Technical Bulletin

ManualsBrandsPanduit ManualsBare WireAluminum Grounding Clamp, Dual Rated, #1

StructuredGround

™

Mechanical Connectors

Bronze Service Post Connector, Male Stud, Single Conductor

• For grounding one copper code conductor to steel

structures, busbars, or transformers or for tapping from

busbar with hex nut and washer

• Made from high copper content, hard drawn copper rod

provides high strength

• Pressure bar provides secure connection on a full range

of conductor combinations used with each connector

providing premium wire pull-out strength

• cULus 467 Listed for grounding and bonding and

suitable for direct burial in earth or concrete

Part Number

Conductor Size

Range (AWG)

Stud

Size*

(UNC threads)

Figure Dimensions

(In.)

Nut

Hex

(In.)

Body

Hex

(In.)

Std.

Pkg.

Qty.

L Z

SP1-8-C

#12 SOL – #8 STR 1/4 – 20

0.63 0.50

0.50 0.38 100

SP1-8L-C

0.63 1.00

GSP1-12-6-C¹

#12 SOL - #6 STR 1/4 – 20

0.87 0.83

0.69 0.56 100

SP1-7-C

#8 SOL - #7 STR 1/4 - 20

0.88 0.50

0.69 0.50 100

SP1-7L-C

0.88 1.00

SP1-4-C

#10 SOL - #4 STR 5/16 - 18

0.94 0.56

0.75 0.56 100

SP1-4L-C

0.94 1.00

GSP1-10-4-C²

#10 SOL - #4 STR 5/16 - 18

1.06 0.83

0.81 0.69 100

SP1-3-C

#6 SOL - #3 STR 3/8 – 16

1.06 0.63

0.81 0.63 100

SP1-3L-C

1.06 1.13

GSP1-6-2-C³

#6 SOL - #2 STR 3/8 - 16

1.06 0.83

0.81 0.69 100

SP1-2-C

#4 STR - #2 STR 3/8 - 16

1.06 0.63

0.88 0.69 100

SP1-2L-C

1.06 1.13

SP1-1/0-L

#6 SOL - 1/0 STR 1/2 - 13

1.31 0.75

1.00 0.75 50

SP1-1/0L-L

1.31 1.25

GSP1-4-2/0-L

#4 SOL - 2/0 STR 3/8 - 16

1.32 0.83

1.06 0.88 50

SP1-2/0-Q

#1 SOL - 2/0 STR 1/2 - 13

1.44 0.75

1.13 0.88 25

SP1-2/0L-Q

1.44 1.25

SP1-4/0-Q

3/0 SOL - 4/0 STR 5/8 - 11

1.69 1.00

1.38 1.13 25

SP1-4/0L-Q

1.69 1.50

SP1-350-12

4/0 SOL - 350 kcmil 5/8 - 11

2.00 1.00

1.50 1.25 12

SP1-350L-12

2.00 1.50

SP1-500-12

250 kcmil - 500 kcmil 3/4 – 10

2.31 1.38

1.81 1.50 12

SP1-500L-12

2.31 1.75

*Type GSP1 does not have a true hex body. Apply open-end wrench to body width normal to conductor slot

Alternate offering for SP1-8 and SP1-7. Review stud length (Dim. Z) for potential replacement for SP1-8L and SP1-7L

Alternate offering for SP1-4. Review stud length (Dim. Z) for potential replacement for SP1-4L

Alternate offering for SP1-3 and SP1-2. Review stud length (Dim. Z) for potential replacement for SP1-3L and SP1-2L

Alternate offering for SP1-1/0 and SP1-2/0. Note stud size difference. Review stud length (Dim. Z) for potential replacement for SP1-1/0L and SP1-2/0L

RATED

• True hex design for body and nut hex provides correct

t with socket, box, or open end wrenches for easy

installation process

• Offered with standard and long stud lengths for

optimized t of the threaded stud through the mounting

surface

• Incorporates longer stud length than standard SP1 stud

length to accommodate a variety of mounting applications

• Greater wire range-taking capability allows one GSP1 part

to substitute for up to four SP1 parts (see Table for

comparatives) – reduces inventory, saves costs

Type SP1 – Premium Grade

Type GSP1 – Value Grade