Roco 10797 Z21 Multi Loop Sweep Sanding Module, Various

The Z21 multi loop is a sweeping loop module that allows track figures such as sweeping loops, track triangles and turntables to operate comfortably and safely. Operating modes: short circuit detection – simplest wiring Sensor tracks – short circuit free detection track contacts – detection via circuit tracks or reed contacts Mixed operation – double safety Compatible with DCC MM RailCom analogue operation Note on sensor tracks/sections! Since sensor tracks/sections themselves are not powered, they must not be too long, especially in terms of short, slower locomotives. Ideally, they should be between 4.0 and 5.5 cm long in H0, in N 2.0 to 3.0 cm.