DiTek AC Voltage Surge Protector — 50kA
About this product
Lightning strikes and utility voltage spikes kill more AC compressors than any other failure mode. A $60 surge protector is cheap insurance vs. a $1,500+ compressor replacement.
What it does
Single-phase 120/240V surge protector with 50,000 amp surge rating. Installs at the outdoor disconnect box, protecting the compressor, fan motor, and control board from grid-side voltage transients.
Why you'll want it
- Protects the single most expensive component in your AC system (the compressor)
- 50kA rating handles major utility surges and nearby lightning strikes
- Essential in storm-prone regions (Florida coast, Minnesota spring thunderstorms)
- Self-resetting — no fuses to replace
- Visual LED indicator shows protection status
Installation
Mounts inside or next to the outdoor AC disconnect. Wired across the hot legs by a qualified electrician or HVAC tech. Install time: 10-15 minutes.
What's in the box
- DiTek 50kA surge protector
- Mounting bracket
- Installation instructions
Common questions
Yes. Whole-home protectors handle most surges but don't catch everything. Adding point-of-use at the AC disconnect is standard for high-value equipment.
It handles near-miss surges (induction, ground rise). Direct lightning strikes can exceed any protector's rating — always unplug critical electronics during severe storms.
The surge protection modules degrade over time and with each surge event. Most units last 5-10 years. The LED indicator tells you when it needs replacement.
Specifications
| Brand | DiTek |
| SKU | DITEK-DTK120240CM |
| Type | HVAC Parts |
| Warranty | Manufacturer |
| Shipping | Free pallet freight |
What customers are saying
Saved $2,400 vs local contractor
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Fast shipping, exactly as described
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Installer said same one he'd buy at supply house
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Heating my 2,200 sq ft home perfectly
Installed my 96% AFUE furnace a couple months ago. Heats my 2,200 sq ft home perfectly, and my gas bill dropped noticeably compared to the old unit. Great product, great price, great experience from start to finish.
Saved enough to pay for the install
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No-pressure, honest pricing
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