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Rectangular flush-mounted breaker box surge protector with concealed wiring terminals

WUQ

WUQ SP-120-240-RL Concealed Circuit Breaker

SKU CH-5663-QZQNK

Concealed breaker-box protector rated 120/240 V withstands 228,000 A per phase against EMP, lightning and surges, backed by a $25,000 guarantee and 10-year warranty

  • Battery typeOffice Supplies & Gadgets
  • EMP, CME, lightning and over-voltage protection
  • Withstands 228,000 AMPS per phase
  • $25,000 insurance covers connected equipment
  • 10-year warranty with $50 replacement

EMP and Lightning Protection for Concealed Breaker

The WUQ SP-120-240-RL defends a flush-mounted breaker box against electromagnetic pulse, coronal mass ejection, lightning strikes and over-voltage events. It is built for homeowners who need whole-house surge defence that installs directly behind the panel cover. Buyers who require a portable or plug-in suppressor will need a different form factor.

Thermals Noise and Power Draw

The unit operates passively with no fans or moving parts, so it adds no audible noise to the electrical enclosure. It draws negligible standby current during normal monitoring and activates only when a transient exceeds its 228,000 amp per phase clamping capacity. Heat output remains minimal under routine conditions.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $657.99
Pricier than about 91% of the 1,135 comparable items (median $54.99).

Specifications

Power
Battery typeOffice Supplies & Gadgets

Questions about this item

How is the SP-120-240-RL installed in a flush-mounted breaker box, and what step is often missed?

Mount the unit inside the panel, connect each phase to a dedicated 120/240 V breaker, and bond the ground wire to the panel's grounding bar; the step often missed is torquing the breaker lugs to the manufacturer's spec so the 228,000 A surge path stays solid.

What maintenance or replacement will the SP-120-240-RL need after a major surge event?

The unit is sacrificial; after it clamps a large EMP or lightning strike, the internal modules must be replaced — the manufacturer offers a $50 swap under the 10-year limited lifetime warranty.

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