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
0.250” PITCH
SERIES #3
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
:
#3-48 steel, zinc plating with clear
chromate coating. Wire clamping screws
standard.
3PCV-03 & 3PCV-10
M
ECHANICAL
P
ITCH
(T
ERMINAL
S
PACING
):
0.250”
R
ECOMMENDED
PCB H
OLE
D
IA
.:
1.8mm (.073”)
R
ECOMMENDED
T
IGHTENING
T
ORQUE
:
5.5 in.-lbs.
E
LECTRICAL
P
ROPERTIES
M
AXIMUM
C
URRENT
:
10A
O
PERATING
V
OLTAGE
:
150V (limited rating)
W
IRE
R
ANGE
:
18-22 AWG
E
NVIRONMENTAL
P
ROPERTIES
O
PERATING
T
EMPERATURE
R
ANGE
:
105°C max.
4,1
(.16)
6,3
(.25)
1,8
(.07)
0,9
(.035)
6,1
(.24)
4,8
(.19)
4,1
(.16)
3,15 DIA.
(.125)
14,0
(.55)
8,4
(.33)
RIGHT ANGLE
MOUNTING PANEL LAYOUT
VERTICAL
Optional
End Mountin
6,3
(.250)
1,8 DIA.
(.073)
4,1
(.16)
RIGHT ANGLE
VERTICAL
6,1
(.24)
5,8
(.23)
Right
Angle
Mount
7,6
(.30)
3,2/(.125) dia.
RIGHT ANGLE
PRINTED CIRCUIT LAYOUT
CENTER
®
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).
56
Barrier Strips
Tri-Barriers
0.250” PITCH
SERIES #3
O
RDERING
I
NFORMATION
3 PCV - 04 - 004
A
B
C
C
D
A
Screw Size Spacing
3
= #3-48 on .250" Centers
Terminal Style
PCV
= Printed Circuit Pin, Vertical
PCR
= Printed Circuit, Right Angle
STV
= Solder Turret, Vertical
STR
= Solder Turret, Right Angle
WWV
= Solderless Wire Wrap, Vertical
No. of Circuits
(Not Positions)
02
through
32
B
D
Modifier
Use table below.
Note:
If modifier is -000
it may be omitted. (3PCV-06)
Combo Head
Slotted Head
Phil-slot Head Slotted Head
Terminal
Style
PCV
Modifier
Slotted Head
000
Modifier
Phil-slot Head
006
Screw Style
Wire Clamp
Mounting Construction
No Mounting
004
008
Wire Clamp
PCR
000
006
Wire Clamp
No Mounting
004
008
Wire Clamp
STV
WWV
000
006
Wire Clamp
004
008
Wire Clamp
No Mounting
STR
000
006
Wire Clamp
004
008
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.
57
Barrier Strips
Tri-Barriers
0.250” PITCH
SERIES #3
Printed Circuit Pin
4,8
4,8
(.19)
(.19)
4,8
(.19)
PCR
PCR
PCR
Optional End
Optional End
Mount
Mount
Optional End
Mount
5,1
5,1
(.20)
(.20)
5,1
(.20)
5,8
5,8
(.23)
(.23)
5,8
(.23)
PCV
PCV
PCV
1,1
1,1
(.045)
(.045)
1,1
(.045)
0,8
0,8
(.036)
(.036)
0,8
(.036)
4,1
4,1
(.16)
(.16)
4,1
(.16)
Solder Turret
10,2
10,2
(.40)
(.40)
10,2
(.40)
Optional End
Optional End
Mount
Mount
Optional End
Mount
5,8
5,8
(.23)
(.23)
5,8
(.23)
STTR
STTR
STTR
STV
STV
STV
6,4
(.25)
6,4
Dia.
(.25)
Dia.
3,18 Dia.
(.125)
3,18 Dia.
(.125)
#3 Right Angle
Mount Bushing
#3 Right Angle
10,2
10,2
(.40)
(.40)
10,2
(.40)
2,5
(.10)
2,5
(.10)
1,1
(.045)
1,1
(.045)
2,5
(.10)
2,5
(.10)
0,9
(.035)
0,9
(.035)
4,1
(.16)
4,1
(.16)
Mount Bushing
Wire Wrap
#3WWR not available
Optional End
Mount
Optional End
Mount
WWV
WWV
1,1
(.045)
1,1
(.045)
12,7
(.50)
12,7
(.50)
0,9
(.035)
0,9
(.035)
4,1
(.16)
4,1
(.16)
®
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.)
58
Barrier Strips
Tri-Barriers
0.250” PITCH
SERIES #3
1,8
(.07)
0,9
(.035)
6,1
(.24)
4,1
(.16)
14,0
(.55)
L = A+ 12,7
(.500)
A
3,04
(.12)
Dia.
6,1
(.24)
4,8
(.19)
4,1
(.16)
Optional
End Mounting
6,3
(.250)
1,8 DIA.
(.073)
4,1
(.16)
#3-48 Binding Head Screw
#3-48 Wire Clamping Screw (Std.)
6,1
(.24)
Right
Angle
Mount
7,6
6,3
(.30) (.25)
1,0
(.04)
12,7
(.50)
Vertical
Mount
3,2/(.125) dia.
TERMINALS
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
A
(0.25) 6,3
(0.50) 12,7
(0.75) 19,0
TERMINALS
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
A
(4.25) 107,9
(4.50) 114,3
(4.75) 120,6
(5.00) 127,0
(5.25) 133,3
(5.50) 139,7
(5.75) 146,0
(6.00) 152,4
(6.25) 158,8
(6.50) 165,1
(6.75) 171,5
(7.00) 177,8
(7.25) 184,2
(7.50) 190,5
(7.75) 196,9
(1.00) 25,4
(1.25) 31,7
(1.50) 38,1
(1.75) 44,4
(2.00) 50,8
(2.25) 57,1
(2.50) 63,5
(2.75) 69,8
(3.00) 76,2
(3.25) 82,5
(3.50) 88,9
(3.75) 95,2
(4.00) 101,6
®
LR30811
E54800
Thomas & Betts Electronics/OEM Division Tel: 901-252-7766 Fax: 901-252-1312
59
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