AC MITIGATION AND DECOUPLING
Precision in Protection
Cathtect’s advanced solid-state decouplers deliver modern AC mitigation, surge protection, and signal stability for critical infrastructure.
Product
Cathtect delivers a modern generation of solid-state decouplers engineered to outperform legacy designs across AC mitigation, surge handling, and signal stability. Built on advanced multi-stage filtering, consistently lower RMS voltage drop, and transparent unit-level documentation, our decouplers give engineers a technically superior alternative in a market long dominated by traditional approaches. Each device reflects a focused engineering philosophy: Precision over Scale, Modern performance over legacy assumptions offering application-specific solutions for hazardous areas, survey workflows, polarization cell replacement, and transient protection. Together, the Cathtect decoupler family raises the standard for protecting critical infrastructure in today’s AC-intensive environments.
Why Engineers Choose Cathtect Decouplers
Each product is built on the same advanced filtering platform but optimized for different field realities.
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Advanced filtering for cleaner signals and more stable AC mitigation
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Lower RMS voltage drop (50–80% lower than competing devices)
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High-energy surge handling up to 100 kA (10/350 µs)
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Transparent QA with batch test results and threshold verification
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Maintenance-free solid-state construction
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Designed for PHMSA Mega Rule compliance
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Built for today’s AC interference environments
OVER VOLTAGE PROTECTORS
Cathtect OVPs provide solid-state protection against lightning and switching surges in cathodic protection systems. Designed for across-flange installations, they deliver reliable transient protection in compact, rugged enclosures.
Product Highlights:
High-energy transient protection
Maintenance-free solid-state design
Compact Ex e-rated enclosure
Defined DC clamping thresholds
Field-ready QA documentation
SOLID STATE DECOUPLERS + ISOLATOR
Cathtect SSDs with integrated isolation switches enable accurate CIS/DCVG surveys while maintaining cathodic protection. Designed to eliminate capacitive waveform distortion, they deliver safer field operations and reliable AC mitigation.
Product Highlights:
Accurate CIS/DCVG surveys
Integrated capacitance isolation switch
CP protection remains active
Operator-safe switching
Rugged Fat Fink test-station enclosure
Maintenance-free solid-state design
DECOUPLING DEVICES (DCD)
Cathtect DCDs provide high-performance solid-state decoupling as a modern alternative to traditional polarization cells. Advanced filtering isolates DC while providing a low-impedance path for AC interference, fault currents, and lightning surges.
Product Highlights:
Advanced multi-stage filtering
Low RMS voltage drop
High-energy surge handling
Defined DC clamping thresholds
Unit-level QA documentation
VOLTAGE LIMITING DEVICES
Cathtect VLDs provide controlled transient protection by limiting voltage to a predetermined threshold. Designed for test posts, grounding systems, earth spikes, and rebar connections, they help manage hazardous voltages in cathodic protection installations.
Product Highlights:
Controlled voltage clamping
Soft turn-on as voltage rises
Protection for grounding systems and test posts
Multiple discharge-current ratings
Optional AC mitigation integration