact is very high as compared to relays, there by reducing arcing time while making or breaking. So contactors can carry higher current. Contactors have Main contacts as Normally Open mostly and auxilliary contacts as NC or NO or Borth. While relays mostly have Change over contacts. Power contactors ( contactors with high current ratings ) contacts can be replacable or servicable. Power contactors may have arc chutes to extinguish the arc.
Thanks for a nice concise video! Question: What temperature extremes can contactors withstand for very harsh environments? For example -70C to +85C? How about environments with high levels of shock and vibration, as in a HUMVEE? Thanks, Peter
Great video. THank you.
We have relays using for substation to control or isolate high voltage equipment... please note this can be happens with CT and PT
The thunder gods themselves wet their pants every time a contactor switches 12500 amps
nothing mentioned about activation voltages AC vs DC etc
How is fly back from the coil handled ?
Can we use 24Vac contactor coil with 12V dc supply??
No
What about a solenoid?? What's the difference with that?
How to calculate the resistor and capacitor valve(Snubber Circuit) that we connect across coil of contactors (A1 and A2)
Nice sir
thank you for your contribution
Can we use t shape 30A relay for controlling 1hp water pump or should I use contractors
Hi
Of course You have to use a contactor
That was very helpful
Thank you! We appreciate you watching.
Thank you
Thanks
In control panel, which one gives on and off status
Pls reply
Another difference is auto correct constantly tries to correct contractor... see what I mean.
Can i use a relay(5 amps) to power my 0.33 hp motor /1 phase ?sir plz let me know
YOU can however it will wear out since at start it will draw 4-6 x the Fla ( ballpark avg), could be more depending upon the code letter, it may burn the relay out in short order or may last a while.....too many variables to just say yes or no...but at 5 amps Fla, and a 15 or 20 amp relay it would most likely work but may not be the best setup for longevity, efficiency and efficacy
Should be explained with animation. Easy to understand.
You being dumb is your fault
Hello sir , i am also from electrical backgroud, i want to explore my knowledge in control panel and PLC programming , i wanted to work with your company ..
Plz define and explain contactor for me on comments
Really. New world do not use rellay s any more.
And no no no. Please.
Wtf
Please go for real training
I find the discussion describing something as normal is very judgemental,
Thank you