Whole-House Lightning Arrester/Surge Suppressor - Our Lightning Arrestor Surge Protector protects numerous home and office applications.Whole-House Lightning Arrester/Surge Suppressor features include: Installs at electrical disconnect or panel to protect Pumps, Motors, HVAC Condensers Incoming Utility Power for Residential Light Commercial Applications Hardwire Parallel Connection Unlimited (Parallel Installation) Continuous Current Hardwire parallel connection Unlimited (Parallel Installation) continuous current Response Time: lt;1 nSec component level Automatic Reset to Protect against Multiple Surge Events Surge Current Rating: 75,000A Short Circuit Current Rating: 10,000A MCOV: 130 VAC (L - G), 260 VAC (L - L) 940 Joules AC protection Modes: 900V L - L amp; 500V L - G Protection Type: SPD Type 2 Operating Frequency: 0 - 400 Hz Service Voltage: 120/240 VAC (2w+G)Single Phase Lightning Surge Arrestor has Black high impact plastic housing Housing size: 3 x 2.25 x .75 Indicator light for surge protection, grounding and power status cULus Listed UL 1449, 3rd Edition; ANSI/IEEE C62.11 Order Qty of 1 = 1 Piece Below is more info on our Whole-House Lightning Arrester/Surge Suppressor