Curtis Industries
A Division of Powers Holdings, Inc.
1-800-657-0853
Dimensions are in inches and millimeters
unless otherwise speci¿ed.
Values in parentheses are metric equivalents.
51
BARRIER STYLEHigh Voltage/Current
6SeFi¿Fations:
Wire Range:
L – UL Recognized for No. 1AWG
O – UL Recognized for No. 1/0AWG
S – UL Recognized for No. 4/0AWG
No. of Terminals: L – 1 thru 12
O – 1 thru 4
S – 1 thru 4
Voltage Rating:
600V CSA and UL
Tightening Torque: L – 50 in.-lb.
O – 50 in.-lb.
S – 200 in.-lb.
Current Rating: L – 100A, O – 125A, S – 225A
Housing:
Material Phenolic
Continuous Use
Temp. (UL Index) 150°C (302°F)
Flammability Rating 94V-1
Water Absorption
(24 hrs. % wt. gain) 0.5%
Chemical Resistance Resistant to most organic solvents
Breakdown Voltage: L O S
Terminal - Terminal 11,000V Typ. 10,900V Typ. 10,400V Typ.
Terminal - Ground 9,700V Typ. 10,300V Typ. 10,500V Typ.
Note: Speci¿cations contained herein are subMect to change
without notice.
How to Order
Types L, O and S terminal blocks are ordered by listing a
model number made up of the series designation followed by
the number of terminals required for the application.
Example: a 4-pole terminal block becomes L-4, 0-4 or S-4
When ordering combinations of both types, the model
number is made up of both series designations followed by
total number of poles and number of each type. A model
number of two L terminals followed by two O terminals thus is
converted to stock number LO-4 (2L, 2O).
Combining these types with types T, U, S, H and BT would
follow the same ordering format. (Note: When combined with
types H or BT, a special adapter is required.)
Number of
Terminals
Mounting
Dimensions
Overall
Dimensions
Inches
Metric
(mm)
Inches
Metric
(mm)
1 2.183 55.46 2.683 68.16
2 3.342 84.88 3.842 97.58
3 4.500 114.31 5.000 127.0
4 5.659 143.73 6.159 156.43
5 6.817 173.16 7.317 185.86
6 7.976 202.59 8.476 215.29
7 9.134 232.01 9.634 244.71
8 10.293 261.44 10.793 274.14
9 11.451 290.86 11.951 303.56
10 12.610 320.29 13.110 332.99
11 13.768 349.71 14.268 362.41
12 14.927 379.14 15.427 391.84
Number of
Terminals
Mounting
Dimensions
Overall
Dimensions
Inches
Metric
(mm)
Inches
Metric
(mm)
1 2.880 73.16 3.380 85.86
2 4.736 120.29 5.236 132.99
3 6.591 167.42 7.091 180.12
4 8.447 214.55 8.947 227.25
Type L
Number of
Terminals
Mounting
Dimensions
Overall
Dimensions
Inches
Metric
(mm)
Inches
Metric
(mm)
1 3.440 87.38 3.940 100.08
2 5.856 148.74 6.356 161.44
3 8.271 210.09 8.771 222.79
4 10.687 271.44 11.187 284.14
Type S
Type O
Series L, O & S Accessories
COVERS
Types T and U – Plain cover of 1/16" thick bakelite is perma-
nently positioned to block with two screws. Factory-assem-
bled or customer-installed.
To order, specify:
L – Part No. 268A158 – 1 thru 12 terminals
O – Part No. 268A159 – 1 thru 4 terminals
S – Part No. 268A160 – 1 thru 4 terminals
Dimensions shown are ± 0.030"
S – 2.42" (61.47mm) Center-to-Center Spacing
