Eaton's Type 1 Surge Protective Device products are UL1449 3rd Edition listed and provide the highest level of surge protection and safety. Type 1 surge products are permanently connected devices that are installed before or after a main disconnect. These devices can be used as replacements for what were previously known as secondary surge arrestors or lightning arrestors.Applications Include: Loadcenters/Electrical Panels. Residential Service Entrances. Sump & Irrigation Pumps. Control Cabinets. Individual Equipment Disconnects. Single & Three Phase Motors. Outdoor Lighting. Garages. Farm / Irrigation Control. Other Electrical Assemblies. Eaton's Type 1 Surge Protective Devices: Protect Single Split-Phase and Three-Phase WYE configurations. Meet the industry's highest Nominal Discharge Current and Short Circuit Current ratings available. Provide superior protection for sensitive electronics with low Voltage Protection Rating values. Offer a 2 Year Product Warranty Features: Commercial grade AC power protection for sensitive electronics. Clear, visible LED indication displays protective status of device. Can be applied universally to any manufacturer's equipment. Optional accessory kit enables wall or din-rail mounting. Suitable for indoor/outdoor applications.