Cut Sheet

LIQUIDTIGHT FLEXIBLE METAL CONDUITS
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800-757-6996
UL and CSA Type LFMC
(6200 Series)
Scope
This specication covers AFC Cable Systems, Inc. UL LIQUID-TUFF™ Liquidtight Flexible
Steel Conduit designed for use as a raceway for power, control and communication
cables in accordance with Article 350 of the National Electrical Code. The product is
Underwriters Laboratories Inc. (UL) Listed for 80°C (176°F) in a dry location, 60°C
(140°F) in a wet location and 70°C (158°F) in an oily location. It is also UL Listed in all
trade sizes for direct burial in either earth or concrete encasement, outdoor use and
sunlight resistance. In addition the product is CSA certied for use at 75°C (167°F)
in dry and oily locations and for minus -30°C (22°F) low temperature applications.
This Liquidtight Flexible Steel Conduit is manufactured and tested in accordance with
Underwriters Laboratories Inc. Standard UL 360 and CSA Group Standard CSA C22.2
Number 56. The product carries the UL Listing Mark and the CSA Certication Mark.
Construction
The Type LFMC (UL) Liquidtight Flexible Steel Conduit shall be formed from a zinc
coated galvanized low carbon steel strip having a uniform width and thickness. The
3/8 through 1-1/4 Trade Sizes are manufactured with square-lock prole that contains
a continuous bonding strip. The 1-1/2 through 4 Trade Sizes are manufactured with
a fully interlocked “S” prole without a bonding strip. The construction shall be in
accordance with UL 360 and CSA C22.2 Number 56 requirements. The nished Type
LFMC dimensions shall be in accordance with Table 5.1 of UL 360 and Table 2 of CSA
C22.2 No. 56 which are summarized in Table 1.
Grounding
Permanent circuit ground protection is provided through the continuous bonding
strip built into the conduit core in sizes 3/8 through 1-1/4. A separate grounding
conductor is required by the NEC® for trade sizes 1-1/2 and larger. The Canadian
Electric Code requires a grounding conductor for all trade sizes of Liquidtight Flexible
Steel Conduit.
Jacket - PVC
A rugged moisture, oil and sunlight resistant polyvinyl chloride (PVC) jacket shall be
applied directly over the exible metal conduit with a wall thickness in accordance with
Table 4.1 of UL 360 and Table 4 of CSA C22.2 No.56 which are summarized in Table 1.
Jacket Color: Gray, Black, Red, Orange, Yellow, or Green
Markings
The surface of the outer jacket shall be clearly marked with a legible print legend in
compliance with UL 360, and CSA C22.2 No. 56.
Performance Tests
In accordance with UL 360 and CSA C22.2 No. 56, the completed UL LIQUID-TUFF™
Liquidtight Flexible Steel Conduit shall meet all of the performance requirements
outlined in Appendix A.
Description
• UL bonding strip 3/8 – 1-1/4 for grounding
• UL Liquidtight all sizes
• Sunlight resistant
• Flame retardant PVC jacket
• Hot dipped zinc galvanized low carbon steel core
• Available in Gray, Black, Red, Orange, Yellow or Green. Specialty colors available
upon request
• Available with FT-4 PVC upon request
Temperature Rating
• 80°C/176°F DRY
• 60°C/140°F WET
• 70°C/158°F OIL
• UL Listed for 40C/40F LOW TEMPERATURE
Applications
Suitable for use in:
• NEC® 350 Liquidtight Flexible Metal Conduit Type LFMC
• Wet Locations
• Direct Burial in earth
• Concrete Embedment
• Exposure to Sunlight and Weather
• Grounding in 3/8 to 1-1/4 trade sizes per NEC® 250.118(6)
• Flexible Connections in Hazardous Locations:
Class I Div 2 NEC® 501.10(B)(2)(4), Class II Div 1 NEC® 502.10(A)(2)(2),
Class II Div 2 NEC® 502.10(B)(2), Class III Div 1 NEC® 503.10(A)(3)(2) and
Class III Div 2 NEC® 503.10(B).
• Raised Computer Room Floors per NEC® 645.5(E)(1)(b)(11)
• Service Entrance Wiring up to 6 feet per NEC® 230.43(15)
• Marinas and Boatyards per NEC® 555.13(A)(1)
• Electric signs and Outdoor Lighting per NEC® 600.31(A) and 600.32(A)(1)
• Flexible Connections for hoists and cranes per NEC® 610.11(C)
• Wiring Elevators, Dumbwaiters, Escalators, Moving Walks, Platforms and
Stairway Chairlifts per NEC® 620.21
• Motors for Permanently Installed Pools where Flexible Connections are
required per NEC® 680.21(A)(2)
• Spas and Hot Tubs where Flexible Connections are required per
NEC® 680.42(A)(1)
• Feeders for Natural and Articially Made Bodies of Water where Flexible
Connections are required per NEC® 682.13
• Solar Photovoltaic (PV) Systems per NEC® 690.31(A)
• Fire Pump Wiring per NEC® 695.6(D)
• Electric Fire Pump Control Wiring per NEC® 695.14(E)
References & Ratings
• Underwriters Laboratories Inc. Standard: UL 360 File: E26540
• CSA Group: Standard: C22.2 No. 56 File: 51593
• NFPA 70 NEC® Article 350
• Canadian Electric Code (CEC) Part I Clause 12-1300
• UL Listed in all Trade Sizes for Direct Burial which includes
Concrete Encasement
• Conduit in Trade Sizes 1-1/2 and larger require an equipment grounding
conductor per NEC® 350.60
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