Siemens DTNFC365R Heavy Duty Non-Fusible Safety Switch, 600 VAC/250 VDC, 400 A, TPDT Contact Form, 3 Pole

Double throw switches are intended to transfer loads from one power source to another. All 2 and 3-pole double throw switches are CSA certified and both horsepower and load break rated. Switches are rated for use on systems up to 10000 A when protected with class H fuses or 200000 A when protected with class R or class T fusesb. They can also be used to connect a single source of power to either of two loads. In this application it is necessary to field modify fusible switches so that the fuses are on the load side of the switching mechanism.