The Intermatic AG3000 AC surge protector features three modes of protection and is recommended for residential and light commercial applications. It is intended for installation on 120/240 volt HVAC panels. The AG3000 incorporates the newest developments in TPMOV technology and provides individual component thermal protection and monitoring. The green LED indicator lets you know that your HVAC is protected. The AG Series of surge protective devices are designed for a variety of Type 1 and Type 2 applications. Type 1 applications include outdoor installations before service entrances and utility meter cabinets. Type 2 applications include installations after service entrances. The AG3000 surge protector comes with a limited 3-year, $7,500 connected equipment warranty.