It uses a mechanical switch to engage the drive, instead of the more common pendant set-up. This is wired for 440VAC. No chain with this unit. The item "Chisholm-Moore 2-Ton Electric Chain Hoist 9 FPM 440VAC Made in USA" is in sale since Wednesday, May 27, 2020.This item is in the category "Business & Industrial\Material Handling\Hoists, Winches & Rigging\Cranes & Hoists\Chain Hoists". The seller is "fluffy*s_stuff" and is located in Emporium, Pennsylvania. This item can be shipped worldwide.