Encyclopedia of Grounding (CA09040E)

Cluster Grounding Clamps

G3803 3-Cluster Set

G3405 3-Cluster Set

with Snap-On (Duckbill-type) Aluminum-body clamps,

with C-Type Aluminum-body clamps,

Grounding Equipment – 3000 Smooth jaws, Bronze eyescrews with Acme threads, and 3-phase Aluminum cluster bar with Bronze Pressure-type terminals

Smooth jaws, Bronze eyescrews with fine threads, and 3-phase Aluminum cluster bar with Bronze Pressure-type terminals

Important Note: Cluster Sets are furnished as shown above. The center clamp is bolted to the cluster bar.

Typical fourth ground clamp (not included in 3-Cluster Set, must be ordered as separate item)

These drawings illustrate how Cluster Sets are to be con nected, with grounding cable and a fourth clamp which must be ordered separately.

For cable and ferrules, see page 3021.

Catalog Number

G3405

G3803

ELECTRICAL RATINGS Continuous Current (AMPS)

350

400

Fault Current - 15 Cycles (AMPS)

27,000

34,000

Fault Current - 30 Cycles (AMPS)

20,000

25,000

MECHANICAL RATINGS Recommended Torque (in.-lb.)

250

250

400 kcmil Str. Cu. 636 kcmil ACSR (.998”)

566 kcmil Cu. 900 kcmil ACSR (1.162”)

Main Line Range - Max.

#8 Sol. Cu. (0.12”)

#6 Sol. Cu. (0.162”)

Main Line Range - Min.

Jumper Range - Max.

2/0 Grd. Cable

4/0 Grd. Cable

Jumper Range - Min.

#2 Grd. Cable

#2 Grd. Cable

4 1 ⁄ 2 lb. / 2 kg.

6 5 ⁄ 8 lb. / 3 kg.

Weight Each

Type I Class A Grade 3

Type I Class A Grade 4

ASTM Designation

Jaws

Smooth

Smooth

Ferrule

Plain Plug

Plain Plug

March 2020 Phone: 573-682-5521 Email: hpsliterature@hubbell.com Web: hubbellpowersystems.com

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