Product Bulletin
StructuredGround
™
Mechanical Connectors
The ability to provide a grounding system that is both reliable
and economical is dependent upon finding the right connectors
for the application. Panduit offers grounding connectors for a wide
variety of conductor combinations and mounting configurations
in high strength electrolytic copper, aluminum and bronze
alloy materials.
Globally distributed StructuredGround
™
Mechanical Connectors
provide fast and easy terminating of ground conductors to water
pipe, ground rods, conduit, iron pipe, and structural steel for
highest reliability and lowest installed cost. With the addition of
new ground clamps to the existing line of StructuredGround
™
Mechanical Connectors, Panduit delivers the breadth of line to
supply the right connector for each unique job, providing
maximum reliability and safety for all critical electrical
connections throughout your physical infrastructure.
DB
RATED
Key Features
UL/cULus Listed and CSA Certified
Made from high strength electrolytic
copper, aluminum or bronze, and
available with tin-plating
Broad selection of
grounding connectors
Local product support
available on a global basis
Wire range-taking capability
Installed with standard screwdrivers
and hex wrenches
Benefits
Satisfies grounding specification requirements for safety and reliability
Creates optimum conductivity resulting in reliable, high quality connections
Allows consolidation to one supplier, lowering procurement costs
Provides worldwide product availability and expertise for consistent,
rapid deployment
Minimizes inventory requirements, saves cost
Saves cost on special tooling
Applications
Oil and Gas
Industrial Facilities
Solar Power
Construction
StructuredGround
™
Mechanical Connectors
DB
RATED
Bronze Service Post Connector, Male Stud, Single Conductor
• 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
• 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
Z
L
Type SP1 – Premium Grade
• True hex design for body and nut hex provides correct
fit with socket, box, or open end wrenches for easy
installation process
• Offered with standard and long stud lengths for
optimized fit of the threaded stud through the mounting
surface
Type GSP1 – Value Grade
• 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
Figure Dimensions
(In.)
L
0.63
0.63
0.87
0.88
0.88
0.94
0.94
1.06
1.06
1.06
1.06
1.06
1.06
1.31
1.31
1.32
1.44
1.44
1.69
1.69
2.00
2.00
2.31
2.31
Z
0.50
1.00
0.83
0.50
1.00
0.56
1.00
0.83
0.63
1.13
0.83
0.63
1.13
0.75
1.25
0.83
0.75
1.25
1.00
1.50
1.00
1.50
1.38
1.75
Part Number
SP1-8-C
SP1-8L-C
GSP1-12-6-C¹
SP1-7-C
SP1-7L-C
SP1-4-C
SP1-4L-C
GSP1-10-4-C²
SP1-3-C
SP1-3L-C
GSP1-6-2-C³
SP1-2-C
SP1-2L-C
SP1-1/0-L
SP1-1/0L-L
GSP1-4-2/0-L
4
SP1-2/0-Q
SP1-2/0L-Q
SP1-4/0-Q
SP1-4/0L-Q
SP1-350-12
SP1-350L-12
SP1-500-12
SP1-500L-12
Conductor Size
Range (AWG)
#12 SOL – #8 STR
#12 SOL - #6 STR
#8 SOL - #7 STR
#10 SOL - #4 STR
#10 SOL - #4 STR
#6 SOL - #3 STR
#6 SOL - #2 STR
#4 STR - #2 STR
#6 SOL - 1/0 STR
#4 SOL - 2/0 STR
#1 SOL - 2/0 STR
3/0 SOL - 4/0 STR
4/0 SOL - 350 kcmil
250 kcmil - 500 kcmil
Stud
Size*
(UNC threads)
Nut
Hex
(In.)
0.50
0.69
0.69
0.75
0.81
0.81
0.81
0.88
1.00
1.06
1.13
1.38
1.50
1.81
Body
Hex
(In.)
0.38
0.56
0.50
0.56
0.69
0.63
0.69
0.69
0.75
0.88
0.88
1.13
1.25
1.50
Std.
