MRServo is a reliable, economical, low-profile switch motor for your layout.
MRServo-1: Basic slow motion turnout drive without auxiliary contacts
MRServo-2: Includes two accessory contacts that switch with turnout position (DPDT)
MRServo-3: Includes one accessory contact (SPDT) and one PowerFrog contact
PowerFrog technology provides a reliable, short-proof way to route power to solid frog turnouts. (Examples: handlaid, Peco Electrofrog™, Shinohara™, and Walthers™ models.) These turnouts will create a short if the points make contact with the opposing rail before the contacts driving the frog switch polarity. Traditionally, the solution has been to add additional gaps in the point rails, isolating just the frog. With PowerFrog, this is no longer necessary. When MRServo starts to throw the points, it momentarily isolates the frog. Once the servo completes throwing the points, it sets the direction relay to the correct polarity and, after a small delay, re-energizes the frog.