CSA Heavy Duty Liquid-tight Flexible Metal Conduit and Fittings

T&B Liquidtight SystemsTM - Fittings and Conduit Systems

Check out our article on the new HD certification requirements in the latest issue of Electrical Line magazine.

The Canadian Electrical Code stipulates that liquid-tight flexible metal conduit and connectors used in hazardous location applications (Class I, Division 2; Class II; Class III or Zones 2, 20, 21, 22) be marked Heavy Duty as per applicable CSA standard.

The T&B Liquidtight Systems offering now includes a full range of liquid-tight flexible metal conduits and connectors that meets the CSA Heavy Duty certification.

  • Tension: Tested to 500 lbf - 66% greater force applied versus standard CSA and UL testing
  • Cold Flexibility: Placed in a freezer for 4 hours, 300% longer cold exposure and then wrapped around a smaller mandrel with a 30-37% tighter bend radius.
  • Connector Compatibility: Pulling force of 350 lbf – 133% greater force applied versus UL testing
  • Crush – Excellent crush strength: Meets the same tough standards as UL, 1,500 – 2,000 lbf - depending on conduit diameter

Below conduits have passed the rigorous testing requirements of CSA Standard C22.2 No.56-17 Annex A "Heavy Duty” and can now be used in Hazardous location applications.

Type LTGC – CSA Certified – FT4 Rated

Type LTTU – CSA Certified High-Low Temperature Conduit

Type LTZU – CSA Halogen Free, Low smoke and Low Flame Spread conduit

Type LTFU – CSA Food & Beverage. NSF certified

Type LTGU – CSA Certified and UL Listed

Type LTBU – Computer Blue Applications.

Similarly, T&B Liquidtight fittings have passed the rigorous testing requirements of CSA Standard C22.2 No.18.3-12 Annex D "Heavy Duty” and can be used in conjunction with above conduits for a full Heavy Duty solution.

Series 5200 / 5300 Steel Fittings

Series 5200 / 5300 Grounding Steel Fittings

Check out the Heavy-Duty section of our T&B Liquidtight Systems brand page for detailed technical specs of each of our conduits and connectors.

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