268A157-6

Types T & U 1 .16" (28 .46mm) Center-to-Center Spacing High Voltage/Current Features: • Heavy Load Termination Flexibility – Designed for machine, switchboard and other heavy load terminations . • Tubular, High Pressure Solderless Connections – Accommodates wire without lugging – tapped sidewalls for greater mechanical strength – electrolytically pure copper solderless connections provide 100% conductivity . • 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 . • Heavy Load Ratings and Wire Sizes – Type T is rated at 125A/600V, has headless slotted screw, UL recognized for No . 6AWG to No . 1/0AWG wire . Type U is rated 250A/600V and features headless socket screw, UL recognized for No . 6AWG to 250MCM wire . • Recognition and Listing – UL recognized and CSA certified TYPE T Recognized under the Components Program of Underwriters Laboratories, Inc. Standard 1059, Guide No. XCFR2, File No. E62557. BARRIER STYLE Guide No. 184-N-90, Report No. LR39186-1. Terminal Designations T TYPE U U Types T & U Terminal Variations Tubular copper with tapped sidewalls and headless slotted screw . Accepts wire from No . 6 AWG to No . 1/0AWG . Tubular copper with tapped sidewalls and headless socket screw . Accepts wire from No . 6AWG to 250MCM . T tubular connector and slotted screw U tubular connector and socket screw 48 www .curtisind .com Curtis Industries A Division of Powers Holdings, Inc. Specifications subject to change. Dimensions are shown for reference purposes only . How to Order Wire Range: T – UL Recognized for No. 6AWG to No. 1/0AWG U – UL Recognized for No. 6AWG to 250MCM No. of Terminals: T – 1 thru 6 U – 1 thru 4 Voltage Rating: 600V CSA and UL Tightening Torque: T – 50 in.-lb. U – 275 in.-lb. Current Rating: T: 125 amps, U: 250 amps 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: T U Terminal - Terminal 11,000V Typ. 9,000V Typ. Terminal - Ground 9,700V Typ. 9,600V Typ. Note: Specifications contained herein are subject to change without notice. Types T and U terminal blocks are ordered by listing a composite number made up of the model designation followed by the number of terminals required for the application. Example: a 4-pole terminal block becomes T-4 or U-4 When ordering combinations of both types, the composite number is made up of both model designations followed by total number of poles and number of each type. A composite of two T terminals followed by two U terminals thus is converted to stock number TU-4 (2T, 2U). Combining these types with types L, O, 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 Inches 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 5.000 127.01 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 Dimensions shown are ± 0.030" BARRIER STYLE Types T & U Terminal Dimensions O.D. 1.875 (47.62) M.D. 1.500 (38.1) 1.00 (25.4) T U High Voltage/Current Specifications: 2.50 (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 Types T & U Accessories COVERS 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: T – Part No. 268A157 – 1 thru 6 terminals U – Part No. 268A157 – 1 thru 4 terminals Dimensions are in inches and millimeters unless otherwise specified. Values in parentheses are metric equivalents. Curtis Industries A Division of Powers Holdings, Inc. 1-800-657-0853 49