CAM SWITCH, 40A, O-P-B,10-240-20-480 Hotsy Pacific Sale! from $314.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. CAM SWITCH - 3-POSITION - MACHINE CONTROL Heavy-Duty Rotary Cam Switches Legend plate reads off / pump / burner Quick make / break action reduces arcing Wiring Boot Included (Except 410242-3) Legend Plate, 2/1/2" Square 4-Screw Mounting 40AMP, 480V, 3PH