O-4

Types L, O & S L – 1.16" (29.46mm), O – 1.86" (47.24mm), High Voltage/Current Features: ‡ Heavy Load Termination Flexibility – Designed for machine, switchboard and other heavy load terminations. ‡ Readily Adaptable to Special Applications – Can be used for branch circuit termination with simple modification of standard terminal plate. ‡ Combined Style Design Capability – All types can be combined with each other as well as with Types H and BT. ‡ Ratings and Wire Sizes to Match High Current Needs – Type L is rated at 100A/600V, UL recognized for wire up to No. 1AWG. Type O is rated 125A/600, UL recognized for wire up to No. 1/0AWG. Type S is rated 225A/600V, UL recognized for wire up to No. 4/0AWG. (Note: UL requires the use of UL recognized lugs.) ‡ Recognition and Listing – UL recognized and CSA certified TYPE L TERMINAL DESIGNATIONS L O BARRIER STYLE S Nickel-plated brass terminal bar with 1/4" – 20 plated round-head steel screws. Accepts wire up to No. 1AWG. Nickel-plated brass terminal bar with 5/16" – 18 plated slotted hex-head steel screws. Accepts wire up to No. 1/0AWG. Nickel-plated brass terminal bar with 3/8" plated hex-head steel screws. Accepts wire up to No. 4/0AWG. Recognized under the Components Program of Underwriters Laboratories, Inc. Standard 1059, Guide No. XCFR2, File No. E62557. TYPE O Guide No. 184-N-90, Report No. LR39186-1. Types L, O & S Terminal Dimensions TYPE S 1.500 (38.1) Terminal Variations 1.875 (47.62) 3/8 – 16 1.00 (25.4) 1/4 – 20 O.D. M.D. 5/16 – 18 .842 (21.43) .750 (19.05) 1.00 (25.4) L O S 2.500 (63.5) .218 x .375 Lg. Mtg. Holes (5.53) x (9.52) NOTE: Lugs are not funished with blocks mm dim. are shown in parentheses L terminal bar and 1/4" round-head screw, max. lug width – 27/32" 50 www.curtisind.com O terminal bar and 5/16" slotted hexheadscrew, max. lug width – 3/4" S terminal bar and 3/8" slotted hexheadscrew, max. lug width – 1" Curtis Industries A Division of Powers Holdings, Inc. 6SHci¿cDtionssuEMHcttocKDnJH. Dimensions are shown for reference purposes only. S – 2.42" (61.47mm) Center-to-Center Spacing 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.) COVERS Type L Type S Types T and U – Plain cover of 1/16" thick bakelite is permanently positioned to block with two screws. Factory-assembled 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 Inches Type O Series L, O & S Accessories Mounting Dimensions Number of Terminals Metric (mm) Overall Dimensions 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 Mounting Dimensions Number of Terminals Inches Metric (mm) Inches 2.880 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 Mounting Dimensions Overall Dimensions Inches Metric (mm) 3.380 Metric (mm) 1 Number of Terminals 73.16 Overall Dimensions Inches BARRIER STYLE How to Order 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. High Voltage/Current 6SeFi¿Fations: 85.86 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 Dimensions shown are ± 0.030" 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 51