Siemens General Duty Safety Switches are intended for applications where reliable performance and continuity of service are needed, but where duty requirements are not severe and usual service conditions prevail. These switches are intended for use primarily with supply circuits rated 240V AC or less where the available fault current is less than 100, 000A when used with Class R or T fuses, or 10, 000A max when used with Class H fuses. All switches are provided with imbedded "ON" and "OFF" indicators and padlocking provisions on the handle and door. All switches are UL listed. Fuses not included on fusible device. Use HA type hubs if required.