Series CB/CFT
.375" (3/8") 9.52mm Center-to-Center Spacing
Features:
Compact Barrier-Type Design
– Especially suited for
electronic and control feed-thru applications where space
saving is required
Fully Insulated Feed-Thru, Disconnect, Printed Circuit or
Surface Connection
– One thru 26 terminals on .375" center-
to-center spacing
Improved High Barrier-Type Design
– Meets industrial
control clearance and creepage requirements set by UL. Rated
20A up to 600V
Suitable for High Moisture and Dust Environments
–
Blocks are made of break resistance, high-impact black
thermoplastic
Solid Construction
– Terminals are molded in place with
precision screw machined brass inserts which will not twist.
Virtually eliminating broken solder oints while providing a full
mechanical thread system
Broad Wire Rage
– No. 6-32 external terminal screw UL
recognized for No. 22AWG to No. 12AWG
Recognition and Listing
– UL recognized and CSA certified
Recognized under the Components Program of
Underwriters Laboratories, Inc. Standard 1059,
Guide No. XCFR2, File No. E62557.
Guide No. 22.2 No. 158, Report No. LR39186-1.
Complies with IEC 947-7-1
SERIES CB/CFT VARIATIONS
.63
(16,0)
.744
(18,89)
.20
(5,08)
.062
(16,0)
.63
(16,0)
1.09
(27,7)
.344
(8,74)
CFT
turret-type
solder pin
.344
(
(8,74)
.072
(18,3)
.102
(2,60)
.252
(6,40)
CBP
.062" dia.
.344
printed
(8,74)
circuit pin
CBFT
turret
t-type
solde pin
er
.076 Dia.
(1,93)
.120 Dia.
(3,05)
.266
(6,76)
.090
(2,29)
CBDR
right angle
printed
circuit
disconnect
BARRIER STYLE
Single Row
CFTD
printed
circuit
disconnect
CFTP
.062" dia
a.
printed
circuit pin
n
.20
(5,08)
.062
(15,7)
CFTQ
.250"
QC tab
terminal
.375
(5,53)
.252 Dia.
(6,40)
.106
.110
.252
Dia.
(6,40)
CFTD is normally supplied
with standard pin installed.
.20
(5,08)
NOTE: Consult factory for minimums
16
www.curtisind.com
Curtis Industries
A Division of Powers Holdings, Inc.
ci c tions su ct to c n .
Dimensions are shown for
reference purposes only.
S e i
ations:
Center-to-Center Spacing:
.375" (9.52mm)
Wire Range:
No. 22AWG to No. 12AWG
No. of Terminals:
1 thru 26
Voltage Rating:
CSA – 300V
Screw Terminals:
UL – 600V – Limited Energy Devices
UL – 300V – General Industrial
Quick Connects:
UL – 125V – General Appliance
Tightening Torque:
Wire Binding Screw 12 in.-lb.
Wire Clamps
20 in.-lb.
Current Rating:
20 amps
Housing:
Material
Thermoplastic Polyester
Continuous Use
Temp. (UL Index)
140°C (284°F)
Flammability Rating
94V-0
Water Absorption
(24 hrs. % wt. gain) .08%
Chemical Resistance
Excellent in most environments
Breakdown Voltage:
Terminal - Terminal
7,000V Typ.
Terminal - Ground
6,000V Typ.
Terminals:
Solid Brass
Solder style terminals are plated with high-purity tin for
optimum solderability
Contact Resistance:
.002 Ohm Typ. – CFTD
Series CB/CFT With
Mounting Ends
Dimensions
Number
of
Terminals
A ± .031 Overall
Dimensions (O.D.)
Inches
Metric
(mm)
B ± .031 Mounting
Dimensions
(M.D.)
Inches
Metric
(mm)
Without
Mounting
Ends
C ± .031
Less Mounting
Positions
Inches
Metric
(mm)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
.750
1.125
1.500
1.875
2.250
2.625
3.000
3.375
3.750
4.500
19.05
28.57
38.10
47.62
57.15
66.67
76.20
85.72
95.25
114.30
1.062
1.437
1.812
2.187
2.562
2.937
3.312
3.687
4.437
26.98
36.51
.437
.812
11.11
20.63
30.16
39.68
49.21
58.73
68.26
77.78
87.31
96.83
115.88
46.03 1.187
55.56 1.562
65.08 1.937
74.61 2.312
84.13 2.687
93.66 3.062
112.71 3.812
Single Row
4.062 103.18 3.437
4.125 104.77
4.875 123.82
5.250 133.35
5.625 142.87
6.000 152.40
6.375 161.92
6.750 171.45
7.125 180.97
7.500 190.50
7.875 200.02
8.250 209.55
8.625 219.07
9.000 228.60
9.375 238.12
4.812 122.23 4.187 106.36
5.187 131.76 4.562
5.562 141.28 4.937 125.41
5.937 150.81 5.312 134.93
6.312 160.33 5.687 144.46
6.687 169.86 6.062 153.98
7.062 179.38 6.437 163.51
7.437 188.91 6.812 173.03
7.812 198.43 7.187 182.56
8.187 207.96 7.562 192.08
8.562 217.48 7.937 201.61
8.937 227.01 8.312
211.13
9.312 236.53 8.687 220.66
9.687 246.06 9.062 230.18
265.11 9.812 249.23
BARRIER STYLE
INTERNAL TERMINAL DESIGNATIONS
CBP
CBFT
CFT
CFTP
CFTQ
CFTD
CBDR
printed circuit board design with .062" diameter
tin-plated brass pin
tin-plated brass turret-type solder pin
tin-plated brass turret-type solder pin
printed circuit board design with .062" diameter
tin-plated brass pin
.250" quick connect tab terminal
disconnect design with factory installed pin
terminals for printed circuit mounting
right angle disconnect design
9.750 247.65 10.062 255.58 9.437 239.71
10.125 257.17 10.437
Dimensions shown are ± 0.030"
EXTERNAL TERMINAL DESIGNATIONS
CBP, CBFT, CFT,
CFTP, CFTD
CBDR
CBPW, CFTW,
CBFTW, CFTPW,
CFTQW, CFTDW,
CBDRW
screw terminal with No. 6-32 plated
steel* screw accepting wire up to
No. 12AWG
6-32 combo head screw with
captivated traveling wire clamp
Series CB/CFT Dimensions
.437
(11,10)
O.D.
