Siemens HNF363 100 Amp Indoor, Non-Fusible, 600V, Heavy Duty Safety Switch 3 PoleSiemens HNF363 HNF363 Product Description Siemens Low Voltage Circuit Protection Heavy Duty Safety Switch. 3 Pole Non Fused in a type 1 enclosure (indoor). Rated 600VAC (100A). Features: Quick make, Quick break operating mechanism that ensures positive operationVisible blade, Double break Switching actionArc chutes dissipate heat and prolong switch lifeHighly visible red handle grip, Designed for hook stick operationDefeatable dual cover