
Barrier Strips
Tri-Barriers
55
Thomas & Betts Electronics/OEM Division Tel: 901-252-7766 Fax: 901-252-1312
DESCRIPTION/APPLICATION
The Tri-Barrier product is an original
Thomas & Betts design and we set
new terminal block standards with its
introduction. In recent years, some of
our competition has copied this
design.
It’s easy to see why we’re copied.
Our Tri-Barrier blocks help contain
stray or frayed wire ends. This
prevents electrical shorts — not only
between positions on the same
block,
but
also
between
other
components immediately adjacent to
the block. With today’s high-density
PCB designs, this has become an
increasingly important feature.
APPLICATIONS
 Industrial controls and automation
 Machine tools
 HVAC/R
 Power supplies
 Security/Irrigation
 Transformers
DESIGN ADVANTAGES
 Back barriers to safeguard field
wiring
 Fast wiring – backed-out wire-
ready screws
 Interupted thread prevents screws
from falling out
 Standoffs allow flux and solvents to
drain during cleaning
 Molded-to-length or cut-to-length
versions available
 Slotted or phil-slot screws available
TRI-BARRIER STRIPS
CONNECTOR INDEX
0.250”
Pitch, Series #3....................................................56-59
0.250”
Pitch, Series RSB2..............................................60, 61
0.325”
Pitch, Series #4....................................................62-65
0.325”
Pitch, Series RSB3 ..............................................66-69
0.375”
Pitch, Series #6....................................................70-73
0.375”
Pitch, Series RSB6 ..............................................74-77
0.375”
Pitch, Series BC6, Panel Mount ..........................78-79
0.375”
Pitch, Series MB6, Double Level ........................80, 81
0.4375” Pitch, Series #8 ..................................................82, 83