Pkg.
Qty.
100
100
100
100
100
100
100
100
50
50
25
25
12
12
1/4 – 20
1/4 – 20
1/4 - 20
5/16 - 18
5/16 - 18
3/8 – 16
3/8 - 16
3/8 - 16
1/2 - 13
3/8 - 16
1/2 - 13
5/8 - 11
5/8 - 11
3/4 – 10
*Type GSP1 does not have a true hex body. Apply open-end wrench to body width normal to conductor slot
1
Alternate offering for SP1-8 and SP1-7. Review stud length (Dim. Z) for potential replacement for SP1-8L and SP1-7L
2
Alternate offering for SP1-4. Review stud length (Dim. Z) for potential replacement for SP1-4L
3
Alternate offering for SP1-3 and SP1-2. Review stud length (Dim. Z) for potential replacement for SP1-3L and SP1-2L
4
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
2
StructuredGround
™
Mechanical Connectors
DB
RATED
Bronze Service Post Connector, Male Stud, Two Conductor
• 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
• For grounding two copper code conductors 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
Z
L
Type SP2 – Premium Grade
• True hex design for body and nut hex provides correct fit
with socket, box, or open end wrenches for easy installa-
tion process
• Offered with standard and long stud lengths for optimized
fit of the threaded stud through the mounting surface
Type GSP2 – Value Grade
• Incorporates longer stud length than standard SP2 stud
length to accommodate a variety of mounting applications
• Greater wire range-taking capability allows one GSP2
part to substitute for up to four SP2 parts (see Table for
comparatives) – reduces inventory, saves costs
Figure Dimensions
(In.)
L
0.75
0.75
0.94
1.00
1.00
1.16
1.16
1.30
1.09
1.09
1.30
1.38
1.28
1.69
1.69
1.65
1.88
1.88
2.25
2.25
2.69
2.69
3.19
3.19
Z
0.50
1.00
0.83
0.50
1.00
0.56
1.00
0.83
0.63
1.13
0.83
0.63
1.13
0.75
1.25
0.83
0.75
1.25
1.00
1.50
1.00
1.50
1.38
1.75
Part Number
SP2-8-C
SP2-8L-C
GSP2-12-6-C¹
SP2-7-C
SP2-7L-C
SP2-4-C
SP2-4L-C
GSP2-10-4-C²
SP2-3-C
SP2-3L-C
GSP2-10-2-C³
SP2-2-C
SP2-2L-C
SP2-1/0-L
SP2-1/0L-L
GSP2-2-2/0-L
4
SP2-2/0-Q
SP2-2/0L-Q
SP2-4/0-Q
SP2-4/0L-Q
SP2-350-12
SP2-350L-12
SP2-500-12
SP2-500L-12
Conductor Size
Range (AWG)
#12 SOL – #8 STR
#12 SOL - #6 STR
#10 SOL - #7 STR
#10 SOL - #4 STR
#10 SOL - #4 STR
#10 SOL - #3 STR
#10 SOL - #2 STR
#10 STR - #2 STR
#2 SOL - 1/0 STR
#2 SOL - 2/0 STR
#2 SOL - 2/0 STR
#1 SOL - 4/0 STR
#1 STR - 350 kcmil
3/0 STR - 500 kcmil
Stud
Size*
(UNC threads)
Nut
Hex
(In.)
0.50
0.69
0.69
0.75
0.81
0.81
0.81
0.88
1.00
1.06
1.13
1.38
1.50
1.81
Body
Hex
(In.)
0.38
0.56
0.50
0.56
0.69
0.63
0.69
0.69
0.75
0.88
0.88
1.13
1.25
1.50
Std.
Pkg.
Qty.
