The Original Solid-State Decoupler


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Product Description

The PCR is a solid-state device designed to simultaneously provide DC decoupling and AC continuity/grounding when used with cathodically protected structures, such as pipelines, tanks, grounding systems, and cable casings.  Commonly used to decouple electric equipment from grounding systems, for AC Mitigation projects, or other isolation and grounding applications, the PCR provides safety grounding while also isolating your cathodically protected structure, improving CP system performance. In addition, it features rugged, reliable performance and a wide range of ratings that make it suitable for a variety of applications. The PCR has been used by customers around the world and is the original solid-state decoupler offered to the industry.

UL Canada & United States
AC Fault Current (Amperes-RMS) 50/60Hz
3.7kA at 30 cycles
5.0kA at 30 cycles
10kA at 30 cycles
15kA at 30 cycles

Review the Technical Literature for full fault current tables.

AC Steady-State Current
45A (standard)
80A (optional)

(amperes – rms) 50/60Hz

Environmental Rating
NEMA 4X (standard)
NEMA 6P (optional)
Threshold Voltage
-3/+1V (standard)
-2/+2V (optional)
-4/+1V (optional)*
-6/+1V (optional)*

* Available with 3.7kA and 5kA fault current ratings. Not compatible with 80A models.

Lightning Impulse Current
100kA crest (8 x 20 µs waveform)
Hazardous (Classified) Areas
ANSI/ISA: Class I, Division 2, Groups A, B, C, D
ATEX: Zone 2, Group IIC
IECEx: Zone 2, Group IIC
UKEx: Zone 2, Group IIC

The PCR has been tested by Nationally Recognized Testing Laboratories (NRTLs) for compliance to independent standards in its operation, ratings, and construction.  This includes compliance to standards for:

Class I, Div. 2, Groups A, B, C, D and Zone 2, Group IIC

Class & Division System: UL (United States) and C-UL (Canada)

  • Effective Ground Fault Current Path per:
    • NFPA 70 (US National Electric Code – NEC): Article 250.4(A)(5)
    • CSA C22.1 (Canadian Electric Code, Part I): 10-100 & 10-500
  • Isolation of Objectionable DC Ground Currents per:
    • NFPA 70: Article 250.6(E)
    • CSA C22.1: 10-100 & 10-500
  • Hazardous Location Use: Class 1, Division 2, Groups A, B,C,D by UL & C-UL per:
    • UL 121201, 9th and CSA C22.2 No.213-17
  • Safety Requirements for Electrical Equipment per:
    • UL 61010-1, 3rd & CSA C22.2 No. 61010-1
    • Overvoltage Protection from Impulse (Lightning) Current: 100kA (8 x 20µs)
    • Enclosure Rating: NEMA 4X (NEMA 6P Optional)
    • Temperature Range: -45°C to +65°C  (-49°F to +149°F)

Zone System: ATEX / IECEx / UKEx (Europe / International / UK). ATEX per directive 2014/34/EU (Equipment for use in Potentially Explosive Atmospheres): 

  • Zone 2, Group IIC, Increased Safety “ec”
  • EN IEC 60079-0: 2018
  • EN IEC 60079-7: 2015+A1:2018
  • IEC 60079-0: 2017
  • IEC 60079-7: 2017
  • Overvoltage Protection from Impulse (Lightning) Current: 100kA (8 x 20µs)
  • Temperature Range: -45°C to +65°C
  • Enclosure Rating: IP66

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