Types H & BT
.652" (16.56mm) Center-to-Center Spacing
Features:
Sectional, High and Medium Power Terminal Blocks
–
Designed for high power applications and control/power
circuits respectively. Units approach power ratings of larger
terminal blocks whlie retaining increased circuit density of
low power designs.
Broad Terminal Choice
– One thru 30 terminals on .652"
center-to-center spacing with white fiber circuit marking
strips.
Thru-Bolt Barrier-Type Construction
– Rated at
75A/600V for Type H; 30A/600V for Type BT.
Unique Bar and Traveling Collar Design
– Eliminates
lugging of wire on Type H. UL recognized for No. 16AWG to
No. 4AWG. Type BT uses two No. 10-32 terminal screws,
UL recognized for No. 22AWG to No. 10AWG.
Combined Style Flexibility
– Types can be used in
combination as well as be combined with types L, O, S, T &
U for greater application flexibility.
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. 184-N-90, Report No. LR39186-1.
High Voltage/Current
BARRIER STYLE
TYPE H
TYPE BT
TERMINAL DESIGNATIONS
H
BT
Brass bar with high-pressure solderless connectors
accepting wire form No. 16AWG to 4AWG.
Brass terminal bar with two No. 10-32 plated steel
terminal screws accepting wire up to No. 10AWG.
Types H & BT Terminal Variations
H
high-presure
solderless connector
Types H & BT Dimensions
O.D.
.25
(6.35)
1.25
(31.75)
BT
terminal bar with two
No. 10-32 screws
M.D.
1.50 1.00
(38.1) (25.4)
.218 x .375 Lg. Mtg. Holes
(5.53) x (9.52)
.652
(16.56)
.50
(12.7)
Marking Strip
NOTE: mm dim. are shown in parentheses
46
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.
e i
ations:
Number of
Terminals
Center-to-Center Spacing:
.652" (16.56mm)
Wire Range:
H: UL Recognized for 16AWG to No. 4AWG
HT: UL Recognized for 22AWG to No. 10AWG
No. of Terminals:
1 thru 30
Voltage Rating:
CSA: 600V
UL: 600V General Industrial
Tightening Torque:
TH:
45 in.-lb. (4WG to 6AWG)
40 in.-lb. (8AWG)
35 in.-lb. (10AWG to 16AWG)
BT: 20 in. - lbs.
Current Rating:
H: 75 amps
BT: 30 amps, UL and CSA.
Housing:
Material
Thermoplastic-Polyester
Continuous Use
Temp. (UL Index)
130°C (266°F)
Flammability Rating
94V-0
Water Absorption
(24 hrs. % wt. gain) 0.7%
Chemical Resistance
Excellent in most environments
Breakdown Voltage:
BT
H
Terminal - Terminal
10,400V Typ. 8,100V Typ.
Terminal - Ground
8,400V Typ. 7,600V Typ.
Note:
Speci cations contained herein are sub ect to change
without notice.
Mounting
Dimensions
Inches
Metric
(mm)
Overall
Dimensions
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
27
28
29
30
1.66
2.31
2.96
3.61
4.26
4.91
5.56
6.21
6.86
7.51
8.16
8.81
9.46
10.10
10.75
11.40
12.05
12.70
13.35
14.00
14.65
15.30
15.95
16.60
17.25
17.40
18.55
19.20
19.85
20.50
42.1
58.6
75.1
91.6
108.1
124.6
141.1
157.6
174.1
190.6
207.1
223.6
240.2
256.6
273.2
289.7
306.2
322.7
339.2
355.7
372.2
388.7
405.2
421.7
438.2
454.7
471.2
487.7
504.2
520.7
2.36
3.01
3.66
4.31
4.96
5.61
6.26
6.92
7.57
8.22
8.87
9.52
10.17
10.82
11.48
12.13
12.78
13.43
14.08
14.73
15.39
16.04
16.69
17.34
17.99
18.64
19.29
19.95
20.60
21.25
59.8
76.4
92.9
109.4
126.0
High Voltage/Current
142.5
159.1
175.6
192.2
208.7
225.3
241.8
258.4
274.9
291.5
308.0
324.6
341.1
357.7
374.2
390.8
407.3
423.9
440.4
457.0
473.5
490.1
506.6
523.2
539.7
BARRIER STYLE
How to Order
Types H and BT terminal blocks are ordered by listing a
model number made up of the model designation followed by
the number of terminals required for the application.
Example: a 10-pole terminal block becomes H-10 or BT-10
When ordering combinations of both types, the model
number is made up of both model designations followed by
total number of poles and number of each type.A composite
of three H terminals followed by two BT terminals thus is
converted to stock number HBT-5 (3H, 2BT).
Dimensions shown are ± 0.030"
Series H & BT Accessories
COVERS
Series H & BT – Two cover styles. Hinged cover of 3/16" thick
black bakelite pivoting from special end brackets provide
ready access to block. Factory-assembled and available only
with original terminal block order. Plain cover of 1/16" thick
black bakelite is permanently positioned to block with two
screws. Factory-assembled or customer-installed.
To order, specify:
H/BT (Plain) – Part No. 260A49 – 1 thru 30 terminals
H (Hinged) – Part No. 260A56 – 1 thru 30 terminals
BT (Hinged) – Part No. 250A122 – 1 thru 30 terminals
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
47
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