What is the difference b/w relay and contactor?

3 Answers  

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ANY ONE USED/INTERFACED CITECT VERSION 6.0/1 OR 7.0/1 TO SIEMENS S7-300 OR S7-400 CONTROLLER IF PLEASE TELL ME THE COMMUNICATION STRUCTURE AND ADDRESS CONSIDERATION FOR DI,DO,AI,AO please mail the details lok_pallapolu@yahoo.com Ph:09247513753 hyderabad

0 Answers  

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Difine the process you would establish to monitor the effectiveness of an emergency evacuation system

0 Answers  

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Can we Use AC Servo Motor with Variable Frequency drive instead of Servo Drive? OR with VFD, only simple induction motor can be connected? VFD (Variable Frequency Drive)is having facility of Encoder Feedback.

0 Answers  

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how to differentiate a mpcb,mcb with contactors via working principle Explain the working principle of MPCB,MCB & Contactors

1 Answers  

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how can LED bulb indication work correctly without CT OR PT for 3 phase indication if one is cut then it will show the correct indication?

0 Answers   UltraTech,

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What is load line in control valve?

0 Answers   KEC, NJPC,

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if salary paid per month rs. 16000/- of female <65 i will deduct tds from his salary please what i will do explain?

0 Answers  

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Sir, we are manufacturer of splitter machine. we joint two knifes with welding electrode, BEST ARC, and ADOR, Grade E6013. but the time of welding the welded area comes to wear, what meterial(Electrode)is suitableto our requirement.this knife is press with Hydraulic operation.

0 Answers  

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about generator

5 Answers   Bhel,

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What are the problems involved with queuing theory?

0 Answers  

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What is the formula for converting litre in to pale?

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