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SynergEX encapsulated hazardous area lighting and heat tracing panelboards
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SynergEX encapsulated hazardous area lighting and heat tracing panelboards

Maximum safety, easy access and less downtime

Crouse-Hinds series SynergEX Panelboards provide overcurrent and short circuit protection for low voltage power, lighting and heat tracing applications in hazardous locations, such as refineries, chemical and petrochemical plants, mining, food processing facilities and corrosive and industrial processing facilities.

SynergEX components and main breaker are fully encapsulated so that sparking or heat are not capable of igniting an explosive atmosphere.  These encapsulated components allow for the use of lightweight enclosures for easy installation.  SynergEX panelboards open in seconds via two quarter-turn screws, versus up to 70+ bolts as with traditional NEMA 7 enclosures.

Fully encapsulated components
NEMA 4X and 25k AIC rating
Ease of Use
Open and closes in seconds

Certifications and compliances

  • Class I, Division 2, Groups A, B, C, D
  • Class I, Zone 2, AEx nA IIC Gc T4
  • Ex nA IIC T4 Gc

Conforms to

  • CSA C22.2 No. 29-M1989 (R2004)
  • UL67 (Ed. 12): 2009
  • CSA C22.2 No. 60079-15:2010
  • UL60079-15 (Ed. 4): 2013

Environmental ratings*

  • NEMA 3R, 4, 4X
  • Temperature class: T4
  • With main lug only: -20°C to +55°C
  • With main breaker: -20°C to +40°C

*Suitable for use up to -40° with heater.

Design features

  • Components are fully encapsulated so that sparking or heat are not capable of igniting an explosive atmosphere
  • Encapsulated chassis eliminates wire connections for a touch-safe design, decreasing potential for hot spots and reducing costly downtime when servicing
  • Lightweight design and reduced footprint for easier installation with reduced labor costs
  • Easy to open and access with only 1/4 turn (versus up to 70+ bolts in a traditional enclosure)
  • NEMA 4X enclosure for superior ingress & corrosion protection
  • -40ºC to +60ºC certified temperature range for reliability in extreme conditions
  • 25k AIC rating for high interrupting capacity protection
  • Viewing window for easy indication of breaker status
  • 12-84* circuits
  • Optional removable gland plates for easy addition of entries
  • Optional encapsulated main breaker up to 225A

*For over 42 circuits, multiple enclosures are stacked and coupled.

Standard materials

  • Enclosure – 316L stainless steel or painted sheet steel (optional)
  • Observation window – polycarbonate
  • External parts (hinges, screws, washers, ¼ turn handles, gland plates) – 316L stainless steel
  • Internal parts (screws, washers, back plate fasteners) – zinc-plated steel
  • Gaskets – silicone
  • Dead front panel – 316L stainless steel
  • Chassis lugs – tin-plated copper
  • Bonding/grounding assembly – aluminum
  • Encapsulated circuit breakers – flame rated nylon
  • Breaker handles – Type 6/6 nylon


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