100
100
100
100
100
100
100
100
50
50
25
25
12
12
1/4 – 20
1/4 – 20
1/4 - 20
5/16 - 18
5/16 - 18
3/8 – 16
3/8 - 16
3/8 - 16
1/2 - 13
3/8 - 16
1/2 - 13
5/8 - 11
5/8 - 11
3/4 – 10
*Type GSP2 does not have a true hex body. Apply open-end wrench to body width normal to conductor slot
1
Alternate offering for SP2-8 and SP2-7. Review stud length (Dim. Z) for potential replacement for SP2-8L and SP2-7L
2
Alternate offering for SP2-4. Review stud length (Dim. Z) for potential replacement for SP2-4L
3
Alternate offering for SP2-3 and SP2-2. Review stud length (Dim. Z) for potential replacement for SP2-3L and SP2-2L
4
Alternate offering for SP2-1/0 and SP2-2/0. Note stud size difference. Review stud length (Dim. Z) for potential replacement for SP2-1/0L and SP2-2/0L
3
StructuredGround
™
Mechanical Connectors
DB
RATED
Bronze, Service Post Connector, Female Thread, Single Conductor
• Pressure bar provides secure connection on a full range
of conductor combinations used with each connector
providing premium wire pull-out strength
• Wire range-taking capability minimizes inventory
requirements, saves cost
• cULus 467 Listed for grounding and bonding and
suitable for direct burial in earth or concrete
• For grounding one copper code conductor to steel
structures, busbars, or transformers or for tapping
from busbar using external studs, screws, or bolts
• Made from high copper content, hard drawn copper rod
provides high strength
• True hex design for body and nut hex provides correct
fit with socket, box, or open end wrenches resulting in
proper torquing of electrical connection
Part Number
SPF1-8-C
SPF1-7-C
SPF1-4-C
SPF1-3-C
SPF1-2-C
SPF1-1/0-L
SPF1-2/0-Q
SPF1-4/0-Q
SPF1-350-12
SPF1-500-12
*UNC threads.
Conductor Size
Range (AWG)
#12 SOL – #8 STR
#10 SOL – #7 STR
#8 SOL – #4 STR
#6 STR – #3 STR
#6 STR – #2 STR
#2 SOL – 1/0 STR
#1 SOL – 2/0 STR
1/0 STR – 4/0 STR
4/0 STR – 350 kcmil
300 kcmil – 500 kcmil
Thread
Size*
1/4 – 20
1/4 – 20
5/16 – 18
3/8 – 16
3/8 – 16
1/2 – 13
1/2 – 13
5/8 – 11
5/8 – 11
3/4 – 10
Figure Dimensions
(In.)
L
0.91
1.13
1.44
1.50
1.63
1.88
2.06
2.38
2.63
3.13
Z
0.25
0.25
0.31
0.38
0.38
0.44
0.50
0.63
0.63
0.75
Nut
Hex
(In.)
0.50
0.69
0.75
0.81
0.88
1.00
1.13
1.38
1.50
1.81
Body
Hex
(In.)
0.38
0.50
0.56
0.63
0.69
0.75
0.88
1.13
1.25
1.50
Std.
Pkg.
Qty.
100
100
100
100
100
50
25
25
12
12
L
DB
RATED
• For grounding two copper code conductors to steel
structures, busbars, or transformers or for tapping from
busbar using external threaded studs, screws, or bolts
• Made from high copper content, hard drawn copper rod
provides high strength
• True hex design for body and nut hex provides correct
fit with socket, box, or open end wrenches resulting in
proper torquing of electrical connection
L
4
Z
Z
Bronze, Service Post Connector, Female Thread, Two Conductor
• Pressure bar provides secure connection on a full range
of conductor combinations used with each connector
providing premium wire pull-out strength
• Wire range-taking capability minimizes inventory
requirements, saves cost
• cULus 467 Listed for grounding and bonding and
suitable for direct burial in earth or concrete
Part Number
SPF2-8-C
SPF2-7-C
SPF2-4-C
SPF2-3-C
SPF2-2-C
SPF2-1/0-L
SPF2-2/0-Q
SPF2-4/0-Q
SPF2-350-12
SPF2-500-12
*UNC threads.
