Marshall Wolf Automation AC drives, variable frequency drive, AC Tech, Idec, Schmersal, TECO, Hitachi, Delta drives, light towers, solid state relays, crydom, Patlite, Autonics, 22mm indicator lights Authorized industrial automation distributor with amazing customer service, in-house tech support and great pricing. Easy online ordering and same day shipping from stock! Online orders over $100 qualify for free shipping. We stock everything from AC drives, LED stack lights, power supplies and push buttons to motors, sensors and relays. Our brands include AC Tech Lenze, TECO, Fuji, Idec, Patlite, Noark, Hitachi, Weg, Pepperl+Fuchs and more.