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Three-Way

for *ball-stud, conductors, busbars

Versatile clamp serves such temporary-grounding uses as a truck-grounding system; on industrial metalclad switchgear; substation buswork - indoors and out; overhead, underground and substation switches; and three-phase ground sets with special, multi-angle *ball studs. Compact design delivers a high-current rating usually associated with only large clamps.

For grounding trucks or other equipment, *ball stud permanently mounts on each body with furnished lockwasher, flat washer and nut. Removable stud has recessed-hex end fitting for through-mounting versatility.

Clamp body is aluminum. Acme-threaded eyescrew and *ballstud are bronze alloy. Tin-plated ball-stud has 20mm (0.788") diameter ball, 7/8"-hex fitting and 1-1/2"-long 1/2"-13 threads to fit NEMA terminal pads.

ASTM Designation of Type I, Class A, Grade 5 is met if associated grounding-cable sets are fitted with copper ferrules as on page 3018.

Fault Current Ratings

  • 43,000 Amps - 15 cycles
  • 30,000 Amps - 30 cycles

Recommended Installing Torques:
Eyescrew 250 inch-pounds
*Ball Stud 300 inch-pounds

By supporting other clamps in three-phase sets, ball studs reduce installation labor. This can contribute to safety and minimize the number of clamp connections per conductor in an overhead grounding scheme.

*Ball -studs mount without furnished washers in holes of lower clamp boss. The tapped holes ship with plastic plugs.

Clamp terminal is tapped for 5/8"-11 UNC threaded-stud ferrules on grounding cable from #2 through 4/0.

Clamp Main Line Range:

  • Bare Conductors from #8 Sol. Cu. through 636 ACSR
  • Flat Busbar through 1/4" x 11/4" maximum
  • Ball-Stud 20mm (0.788") only
Catalog No. Description Weight, each
C6002316 Three-Way Clamp Body only 1 1/2 lb./0.68 kg.
C6002317 *20mm (0.788") diameter Ball Stud with flat washer, lockwasher and nut 3/8 lb./0.2 kg.
Hubbell Power Systems All contents Copyright© 2001 - Hubbell Incorporated. All rights reserved. Because Hubbell has a policy of continuous product improvement, we reserve the right to change design specifications without notice.
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