Siemens HF362N 60-Amp 3 Pole 600-volt 4 Wire Fused Heavy Duty Safety Switches This is a 60 Amp, 3 Pole, 600v, 4 Wire, Fused HD, Type 1 Quick-make, quick-break operating mechanism that ensures positive operation Arc chutes dissipate heat and prolong switch life Hinged clear line terminal shield with probe holes for inspecting or testing line side terminals