WEBVTT

00:00.000 --> 00:09.980
The 12 VDC (continuous) car relay typically provides a non-polarized coil

00:09.980 --> 00:17.633
I connected the continuity tester in parallel to the relay T contact (NO)

00:17.633 --> 00:28.048
When I feed the coil in + to the right (already connected to - to the left), the contact closes

00:28.048 --> 00:40.645
On a car, what is the purpose of the relay since everything works in 12 Volts continuous!

00:40.645 --> 00:58.564
We will control the consumption of the coil (control)

00:58.564 --> 01:14.827
Thus, a relay capable of switching 10 Amps and more, controls with 0.04 A only

01:14.827 --> 01:26.807
It allows to control the power (injection, ignition) with the signal of the computer ...

01:26.807 --> 01:40.092
The relay manufacturers are waterproof when clipped in order to limit the bad contacts

01:40.092 --> 01:52.872
The coil sticks under 12 V for 0.15 A

01:52.872 --> 02:06.140
It has 5 RT Rest / work (inverters) of which 2 accessible above

02:06.140 --> 02:15.907
The contactor calls NO Normally Open the equivalent of the work for the relay

02:15.907 --> 02:30.406
On a normally open NC contact NC or NC Closed

02:30.406 --> 02:44.601
Here 5 RT contacts are mechanically integral

02:44.601 --> 02:54.499
But the power circuits 6, counting the control coil are isolated

02:54.499 --> 03:02.577
Galvanic insulation, electrical separation of circuits is the basis of relays, contactors

03:02.577 --> 03:20.589
We work safely in 12 Volts and go looking for rest and work

03:20.589 --> 03:35.644
At random, I just spotted the NO: fueled I have continuity between red and yellow!

03:35.644 --> 03:46.112
Remain to find the common, left part here on the reverser!

03:46.112 --> 03:58.583
Green and red: no continuity, so no contact rest!

03:58.583 --> 04:10.142
I am therefore between the terminals rest and work: never passantes we saw it (other video)

04:10.142 --> 04:29.171
Rest between green and yellow! The common is in yellow, work in red, rest in green!

04:29.171 --> 04:40.800
The lamp connected at rest is illuminated at 24 VDC, the coil at rest (12 VDC)

04:40.800 --> 04:55.746
Rest and work viewed on 2 different bulbs!

04:55.746 --> 05:01.846
Bêtisier: You see it sounds :-) Hear forgiveness!