EBMXB Clamped Explosion-Proof Circuit Breakers

  • Operating where flammable liquids or gases are handled, processed or used
  • Damp, wet, dirty, dusty, hazardous areas where ultimate corrosion and ingress protection is required
  • Harsh and hazardous motor control environments, including refineries, chemical and petrochemical plants, corrosive process facilities, food and beverage, marine and mining
  • For service entrance, feeder or branch circuit protection for lighting, heating, appliance and motor circuits
  • Patented clamped enclosure design reduces opportunity for missing, stripped or broken bolts
  • Simple clamp actuation for user-friendly access to enter enclosure
  • 65kAIC at 480V enclosure rating for high interrupting capacity applications
  • -50°C to +60°C temperature range for extreme environments
  • Thermal magnetic and electronic break trip option for short circuit and over current 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
  • Pre-drilled mounting plate for simple breaker installation
  • Detachable tap-on mounting feet
  • Class I, Divisions 1 & 2, Groups BA, C, D
  • Class I, Zones 1 & 2
  • Class II, Groups E, F, G
  • Class III

Additional Certifications:
• UL/cUL certified for -50°C to +60°C
• SASO Certificate of Conformity

Environmental Ratings:
• NEMA 3R, 4X, 7BCD, 9EFG

Electrical Ratings:
• 3-pole, 600 VAC
• Breaker frames:
– Eaton: EG, JG, LG (up to 500A)B
– Square D: HG (up to 100A)
– GE: TED (up to 100A

UL Standards:

  • UL1203 – Explosionproof and Dust-ignitionproof Electrical Equipment for use in Hazardous (Classified) Locations
  • UL2062 – High AIC Ratings for Groups C, D

CSA Standard:
• cUL to CSA C22.2 No. 30

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