DPDT...

[darrenw6000]

Is there a difference between the DPDT ON-ON-ON and the ON-OFF-ON or are they the same

[m-Kresol]

There is a difference for sure.

a On-Off-On will connect the centre lugs with either side in the On position, but will connect to neither when Off.
A On-On-On switch is often a A-Z-B switch meaning that in A and B it will connect the centre lugs to side A or B. In Z (centre position) it connects one middle lug to side A and the other middle lug to side B.
I'm not sure but I think there are different versions.

the pic below is actually missing pins in the ON-ON-ON graphic. should be 6 pins to and the centre pins are usually not connected, iirc.

[darrenw6000]

i see, thank you

[Drew Hallenbeck]

http://www.bitcheslovemyswitches.com/#!/DPDT-ON-ON-ON-TOGGLE/p/36073610/category=5324038

Just for a little extra clarity.
Also a great place to order stuff!