Generac Auxiliary Shutdown KitFor use with Generac air-cooled and liquid-cooled generatorsMeets 2017 NEC - 445.18 - Disconnecting Means & Shutdown Of Prime MoverAllows your generator to be code compliantCompatibility:9kW - 22kW Guardian Series15kW EcoGen20kW Synergy20kW Three-Phase22kw - 60kW Protector Gas15kW - 50kW Protector DieselPlease See Air-Cooled or Liquid-Cooled Instruction Sheet For Additional InformationList of States that will adopt the NEC 445-18 Code by end of 2017AR, CO, CT, GA, ID, IA, KY, ME, MA, MI, MN, NE, NH, NM, NC, ND, OH, OR, RI, SD, TX, VT, WA, WI, WYPlease check with your local AHJ (Authority Having Jurisdiction) to see if this is required to meet code