Intermatic AG3000 – HVAC Surge Protective Device 120/240 VAC • Type 1 / Type 2 • TPMOV® Technology
Heavy‑duty HVAC surge protective device with TPMOV® technology, triple‑mode protection (L‑G, L‑L, L‑N), Type 4X outdoor‑rated enclosure, and LED status indication for 120/240 VAC split‑phase systems.
The Intermatic AG3000 is a universal HVAC surge protective device engineered to safeguard furnaces, air handlers, condensers, heat pumps, hydronic systems, and mini‑splits from damaging electrical surges and brownouts. Built with advanced TPMOV® (Thermally Protected Metal Oxide Varistor) technology, the AG3000 eliminates hazardous MOV failure modes and delivers reliable, long‑term protection.
Its Type 4X watertight, UV‑resistant enclosure supports both indoor and outdoor installations, while the green/red LED indicators provide instant visual confirmation of protection status. Designed as a Type 1 or Type 2 SPD, the AG3000 installs quickly at the disconnect or service panel and carries a UL 1449 5th Edition listing along with a 3‑year product warranty and $7,500 connected equipment warranty.
Electrical
- Voltage 120/240 VAC, Single‑Phase Split‑Phase
- Modes of Protection L‑G, L‑L, L‑N (3‑Mode)
- Technology TPMOV® Thermally Protected MOV
- Type Rating Type 1 or Type 2 SPD
- UL Certification UL 1449, 5th Edition (some listings show 4th)
Construction
- Enclosure Type 4X watertight, UV‑resistant plastic
- Leads 18 in., #10 AWG
- Nipple ½" x 20 threaded, weatherproof
- Weight Approx. 0.65 lb
Indicator Meaning
Green LED Unit operating correctly / protection active
Red LED Protection diminished – replace unit
Warranty
- 3‑Year Product Warranty
- $7,500 Connected Equipment Warranty (3 years)
Applications
- Central air conditioners
- Heat pumps
- Furnaces & air handlers
- Hydronic heating systems
- Ductless mini‑splits
- Whole‑house surge protection add‑on
