From professionals – to professionals. Our goal is to enhance and improve our portfolio to meet customer needs and market potential.

Over the years, Nortroll has established a very strong brand. Our three recognised product lines are listed to the right.


Fault Passage Indicators to locate short circuit and earth faults.


Fault current indicators for the underground medium voltage distribution network (6-36kV).


A modular system with different building-blocks allowing the utilities to tailor-make a system.


Norwegian coming soon...


ComTroll 333 ICU

(Indicator Communication Unit) communicates with the NetTroll micro SCADA system through SMS.

The unit can be used as a general communication module for NorTroll's fault passage indicators as well as third parties equipment though its 8 digital inputs, 4 analogs and 4 relay outputs. (8 relays optional). The units also have a serial port for serial connection to third parties equipment. (EIA 485)

The ComTroll 333 ICU is especially suitable together with the ComTroll 115C QuickLink Collector. ComTroll 115C communicates with up to 9 LineTroll 110EμR phase –mounted fault passage indicator with a 2.4GHz radio link.


We offer professional help in setting up a system that will help you reach your goals in a cost efficient way.


We have distributors in over 40 countries. Click the map for contact information.

Design & development: CATCH