Cut Sheet

Whatever the application. Whatever the size.
Thomas & Betts is your connection to tough,
versatile cord and cable fittings.
Thomas & Betts offers a complete line of rugged, reliable cord and cable fittings. All fittings are
produced to the highest standards, combining innovative design and precision manufacturing methods
to provide the products you need for your specific applications. Combining proven performance,
installation advantages and availability of ranges, T&B is also your connection to lower installed costs
for the life of your cord and cable requirements.
Use this guide to help you specify the fitting you need for your cord and cable requirements.
Cord and Cable Requirements
CORD AND CABLE TYPE T&B FITTING
S, SO, SV, ST, STD, SJ, Ranger
®
2920NM# Series, 2920# Series
SJO, SJT, SJTO, SVO Liquidtight Strain Relief 2500# Series
S, SO, SV, ST, STD, SJ, SJO, SJT, SJTO, SVO Wire Mesh Grips WMG-PC Series for Portable Cord
Flexible Cord and Cable Fittings
Considerations for Selection
• Selection of the proper device or fitting involves consideration of the type of cable
to be installed and the environment that will surround the cable installation.
• A proper matching of the cable and its fitting is necessary to prevent physical
damage to the cable when installed.
• NEMA Applications: Fittings used in a trade size knockout requiring a NEMA
3R, 4, 6 or 13 listing require a 5262 Series sealing ring.
Cord and Cable Descriptions
Type SJ, tradename is Junior Hard Service Cord. The outer covering is Thermoset and it is
a pendant or portable cord used in damp locations for hard usage.
Type SJO, tradename is Junior Hard Service Cord. The outer covering is oil-resistant Thermoset.
Type SJT, tradename is Junior Hard Service Cord. The outer covering is Thermoplastic.
Type SJTO, tradename is Junior Hard Service Cord. The outer covering is oil resistant Thermoplastic.
Type SO, tradename is Hard Service Cord. The outer covering is oil-resistant Thermoset
and it is a pendant or portable cord used in damp locations for extra hard usage.
Suggested Specifications for Flexible Cord and Cable Fittings
• Flexible cord or cable and associated fittings
shall be suitable for conditions of use and
location and approved for the purpose by
a nationally recognized testing laboratory,
inspection agency or product evaluation
organization
• Flexible cord or cable shall be so connected
to the device or fitting that tension will not
be transmitted to joints or terminal screws.
Sufficient slack shall be provided to avoid
sharp flexing and straining. Cord or cable
shall be installed in such a manner that
liquid will tend to run off the surface instead
of draining towards the fitting
• Where flexible cord or cable exposed to
intermittent or constant moisture and
subjected to mechanical strain is terminated
into a threaded or threadless opening,
terminating fittings shall be of watertight
strain relief type such as Thomas & Betts
series 2920, 2920AL, 2920NM, 2520, 2631
or 2672. Fittings shall be equipped with
a beveled moisture resistant/oil resistant
synthetic rubber bushing
• Where space is limited inside the
enclosure, a female hub type fitting such
as Thomas & Betts series 2631 shall be
furnished. A captivated resilient sealing
O-Ring shall be included to positively
protect against damage from overtorquing
A-136
United States
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Technical Services
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