DaierTek UP Down Momentary Reverse Polarity Switch 12V 30A DPDT Polarity Reversing Switch RV Power Jack Switch for 5th Wheel DaierTek UP Down Momentary Reverse Polarity Switch 12V 30A DPDT Polarity Reversing Switch RV Power Jack Switch for 5th Wheel Tongue Trailer Stabilizer About this item Polarity Reversing - This 3 way dpdt switch is polarity reversing switch, with two jump bar to help you easily reverse the direction of current by pressing the switch to different position, do not need to make any changes on the wiring. UP DOWN Momentary - This reverse polarity switch 12v is "UP DOWN" printed momentary ON/OFF/ON rocker switch, you need to press and hold the button to make the switch stay ON, and the switch will return to OFF position when you release the button. Rating - This dpdt momentary switch is rated 30A 12V DC; 15A 250V AC, can be both dc and ac use, is suitable for rv jack, dc motor, etc. Mounting Plate - This 12v polarity reversing switch will come with a mounting plate to make it adapt different hole size. The mounting hole size for this momentary rocker switch is 37.4x21MM (0.83x1.47"), and the distance between the screw hole of the mounting panel is 30x48MM (1.18x1.89"). With Terminal Connetor - This rv jack switch will come with 4 terminal connector to make it easy to install wires, you can choose suitable gauge wires by your own to install for this heavy duty tongue jack switch. _x000D_ _x000D_