- Building Wiring Fault Indicator - This LED informs users of potentially dangerous wiring problems in the wall circuit. 
 
 
- Catastrophic Event Protection - SurgeArrest
 components such as MOVs and Thermal fuse ensure instantaneous reaction 
to lightning strikes and wiring faults. If the surge components are 
damaged due to power spike or over voltage, excess power cannot reach 
your equipment. Unlike the APC SurgeArrest products, most surge 
suppressors continue to let power through even after circuits have been 
damaged, leaving your equipment exposed to other damaging surges. 
- Fail Safe Mode - Most
 other surge suppressors continue to let power through even after their 
circuits have been damaged, leaving your equipment exposed to future 
surges. APC's SurgeArrest fail safe, which means that once the circuit 
of an APC SurgeArrest has been compromised the unit disconnects 
equipment from the power supply ensuring that no damaging surges reach 
your equipment. 
- Protection Working Indicator - SurgeArrest
 will warn you if its circuitry has been damaged by heavy strike or 
power line surge and it is unable to provide 100% protection. If still 
under warranty, APC will then replace your damaged SurgeArrest free of 
charge. 
- Protection Working Indicator - SurgeArrest
 will warn you if its circuitry has been damaged by heavy strike or 
power line surge and it is unable to provide 100% protection. If still 
under warranty, APC will then replace your damaged SurgeArrest free of 
charge. 
 
 
- Fail Safe Mode - Most
 other surge suppressors continue to let power through even after their 
circuits have been damaged, leaving your equipment exposed to future 
surges. APC's SurgeArrest fail safe, which means that once the circuit 
of an APC SurgeArrest has been compromised the unit disconnects 
equipment from the power supply ensuring that no damaging surges reach 
your equipment. 
- Resettable circuit breaker - Easy recovery from overloads; no need to replace a fuse. 
- Data-line Protection - Protection
 of data lines (Ethernet, Coaxial and Phone lines) ensures complete 
protection of your equipment from surges. It is very important to 
protect your equipment from “back door” electric surges traveling 
through data lines, as they can be as damaging to your equipment as 
surges traveling over power lines. 
- Lightning and Surge Protection - To prevent damage to your equipment from electric power surges and spikes.