Cut Sheet

Terminals
Why Sta-Kon
®
Terminals Are Better
Thomas & Betts developed the first tool-
applied solderless terminals and
connectors over 60 years ago in
response to industry awareness of the
need for better performance of electrical
systems.
Chamfered/Funneled
Terminal Barrel Entry
This feature makes wire insertion faster
and easier. Chamfering eliminates wire
strand “hang up” and departure upon
insertion into the terminal’s barrel. The
loss of even a couple of wire
strands can have negative results
on electrical efficiency and
resistance to mechanical strain.
Deep Internal Serrations
After the insertion of a wire into the
terminal’s barrel, a deep serrated interior
insures a large area of contact which
lowers the resistance of a connection.
With the mechanical force of the tool, the
wire strands cold flow into the serrated
interior. This guarantees electrical
resistance lower than the wire to which it
is applied. This feature also prevents
pullout from vibration and mechanical
strain. Deep internal serrations can be
compared to the effective holding power
of a well treaded tire on a wet highway.
Sta-Kon’s
®
Long Barrel
Design
If lowering electrical resistance,
preventing wire pullout, eliminating a
“missed” crimp and an insulator that
stays on the barrel during installation are
your goals, then you must design a
terminal with a long barrel. Most
competitive barrel lengths range from
20%-50% shorter than Sta-Kon
®
terminals. The results are usually a
stream of electrical failure, rework and
added expense. This also provides the
insulator with additional surface area,
holding tight to the barrel. Many
competitive insulators come off during
crimping due to a limited barrel length.
Brazed or Overlapped Seam
A long barrel design is of little value
unless it is one solid piece. That is why
Thomas & Betts brazes the seam on our
vinyl insulated Sta-Kon
®
and overlaps the
seam on nylon insulated terminals. Many
competitive terminals have butted
seams. This means increased chances
for wirestrand loss, poor resistance, wire
pullout and electrical failure. If the
installer doesn’t position the tool exactly
on the correct spot on the barrel, there’s
likely going to be an improper
termination. The butted seam can also
fold due to tool-applied pressure piercing
the terminals insulation from the inside
out. With a brazed or overlapped seam
the installer can crimp anywhere along
the barrel’s surface providing up to 2.5
times the tensile strength of a butted
seam terminal, guaranteeing proper
electrical flow, void free.
Strands enter as a
homogeneous group and
compact tightly under
compression due to fully
brazed seam
• Chamfered
Funnel Barrel
Entry.
• Selectively annealed
long barrel.
• Longer barrel design.
• Color-code Tefzel
®
,
Nylon or Vinyl
Insulators.
• Brazed or overlapping
seams.
• Anti-rotational
tongue.
• Hardened tongue.
• Complete wire and
stud size
identification.
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