Conductor Size
Range (AWG)
#12 SOL – #8 STR
#10 SOL – #7 STR
#10 SOL – #4 STR
#10 SOL – #3 STR
#10 SOL – #2 STR
#2 SOL – 1/0 STR
#2 SOL – 2/0 STR
#1 SOL – 4/0 STR
#1 STR – 350 kcmil
3/0 STR – 500 kcmil
Thread
Size*
1/4 – 20
1/4 – 20
5/16 – 18
3/8 – 16
3/8 – 16
1/2 – 13
1/2 – 13
5/8 – 11
5/8 – 11
3/4 – 10
Figure Dimensions
(In.)
L
1.13
1.44
1.56
1.63
1.94
2.13
2.31
2.50
2.69
3.31
Z
0.25
0.25
0.31
0.38
0.38
0.44
0.50
0.63
0.63
0.75
Nut
Hex
(In.)
0.50
0.69
0.75
0.81
0.88
1.00
1.13
1.38
1.50
1.81
Body
Hex
(In.)
0.38
0.50
0.56
0.63
0.69
0.75
0.88
1.13
1.25
1.50
Std.
Pkg.
Qty.
100
100
100
100
100
50
25
25
12
12
StructuredGround
™
Mechanical Connectors
DB
RATED
Bronze Split Bolt Quad Clamp
• Each clamp accepts up to two conductors for a high
performance bond with faster installation
• Wire range-taking capability minimizes inventory
requirements, saves cost
• Made from high strength, electrolytic bronze to provide
reliable grounding connections
• Split bolt design allows easy insertion of perpendicular
conductors to speed installation
• UL 467 Listed and CSA Certified for direct burial in
earth or concrete
• UL Listed and CSA Certified for use up to 600 V and
temperature rated 90°C
W
L
E
Figure Dimensions
(In.)
Part Number
SBQC1/0-X
Conductor Size Range (AWG)
#6 SOL – 1/0 STR
E
0.75
W
1.50
L
2.00
Tightening Torque
(In. – Lbs.)
#6 – #4 AWG – 165
#3 – #1 AWG – 275
1/0 AWG – 385
Std.
Pkg.
Qty.
10
DB
RATED
Copper and Aluminum One-Hole Grounding Lay-in Lug
• cULus Listed for use up to 600 V and temperature
rated 90°C
• Wire range-taking capability minimizes inventory
requirements, saves cost
• Used for quick installation of a continuous
grounding conductor
• UL 467 Listed for grounding and bonding; copper body
lugs are UL Listed for direct burial in earth or concrete
(aluminum body lugs are not direct burial rated)
H
H
W
W
Copper
Tin-Plated Copper
Aluminum
L
L
Part Number
Copper Body
LICC4-22-C
LICC4-22TP-C
LIAC4-22-C*
LIAS1/0-14-L*
LIAS250-56-Q*
Set Screw
Material
Stainless Steel
Stainless Steel
Stainless Steel
Zinc Plated Steel
Zinc Plated Steel
Conductor Size
Range (AWG)
#14 SOL – #4 STR
#14 SOL – #4 STR
#14 SOL – #4 STR
#14 SOL – 1/0 STR
#6 SOL – 250 STR
Stud Hole Size
(In.)
0.22
0.22
0.22
0.27
0.33
Hex Key Size
(In.)
**
**
**
**
1/4
Figure Dimensions
(In.)
L
1.16
1.16
1.06
1.50
2.20
W
0.39
0.39
0.39
0.61
0.80
H
0.87
0.87
0.78
1.10
1.70
Std.
Pkg.
Qty.
100
100
100
50
25
Tin-Plated Copper body
Tin-Plated Aluminum Body*
*Not DB Rated
**Uses slotted head set screw.
The use of Panduit oxide inhibiting joint compound (CMP) is recommended for pad and conductor connections.
5
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