Surge Protection

What does a "UL 1449" rating mean?

Surge Protectors manufactured after February 1998 that are listed under UL 1449 must meet more demanding standards. The new requirements include: Thermal fuse protection, catastrophic overvoltage protection, ability to survive higher transient currents, and protection against shocks after the device fails. Look for a label that states "Listed TVSS" or marked as "Transient Voltage Surge Suppressor."