The 7810K1 is a double-pole double-throw heavy-duty hesitation Toggle Switch with brass screw termination, On-None-On operation, square lever and flush mounting panel tabs. The most common application for heavy-duty hesitation is to help prevent motor damage resulting from the high current generation by counter EMF of the armature at the time of reversing. This type of device is referred to as an anti-plugging, hesitation, positive stop or positive off switch. Typical applications include bench tools, coach and truck (electric lift) and X-ray equipment.