With two single-pole switches and one double-throw switch for various circuits. Unit can perform a wide variety of tasks automatically (up to 3 functions simultaneously). Operating current 10 volts. Double solenoid mechanism.

Charlie's tips:

• Can be activated with a circuit track, as well as a switch (like the 72720).
• Double throw can be used for a signal (red-green).
• Single throw for supplying track power to stop track section.