Roco Z21 multi Loop

The Z21 Multi Loop is a reverse loop module that allows for the comfortable and safe operation of track formations such as reverse loops, triangular junctions, and turntables.

Operating modes:

• Short circuit detection – simplest wiring
• Sensor tracks – short circuit-free detection
• Track contacts – detection via switching tracks or reed contacts
• Mixed operation – double safety

Compatible with DCC, MM, RailCom, and analog operation.

Note on sensor tracks/sections: Since sensor tracks/sections are not powered themselves, they should not be too long, especially for short, slower locomotives. Ideally, they should be between 4.0 and 5.5 cm long in H0 scale, and between 2.0 and 3.0 cm in N scale.