Over Voltage Protector (OVP)

Modern transient protection engineered for today’s cathodic protection environments.

The Cathtect USA OVP is engineered for today’s cathodic protection environments, delivering compact, solid-state transient protection that clamps lightning and switching surges without interrupting CP system continuity.  Built for across-flange installations and remote infrastructure, it provides a precise, maintenance-free discharge path only when voltage exceeds a defined threshold, all within a rugged Exe-rated enclosure suited for space-constrained, safety-critical locations.  As a modern alternative to legacy transient devices, the OVP reflects Cathtect’s focused engineering approach – compact, precise, and purpose-built for real-world grid conditions.  While traditional suppliers rely on older architectures, Cathtect advances the category with solid-state reliability, transparent performance documentation, and application-specific design that meets the demands of modern critical infrastructure.

 

Product Highlights

  • High-energy transient clamping for lightning and switching surges
  • Optimized for across-flange protection in CP systems
  • Solid-state, maintenance-free design with no moving parts
  • Compact Ex e-rated enclosure for harsh or space-limited environments
  • Defined DC clamping ranges for precise system design
  • Unlimited switching cycles for long-term reliability
  • Field-ready documentation including batch test results and QA verification
  • Ideal for remote, sensitive, or distributed infrastructure
Category: SKU: N/A

Description

Engineers choose Cathtect USA when they want modern performance without legacy complexity.

 

The OVP reflects Cathtect’s focused, modern approach – optimized for real-world CP system behavior.   Unlike legacy devices that rely on bulky components or mechanical spark gaps, the OVP uses a solid-state architecture that remains electrically isolated during normal operation and activates instantly during transient events.

Engineers can select from defined DC clamping ranges, simplifying specification and ensuring compatibility with diverse pipeline and facility designs.  Every unit is batch-tested and delivered with transparent performance documentation, giving engineers confidence in both reliability and traceability.

Purpose-built for across-flange protection and remote installations, the OVP delivers dependable transient suppression without unnecessary complexity or maintenance requirements.

 

To order an Over Voltage Protector (OVP), please request a quote using the add-to-quote button above or get in touch with us directly using our contact form or by giving us a call.

Please use the Filter option below to narrow specifications, or browse the table list of standard OVP units we offer.

AC Fault Options

  1. 1.2kA (30 Cycles)
  2. 3.7kA (30 Cycles)
  3. 5kA (30 Cycles)

DC Threshold Options (OVP)

  1. (+2/-2VDC)
  2. (+1/-3VDC)

Specifications:

Electrical Performance

  • AC fault current rating: 1.2 kA or 3.7 kA (30 cycles) Note: Not designed for AC filtering or continuous AC mitigation.
  • DC clamping voltage ranges: +2V/–2V, +1V/–3V (custom ranges available)
  • High steady-state DC current drain

Mechanical & Environmental

  • IP68 submersible design (up to 2 meters)
  • Ex e enclosure suitable for Hazardous Areas Zone 1 & 2
  • Terminal polarity clearly marked
  • Unlimited switching cycles
  • Weight: 1.56 lbs (3.7 kA, +2/–2V model)

Additional information

AC Fault Options

1.2kA (30 Cycles), 3.7kA (30 Cycles), 1.2kA

DC Threshold Options (OVP)

(+1/-3VDC), (+2/-2VDC), Other