Basic Electrical Lesson 4 is about relays and contactors.

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Table of Contents:

00:00 - Basic Electrical
00:22 - Relays
00:37 - The relay coil
01:51 - The contacts
02:06 - Relay contacts
02:21 - Normally Open Contacts
02:45 - Normally closed contacts
03:09 - Contact ratings
03:30 - Contact ratings
03:41 - Contact ratings
04:17 - Sequence of operation
04:29 - Sequence of a MARS relay
04:49 - Sequence of a MARS relay
04:56 - Schematic Symbols of a relay
05:06 - Relays
05:14 - Relays - Example 1
05:39 - Relays - Example 1
05:55 - Relays - Example 1
06:15 - Relays - Example 1
06:15 - Relays - Example 2
06:43 - Relays - Example 2
07:03 - MARS Relay
07:19 - MARS Relay
07:21 - MARS Relay - Normally Open
07:24 - MARS Relay - Normally Closed
07:25 - MARS Relay - Normally Open
07:25 - MARS Relay
08:45 - MARS Relay - Normally Open
08:47 - MARS Relay - Normally Closed
08:48 - Mars Relay - Schematic
09:00 - Contactors
09:26 - Contactors
09:43 - Contactor
09:44 - Contactor
09:45 - Contactor - Schematic
09:51 - Contactor - Schematic
09:53 - Troubleshooting contactors and relays
10:05 - Troubleshooting contactors and relays
10:51 - Troubleshooting contactors and relays
10:56 - Troubleshooting contactors and relays
11:03 - Troubleshooting contactors and relays
11:09 - Troubleshooting contactors and relays
11:11 - Troubleshooting contactors and relays
11:19 - Troubleshooting contactors and relays
11:21 - Troubleshooting contactors and relays
11:27 - Troubleshooting contactors and relays
11:36 - Troubleshooting contactors and relays
11:42 - Troubleshooting contactors and relays
11:48 - Troubleshooting contactors and relays
11:54 - Troubleshooting contactors and relays
11:55 - Troubleshooting contactors and relays
12:01 - Troubleshooting contactors and relays
12:09 - Troubleshooting contactors and relays
12:12 - Troubleshooting contactors and relays
12:15 - Troubleshooting contactors and relays
12:16 - Troubleshooting contactors and relays
12:33 - Troubleshooting contactors and relays
12:51 - Troubleshooting contactors and relays
13:06 - Shop projects
13:11 - Shop projects
13:27 - Shop projects
13:30 - Shop projects