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Clamped EBMXD explosionproof disconnect switches

The only NEMA 7 clamped enclosure for hazardous areas. One of the biggest challenges with enclosures located in hazardous areas is accessibility.  To access internal components for preventative maintenance or troubleshooting, up to 70 bolts have to be loosened and then retightened, leading to extended periods of downtime and safety risks due to improperly torqued or missing bolts.

Crouse-Hinds series clamped EBMX enclosures utilize patented clamping technology to reduce downtime, increase safety and lower maintenance costs.  EBMXD Explosionproof Disconnect Switches provide motor disconnect with circuit protection for motor circuits, lighting, heating and appliances. They are ideal for harsh and hazardous motor control environments in refineries, chemical and petrochemical plants, corrosive process facilities, food and beverage facilities, marine, and mining applications.

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Safety
Clamp ensure error-proof install
Reliability
Withstands extreme temps, water and dust
Ease of Use
Open and closes in seconds

Certifications and compliances

NEC/CEC

  • Class I, Divisions 1 & 2, Groups B, C, D
  • Class II, Groups E, F, G
  • Class III
  • Class I, Zones 1 & 2

UL Standards

  • UL1203 Explosionproof and Dust-ignitionproof Electrical Equipment for Use in Hazardous (Classified) Locations
  • UL2062 High AIC Ratings for Groups C and D
  • cUL to CSA C22.2 No. 30
  • UL/cUL certified for -50°C to+60°C
  • SASO Certificate of Conformity
  • *Suitable for use up to -40° with heater.

Environmental Ratings

  • NEMA 3R, 4X*, 7BCD, 9EFG

*Enclosures with PB23, RR2 and RR3 options are rated NEMA 3R.  All other options maintain NEMA 4X rating.

Design features

  • Clamped enclosure significantly reduces time to enter enclosure and reduces opportunity for missing, stripped or broken bolts
  • 65kAIC at 480V enclosure rating for high interrupting capacity applications
  • -50°C to +60°C temperature range for extreme environments
  • Fusible and non-fused designs for a variety of circuit protection
  • Side operated handle provides visual confirmation of proper operator alignment while cover is open and can be padlocked in either "ON" or "OFF" positions for OSHA compliance
  • Neoprene cover gasket provides NEMA 4X protection for hose down applications
  • Maximum wiring room compliance with National Electrical Code® requirements allows for easy and safe installation
  • Rugged, corrosion-resistant, cast copper-free aluminum construction provides NEMA 4X protection
  • Semi-clamshell enclosure design, with an external flanged ground joint between body and cover, provides increased access to interior components
  • Minimum enclosure-to-enclosure spacing with little interference between the opened cover and adjacent enclosure
  • Detachable tap-on mounting feet
  • Steel brackets supplied standard for lifting during installation
  • Bodies have top and bottom drilled and tapped entries for power and control conduits; removable reducers are supplied standard to accommodate smaller size conduits; all conduit entries are plugged

Standard materials

  • Body and cover – copper-free aluminum
  • Clamp – anodized copper-free aluminum
  • External hardware – stainless steel
  • Internal parts – galvanized steel

Videos

Drawings and design support

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