February 24, 2012 – MTL Instruments, a unit of Cooper Crouse-Hinds, has introduced ZoneMaster Pro Type 1 and ZoneSentinel Type 1 models allowing users to install UL1449 3rd Edition listed surge protection before or after the main building disconnect. Well-suited for all types of switchgear, the ZoneMaster Pro Type 1 offers versatility and flexibility while the ZoneSentinel, ideal for distribution boards and small service entrance locations, provides both cost-effective and premium surge protection, it says.

MTL INSTRUMENTS