M.D.
.718
(18,23)
.350
(8,89)
.190 Dia. Mtfg. Holes (2)
(4,82)
.187
(4,75)
.562
(14,3)
* Other materials available – contact factory or your local
representative for additional information.
Dimensions are in inches and millimeters
unless otherwise speci ed.
Values in parentheses are metric equivalents.
Curtis Industries
A Division of Powers Holdings, Inc.
1-800-657-0853
17
How to Order
CFT Series terminal blocks are ordered by listing designation
followed by the number of poles required for the application.
Example: Type CFT 10-pole block becomes stock number
CFT-10.
Suffixes are used as follows:
W denotes model with wire clamp replacing external
screw terminal
C denotes model less mounting positions
To specify quick-connect terminals, simply add the style
number required.
May be purchased factory-assembled or as customer-
installed accessory.
The CFT-10 described above with wire clamp less mounting
positions thus converts to sock number CFTWC-10.
Series CB/CFT Accessories
MARKING STRIPS
CB/CFT – Pre-punched black ber . . . mounts under block.
May be imprinted to customer speci cations.
To order, specify: Part No. 278A10-1 thru 26 (with mounting
hole); Part No. 278A36-1 thru 26 (less mounting hole).
Single Row
PC BOARD DRILLING DIMENSIONS
.375
Typ.
2-11 Terminals
Ø.079 (No. 47 Drill)
12 Terminals and Over
T
Ø.093 (No. 42 Drill)
COVERS
CB/CFT – Rigid .030" thick self-extinguishing vinyl. Black
matte- nished on both sides. May double as marking strip
when imprinted with white ink. Complete with spring clips for
attaching to mounting positions.
Part No. 278B27-1 thru 26 terminals
BARRIER STYLE
TERMINAL BLOCK JUMPERS
CB/CFT – Jumper is constructed of plated brass. “Rooster
comb” design permits connections of two to 10 poles.
To order, specify; Part No. 278-A11 (plus no. of poles)
Example: 278-A11-10, 10 Pole Jumper
WIRE CLAMP
CB/CFT – Wire clamp captivated to No. 6-32 screw eliminates
need for lugs. Accepts No. 14AWG wire. Part No. 58523700
Terminal blocks are normally supplied with No. 6-32 combo
head screws. Other styles and materials on special order.
18
www.curtisind.com
Curtis Industries
A Division of Powers Holdings, Inc.
Speci cations sub ect to change.
Dimensions are shown for
reference purposes only.
QUICK-CONNECT
TERMINALS
CB/CFT – Available with .187"
x .020" quick-connect tabs of
tin-plated brass, held in place
by terminal screws. Six styles
. . . one to six terminations per
pole. Factory-assembled or
customer installed. Last digit
of part number corresponds to
previous style numbers.
.169 (4,29) Dia.
Holes (2)
1.264
(32,10)
.370
(9,39)
.125
(3,17)
.031
(0,78)
TB51
.187
.632
(16,05)
.150 (4,75)
(3,81)
.169 (4,29) Dia. Hole
.300
(7,62)
Part No. TB51
51
.500
(12,70)
.545
(13,84)
Ref.)
.250
(6,35)
TINNERMAN NUT
CFT – for speed mounting of
terminal blocks less mounting
position.
Part No. TN-375.
Single Row
TB52
Part No. TB52
1.033
(26,23)
Ref.)
.530
(13,46)
45°
.265
(6,73)
BARRIER STYLE
TB53
Part No. TB53
.881
(22,37)
Ref.
.250
(6,35)
TB54
Part No. TB54
.513
(13,03)
Ref.)
.250
(6,35)
TB55
Part No. TB55
.758
(19,25)
Ref.)
.250
(6,35)
TB56
Part No. TB56
Dimensions are in inches and millimeters
unless otherwise speci ed.
Values in parentheses are metric equivalents.
Curtis Industries
A Division of Powers Holdings, Inc.
1-800-657-0853
19
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