THIS IS A 50 HERTZ MODEL NEW IN BOX ( I also have these in other various voltages, amps and single phase, please ask) onan p/n 307-2408 TELEMECANIQUE ONAN AUTOMATIC TRANSFER SWITCH CONTACTOR ASSEMBLY MOTOR STARTER CONTACTER MC-0-274-125 100 AMP 3 PHASE 3 WIRE 120 VOLT AC 3 POLE WEIGHS 45 POUNDS IN THE BOX I USUALLY HAVE MORE STOCK OF ALL MY ITEMS AND CAN SAVE YOU MONEY IF YOU ARE INTERESTED IN LARGER QUANTITY PURCHASES. I AM ALSO GLAD TO SELL YOU A SPARE IF THAT IS ALL YOU NEED. Winner pays CALCULATED shipping and handling anywhere in USA . Other countries must contact me for a postage quote. I am not an expert concerning much of what I sell. Please send Onan part numbers when inquiring about certain parts or the Onan model and spec #. Please look at my other items in my STORE and add me to your favorites list. Click on See all Categories for additional products. Cheers, Mike