what relay do i need

Hi,

 I am going to fit power windows into a nissan micra 1999 useing 4 relays 2 for each window i have found the wireing information i need on this site i just need to know what relays to use spst or spdt.

This is how i am going to wire them:

            

 Thankyou all for any advice you can give me.

spdt

spdt sp stands for single pole refering to the pole 30 in your case and the dt stands for double throw which refers to poles 87 & 87a. its a double throw because only one of the throws are use at any given time. it throws one way (87) and then the other(87a,) when the coil circuit (85 &86) loses power or ground. a similar relay rated as a spst (single pole single throw) would have only an 87 (if it was considered a N.O. (normally open)) or an 87a ( "a" refering to "at rest" making it a N.C. (normally closed)) terminal. make sure you used a relay that can handle about 30 amps and you shouldnt have any relay failure problems. always carry an extra relay or two in the car in case you have a problem while one the road. have you considered using a 530t dei window module instead? for longer term reliability, dont ground the relays to the door.. ground them to the body.yuk

quiet rural missouri, near KC.

If your system moves you physically and not emotionally, you have wasted your money.

Use a DEI 530t with your switches, not the relays.It will give you the option of one-touch up and down for both windows. or get proper 5 wire switches from Spal, then NO relays required.

Thankyou for replies.

Where can i get a DEI 530t from and how much are they ?

 if i use 5 wire switches what grade wire do i need to use how much are they where do i get them from ?

 i need to do this as cheaply as i can.

Probably £40-60 on ebay or a car alarm dealer. 1.5-2mm is all you need, windows will draw about 10 amps each. what windows are you installing? From a breakers or a kit Google Spal for switches.

That switch is fine, good price, there should be two motor wires though, their spec is wrong!

Hi,

Thankyou for your prompt reply howie II i have zoomed in on the picture of the switch and there are 6 wires so i think that where it states blue/green in the specs it means 1 blue wire + 1 green wire  not 1 blue,green wire  if this is correct am i right in thinking this switch is fine for what i want to do ?.

Thankyou again for all your help.

yes, absolutely OK.

Thankyou all for your replies i have now got 2 switches that let me do away with relays i hope to get them fitted in the next couple of weeks.