Lewmar ICU Blue Box System Assembly - TT GEN2The Lewmar blue box system is the new design of ICU in our next-generation thruster system.The main electronic components of the system have been completely redesigned to increase reliability and functionality.
The configuration has been designed to be as simple and reliable as possible while incorporating today’s technological trends.The blue box system is used on all Gen 2 thrusters from 110 to 300TT.
Health-check LED and on-board fuse
Powers and provides logic for panel controller
Phoenix contact for power and neutral
One ICU per thruster
Compatible with ABS and power switches | 
