HO & N Snap Relay Atlas Trains

FEATURES: A double-pole, double-throw electrical switch actuated by a remotely controllable twin-coil, momentary power electromagnet. It can do all sorts of useful jobs on your layout, some of which are: Power the frogs on Mark 2 Turnouts to eliminate the short ""dead spot"" and prevent stalling of short-wheel-based locos. Power trackside signal lamps to show switch point settings. Feed control panel lamps to show points setting of remotely located turnouts. Selective power control for dead-end sidings with all Atlas turnouts: Mark 2