how to make 8 pin relay using two 5 pin relays

[vantyg619]

hey there

i wan to know if a 8 pin relay can be made with two 5 pin relays. i kind of know how to make one but have serious doubts about the numbering of pins. can anybody help me.

thanks

 

[hamed8419215]

Could you explain more?

 

[vantyg619]

i am making a project which requires the use of 12 V 8 pin relays.
now 8 pin relays are bit expensive and i want to buy them only as last resort.
so i got an idea that one 8 pin relay can be made using two 5 pin relays by joining some pins.

the problem is i am not sure about the numbering of so formed 8 pin relay. i do not want to mess up my project over my creative thoughts so i need help.

 

[hamed8419215]

How many contact you need in your project?

 

[alexan_e]

What is the expected output of an 8pin relay, which pins are supposed to connect and how many states will you have?
Does the 8pin relay have 4 switches (2 pin each) or is it something different.

Alex

 

[vinoth8051]

Hi vantyg619

I am guessing that you wish to convert SPDT Relay to DPDT Relay.
SPDT Relay : Two pins for coil, one Pole and two Throw ( totally 5 pins)
DPDT Relay : Two pins for coil, two Pole and two sets of two Throw (totally 6 pins). Kindly look at the diagram..


To convert SPDT to DPDT Relay... you have to actuate to coils of SPDT Relays together...
Hope this helps...

 

[FvM]

If "5 pin" means SPDT and "8 pin" DPDT, then two relays will do.