Unused Siemens Sirus soft start / control voltage is 110v ac but through use of relays / transformers, can be controlled from any existing switched control circuit. The model number is 3RW4425-1BC34 should you wish to look up the details. If you have any questions then feel free to contact me.The item "Siemens sirus Softstarter / softstart / soft starter 3RW44251BC34" is in sale since Saturday, May 11, 2019. This item is in the category "Business, Office & Industrial\Industrial Automation & Motion Controls\Drives & Starters\Drives & Motor Controls\Other Motor Controls". The seller is "bobbieslandy" and is located in Chelmsford. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Norway, Indonesia, Malaysia, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Qatar, Trinidad and tobago, Uruguay, Philippines.