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10 Best hvac surge protectors of 2026
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- Best Choice
1
IntermaticIntermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device, 2 Pack - Comprehensive Surge Protection, TPMOV Technology, Watertight Enclosure - UL Listed and Reliable
Main highlights-
The Intermatic AG3000 offers three modes of protection, safeguarding HVAC equipment and appliances from power surges.
Comprehensive Surge Protection
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With a Type 4X watertight and UV resistant enclosure, it's perfect for varied environments.
Ideal for Indoor and Outdoor Use
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Customers praise its reliable protection and elimination of hazardous failure modes.
Advanced TPMOV Technology
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3
IntermaticIntermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device - Advanced Surge Protection, TPMOV Tech, Watertight Enclosure - UL Listed for Reliable Safety
Main highlights-
Offers three modes of protection (L-G, L-L, L-N) to safeguard appliances.
Comprehensive Surge Protection
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Perfect for protecting HVAC equipment and home appliances from power surges.
Ideal for HVAC Systems
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Customers appreciate the clear green LED for easy monitoring.
Praised Green LED Indicator
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4
MARSMars 83905 HVAC Surge Protective Device
Main highlights-
Easy installation with weatherproof enclosure and LED protection indicator ensures reliable performance.
Simple Installation and Protection
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Perfect for safeguarding HVAC systems without needing additional overcurrent devices.
Ideal for HVAC Systems
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Users frequently commend its robust construction and long-lasting protection capabilities.
Customer Praised Durability
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DitekDITEK DTK-120/240CM+ Surge ARRESTOR, Parallel Protector, Multi-Purpose, NEMA 4X, UL1449 Listed, SPD, Type 1, 2W(+G), 120/240VAC
Main highlights-
120/240VAC, 2W +G, MULTI-PURPOSE, NEMA 4X, PARALLEL PROTECTOR, Easy to install, well made, fast delivery, bright LED indicator, 12 AWG stranded wires.
Primary Features and Benefits
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Protects HVAC systems, mini-split units, furnaces, submersible well pumps, and various household appliances from power surges and damage to circuit boards.
Ideal Use Scenarios
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Easy installation process and effective surge protection, with a bright LED indicator to show operational status.
Most Praised Feature
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9
LevitonLeviton Type 1 Surge Protective Panel, Residential Home Surge Protection, 120/240 VAC, Split Phase, 36kA per Phase, R2120-B SPD
Main highlights-
The Leviton R2120-B is compact and easy to install, ideal for residential use.
Compact Design and Easy Installation
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Perfect for homes, dormitories, and hotels, complying with NEC 2023 requirements.
Ideal for Residential and Hospitality Applications
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Customers appreciate its reliability and effectiveness in diverting voltage surges.
Highly Rated for Reliability
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AG3000 HVAC Surge Protector 120/240V, House Surge Protectors, AC Surge Protector, Whole House Surge Protective Device for Mini Split, TPMOV Technology, Watertight Enclosure, 5 Year Warranty
【Whole House Surge Protector】 AG3000 safeguards air conditioners, furnaces, mini split systems, water heaters, refrigerators, and other home appliances against overvoltage, spikes, and power surges. The 120/240V AC Surge Protection replacement for Intermatic ag3000.
Wells 120/240V Universal Surge Protector for HVAC & Heat Pump - 25kA Type 1 SPD, 200kA SCCR, NEMA 4X/ IP66 Waterproof Outdoor Enclosure, TFMV Technology, Easy Installation (1-Phase, 3-Wire)
UL-Listed Surge Protector: Provides comprehensive protection for HVAC equipment, condensers, compressors, and other critical devices. Compliant with UL 1449 4th Edition standards, suitable for 240V/120V systems, effectively prevents electrical surges and equipment damage
HVAC Surge Protector 120/240V Mini Split Surge Protector with TPMOV Technology Device for AG3000, Watertight Enclosure Lightning Protection, Comprehensive Surge Protection
【 HVAC Surge Protector】Three protection modes: L-G, L-L, L-N. Two installation modes: ① The 240V Surge Protector device can be directly installed on the AC circuit breaker to protect HVAC equipment ② Connect the surge protector to the home distribution board to extend the protection range
120/240CM+ Surge ARRESTOR,Replacement for Ditek DTK-120/240CM+ HVAC Surge Arrestor,120/240CM+ Surge Suppressor,Parallel Protector,Multi-Purpose,NEMA 4X,UL Listed SPD Type 1 120/240VAC
Efficient Protection: The 120/240CM+ Surge Arrestor utilizes superior technology and design to quickly respond to and limit transient overvoltages, limiting the level of overvoltage to that which the equipment or system can withstand, effectively protecting electronic equipment from transient overvoltages such as surges, lightning, and other damages.
AG3000 HVAC Surge Protector 120/240V – Universal Mini Split Surge Protective Device with TPMOV Technology, Type 4X Watertight Enclosure, LED Status Indicator, Comprehensive Surge Protection
【HVAC Surge Protector 】The AG3000 surge protection offers three protection modes: L-G (Line to Ground), L-L (Line to Line), and L-N (Line to Neutral). Helps safeguard HVAC systems, air conditioners, and household appliances against electrical surges
Kolasina 120/240 VAC Universal HVAC Surge Protective Device AG3000 TPMOV Technology, Watertight Enclosure, Comprehensive Surge Protection
【Surge Protection】The AG3000 provides three modes of protection: L-G (Line to Ground), L-L (Line to Line), and L-N (Line to Neutral). This broad coverage ensures that your HVAC equipment, appliances, and electrical devices are fully protected against damaging electrical surges.
AG3000 HVAC Surge Protector 120/240V with TPMOV Technology, 3-Mode Whole House Surge Protective Device Hardwired for Mini Split, Air Conditioner and Heat Pump, NEMA 4X Watertight with LED Indicator
3-MODE SURGE PROTECTION: The AG3000 surge protector protects HVAC systems and appliances through a triple protection mode (L-G/L-L/L-N), shielding power surges and preventing potential damage
WeCooper 120/240VAC Universal HVAC Surge Protective Device,Type 1 SPD,25KA,IP66,SCCR 200KA,TFMV Technology,1-Phase,3-Wire, UL1449 4th,Ultimate Comprehensive Surge Protection
Widly Surge Protection: Safeguard your HVAC equipment, home or office appliances with this surge protection device,Nominal System Voltage(UL 1449 4th:Type 1;L-L:240 VAC; L-G:120 VAC) to shield against power surges and prevent potential damage
2Pcs AG3000 HVAC Surge Protector 120/240V, 3-Mode Mini Split Surge Protector with TPMOV Technology, Whole House Surge Protective Device for HVAC, Furnace, AC, Watertight Enclosure
3-MODE SURGE PROTECTION: The AG3000 surge protector protects HVAC systems and appliances through a triple protection mode (L-G/L-L/L-N), shielding power surges and preventing potential damage
