Decouplers (Solid State)

M.C.Miller's full line of Solid State Decouplers is the answer! Keep reading to discover more or skip ahead to the Products!

Why Buy a Decoupling Device?
Where are Solid State De-Couplers applied?
  1. Cathodic Protection System Isolation
    • To optimise CP Performance
  2. Safe Grounding of Electrical Hazards
    • AC Voltage; AC Faults; Lightning effects.
    • Grounding of AC while simultaneously providing DC Isolation
  3. Protection of Personnel & Plant to safe purposeful design conditions.
    • Safety first
    • Safe working & Fail Safe design.
  • De-couple dissimilar metals that must, by regulation or galvanic corrosion be AC bonded but isolated in the DC mode.
  • Isolate electrical DC equipment in Cathodic Protection systems.
  • AC coupling to earth where DC blocking/isolation is required.
  • Over voltage conditions emanating from induced AC surges, lightning and switching transients and Rectifier failure.
  • Protection of insulating joints on pipelines.
  • Mitigation of AC induced voltages.
  • Decoupling in gradient control (earth/grounding) mats from pipelines

How does a SSD deal with Induced AC?
CP optimization & AC Mitigation through Solid State Decoupling.
In AC mitigation applications, the De-Coupler should provide a continuous conduction path to ground for the AC while preserving the applied Cathodic Protection DC and provide over voltage protection when AC & DC rise above a specified predetermined level.
  1. (PCR) - Polarization Cell replacement.
  2. (SSD) - Solid state Decoupler.
  3. Isolators – Isolate the Decoupler Device temporarily in a controlled circuit.
  4. Accessories – Connectors; Mounting Brackets; Cables; Enclosure options.

You can also try out our new Decoupler Wizard online to submit for more information:
Polarization Cell Replacements (PCR)

PCR-DCD + ACM devices clamp the over-voltage state preserving the DC when an over voltage condition prevails and are typically factory set to standard thresholds ranging from +2V to –2V through –12V.

Solid State Decoupler (SSD)

SSDth + ACM are short circuit devices which upon reaching over-voltage clamping threshold, short circuit the over-voltage condition and are programmable in their negative range from -2 through to -20V. Positive clamping voltage is factory set at +2V.