Barrier Strips
Tri-Barriers
D
ESCRIPTION
/A
PPLICATION
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.
TRI-BARRIER STRIPS
A
PPLICATIONS
• Industrial controls and automation
• Machine tools
• HVAC/R
• Power supplies
• Security/Irrigation
• Transformers
D
ESIGN
A
DVANTAGES
• 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
CONNECTOR INDEX
0.250”
0.250”
0.325”
0.325”
0.375”
0.375”
0.375”
0.375”
Pitch, Series #3....................................................56-59
Pitch, Series RSB2..............................................60, 61
Pitch, Series #4....................................................62-65
Pitch, Series RSB3 ..............................................66-69
Pitch, Series #6....................................................70-73
Pitch, Series RSB6 ..............................................74-77
Pitch, Series BC6, Panel Mount ..........................78-79
Pitch, Series MB6, Double Level ........................80, 81
0.4375” Pitch, Series #8 ..................................................82, 83
•
®
Thomas & Betts Electronics/OEM Division Tel: 901-252-7766 Fax: 901-252-1312
55
Barrier Strips
Tri-Barriers
0.4375" PITCH
SERIES #8
P
HYSICAL
P
ROPERTIES
H
OUSING
M
ATERIAL
:
Polypropylene
F
LAMMABILITY
:
UL94V-0
C
OLOR
:
Black
T
ERMINAL
T
ERMINALS
:
Bright acid tin over copper alloy
S
CREWS
:
#8-32 steel, zinc plating with clear
chromate coating. Wire clamping screws stan-
dard. Binding head screw with undercut optional.
#8 SERIES TRI-BARRIERS
M
ECHANICAL
P
ITCH
(T
ERMINAL
S
PACING
):
.375"
R
ECOMMENDED
PCB H
OLE
D
IA
.:
1.8mm (.073")
E
LECTRICAL
P
ROPERTIES
M
AXIMUM
C
URRENT
:
30A
O
PERATING
V
OLTAGE
:
300V
W
IRE
R
ANGE
:
10-18 AWG (UL)
10-22 AWG (CSA)
11,1
(.4375)
8,1
(.32)
1,8 Dia.
(.073)
5,1
(.20)
3,1 (For Dual
(.514) Pin Configuration)
E
NVIRONMENTAL
P
ROPERTIES
O
PERATING
T
EMPERATURE
R
ANGE
:
105°C max.
4,5
Dia.
(.18)
8,4
(.33)
RIGHT ANGLE
VERTICAL
PRINTED CIRCUIT BOARD LAYOUT
5,5
(.255)
6,1
(.24)
4,8
(.19)
Cut Out
7,6
(.30)
11,2
(.44)
6,5
(.255)
Cut Out
4,5 Dia.
(.18)
7,6
(.30)
8,4
(.33)
3,0
(.12)
5,6
(.22)
4,5
Dia.
(.18)
RIGHT ANGLE
VERTICAL
MOUNTING PANEL LAYOUT
L = A+
22,2
(.875)
TERMINALS
2
3
4
5
6
7
8
9
10
11
12
13
14
A
TERMINALS
15
16
17
18
19
20
21
22
23
24
25
26
A
(0.4375) 11,1
(0.87) 22,2
(1.31) 33,3
(1.75) 44,5
(2.19) 55,6
(2.62) 66,7
(3.06) 77,8
(3.50) 88,9
(3.93) 100,0
(4.37) 111,1
(4.81) 122,2
(5.25) 133,3
(5.69) 144,5
(6.12) 155,6
(6.56) 166,7
(7.00) 177,8
(7.44) 188,9
(7.87) 200,0
(8.31) 211,1
(8.75) 222,2
(9.19) 233,4
(9.62) 244,5
(10.06) 255,6
(10.50) 266,7
(10.94) 277,8
20,3
(.80)
A
11,1
(.4375)
8,1
(.32)
6,5
(.255)
9,3
(.368)
8,4
(.33)
#8-32 Wire Clamping Screw (Std.)
Right
Angle
Mount
0,8
(.03)
17,8
(.770)
5,1
(.20 )
Vertical
Mount
8,5
(.335)
4,8
(.19)
5,1
(.20)
®
LR30811
E54800
Thomas & Betts Electronics/OEM Division Tel: 901-252-7766 Fax: 901-252-1312
Dimensions shown are for reference only. Dimensions are in millimeters (inches).
82
Barrier Strips
Tri-Barriers
0.4375" PITCH
SERIES #8
O
RDERING
I
NFORMATION
A
8 PCV-04-004
A
B
C
C
D
Screw Size Spacing
8
= #8-32 on .4375" Centers
Terminal Style
DBL
= Double Printed Circuit Pin
PCR
= Printed Circuit, Right Angle
PCV
= Printed Circuit Pin, Vertical
QCR
= Quick Connect Tab, Right Angle
QCV
= Quick Connect Tab, Vertical
STR
= Solder Turret, Right Angle
STV
= Solder Turret, Vertical
TBV
= Non Feed Thru
WWR
= Solderless Wire Wrap, Right Angle
WWV
= Solderless Wire Wrap, Vertical
No. of Circuits
(Not positions)
02
through
26
Modifiers
Use table below.
Note:
If modifier is -000
it may be omitted. (8PCV-06)
B
D
Combo Head
Slotted Head
Phil-slot Head Slotted Head
Terminal
Style
DBL
Modifier
Slotted Head
000
001
000
001
004
005
Modifier
Phil-slot Head
006
007
006
007
008
009
006
007
008
009
006
Screw Style
Wire Clamp
Binding Head
Wire Clamp
Binding Head
Wire Clamp
Binding Head
Wire Clamp
Binding Head
Wire Clamp
Binding Head
Wire Clamp
Mounting Construction
No Mounting
No Mounting
PCV
PCR
000
001
004
005
No Mounting
QCV
STV
WWV
000
004
QCR
STR
WWR
000
008
006
Wire Clamp
Wire Clamp
No Mounting
004
008
Wire Clamp
TBV
000
006
Wire Clamp
®
LR30811
E54800
Thomas & Betts Electronics/OEM Division Tel: 901-252-7766 Fax: 901-252-1312
Dimensions shown are for reference only. Dimensions are in inches.
83
PCB Design
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