Relays

Question 1

What is a relay?

Answer 1

A device that can control multiple circuits at a variety of voltages

Question 2

Where are relays extensively used?

Answer 2

In industrial assembly lines, machine tool control, and commercial equipment

Question 3

What are the typical coil ratings for a relay?

Answer 3

12v, 24v, 32v, 48v, 120v, and 240v

Question 4

What is the typical contact amp rating?

Answer 4

0-.5 amps, 0-10 amps, and 0-25 amps

Question 5

What are the types of relays?

Answer 5

EMR- Electromagnetic Relay
SSR- Solid State Relay

Question 6

How are EMRs activated?

Answer 6

They are activated by some type of magnetic effect

Question 7

What are the three classifications of EMRs?

Answer 7

Reed Relay
General Purpose Relay
Machine Control Relay

Question 8

How can the contacts of a reed relay operate?

Answer 8

They can operate off of a permanent magnetic or D.C electromagnetic

Question 9

What is a general purpose relay also referred to as?

Answer 9

Ice cube relay