Bosch 87a Relay

[burner42]

hey guys, anyone have a diagram of how it looks? in terms of pin layout that is, i need one for the alarm installation, can't seem to find any around for some stupid reason.

[ECU-MAN]

I found this on google,

http://www.bcae1.com/relays.htm

[burner42]

cheers mate, it's very useful, however i'm looking for a bosch remote start relay part number as the rep was asking for one, he wanted me to be specific. :(

[PaulsTeg]

Can you be a little more specific with what you need? A remote start relay is a bit of a lose definition (although the application is specific). Is it a standard single or double contact, high or low current etc. What is controlling the remote start? Does this relay control the starter motor solenoid directly?

[02gzm]

A bosch 87a relay would just be your standard 5 pin, 12v, mini relay.
http://www.holden.co.uk/getImage2008.asp?path=e%3A%5Cdomains%5Choldenvc%5C www%5Cproductimages%5C080%5F805%2Ejpg&WorH=w&max=300
The 87a pin is the centre pin.

You'll need to know what amperage is needed and if it's a change-over or normally open relay though.

Change-over relays obviously switch between 2 circuits depending on the amperage passing through.

Normally open 5 pin relays will be open with no current running through them and power 2 circuits when current is run through them.

As an example your central locking will most likely use a normally open relay to unlock all the doors by just using 1 circuit from the control box. Power will be sent to the relay and the doors will both lock. Once power is cut off the doors will unlock (providing the battery isn't dead and there is enough power to move the actuators). Alarms continuously draw a very smally amount of power when activated to keep the circuit closed and doors locked. This is why they can drain a car battery if left for a few months without the alternator recharging it.

[burner42]

A bosch 87a relay would just be your standard 5 pin, 12v, mini relay.
http://www.holden.co.uk/getImage2008.asp?path=e%3A%5Cdomains%5Choldenvc%5C www%5Cproductimages%5C080%5F805%2Ejpg&WorH=w&max=300
The 87a pin is the centre pin.

You'll need to know what amperage is needed and if it's a change-over or normally open relay though.

Change-over relays obviously switch between 2 circuits depending on the amperage passing through.

Normally open 5 pin relays will be open with no current running through them and power 2 circuits when current is run through them.

As an example your central locking will most likely use a normally open relay to unlock all the doors by just using 1 circuit from the control box. Power will be sent to the relay and the doors will both lock. Once power is cut off the doors will unlock (providing the battery isn't dead and there is enough power to move the actuators). Alarms continuously draw a very smally amount of power when activated to keep the circuit closed and doors locked. This is why they can drain a car battery if left for a few months without the alternator recharging it.

cheers mate, that's really helpful

[02gzm]

no problem