If you are using ground throws you will need to make it a two step process. Amazons choice for reverse polarity switch industec wired 20 amp 12v dc motor polarity reversing rocker momentary automatic reset switch 49 out of 5 stars 35.
Amazon Com Industec Dc Motor Polarity Reversing Momentary
Automatic polarity reversing switch. The toggle switch will reverse the polarity of the rails in the reversing section once the train is in the loop. If you are using a snap motor you can use a switch with two more poles to reverse the polarity when you activate the turnout. Use one digitrax booster set for automatic reversing and another set for normal operation. You need to decide if you want to purchase a switch or salvage one from something else. When this happens the train will also reverse direction. Gama electronics 30 amp toggle switch 3 position polarity reversing dc motor control momentary.
Enjoy and leave me. As you can see every time a train travels around the reversing loop the track polarity must be changed and the track switch must be set. To keep the train moving forward you must also change the direction on the throttle. Wiring for this switch is deadly simple. If we changed the polarity of the loop power while the train is in the loop the train would suddenly change direction. Industec toggle switch 3 position polarity reversing dc motor control maintained 12v 250 quick connect 6 pin double pole double throw spade plug wwires 50 out of 5 stars 2 1480 14.
Industec toggle switch 3 position polarity reversing dc motor control maintained 12v 250 quick connect 6 pin double pole double throw spade plug wwires 50 out of 5 stars 2 1480 14. Get it as soon as tue jul 21. If you throw both switches simultaneously you can do both while the train is in motion. A dpdt switch to reverse the polarity in the loop and then throw the ground throw. 49 out of 5 stars 35. Simple polarity reversing switch step 1.
Industec wired 20 amp 12v dc motor polarity reversing rocker momentary automatic reset switch. Automatic polarity reverser units are possible with dcc due to the highconstant voltage on the rails. 45 out of 5 stars 100. However all is not necessarily lost. Therefor we must change the main track polarity while the train is on the loop track. Analog does not maintain a constant on rail voltage varying voltage level being the inherent speed control and therefore cannot do auto polarity switching.
To make my instructions a little more easy to. Use a double pole double throw switch to manually allow for reversing.
Gallery of Automatic Polarity Reversing Switch
