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Ground Rod Clamps

Part No.
Ground Rod Size
Conductor Range
Box Qty.
Approx. Box
Wt. (lbs.)
Add to BOM ◆
300
1/2"
#4 Str - 4/0 AWG
10
5
Add to BOM ◆
301
5/8"
#6 Str - 4/0 AWG
10
5
◆ BOM = Bill of Materials
• Heavy duty bronze ground rod clamps.
• Provides more than 2 inches of contact area with cables and
ground rod.
• Two stainless steel cap screws secure the cable to the ground
electrode for a positive electrical connection.
• UL 96 listed. UL 50H2 is Harger's identification number.
Ground Rod Clamps

TECHNICAL NOTES:
• Ground Rod Clamps for lightning protection systems require 1-1/2" of surface contact between conductor
and ground rod.




Universal Ground Rod Clamp
Part No.
Ground Rod Size
Conductor Range
Box Qty.
Approx. Box Wt. (lbs.)
Add to BOM ◆
302U
1/2"
#6 Sol - 350 MCM
5
5
Add to BOM ◆
302U
5/8"
#6 Sol - 350 MCM
5
5
Add to BOM ◆
302U
3/4"
#2 Sol - 250 MCM
5
5
◆ BOM = Bill of Materials
• Heavy duty bronze ground rod clamps.
• Provides over 1-1/2 inches of contact area with cables andground rod.
• Two stainless steel cap screws secure the cable to the ground electrode for a positive electrical connection.
Ground Rod Clamps

TECHNICAL NOTES:
• Ground Rod Clamps for lightning protection systems require 1-1/2" of surface contact between conductor
and ground rod.




Part No.
Ground Rod Size
Conductor Range
Box Qty.
Approx. Box
Wt. (lbs.)
UL Mark
Add to BOM ◆
300LD
1/2"
10 SOL - #2 STR
10
2
Yes
Add to BOM ◆
301LD
5/8"
10 SOL - #2 STR
10
2
Yes
Add to BOM ◆
302LD
3/4"
10 SOL - #2 STR
10
2
Yes
Add to BOM ◆
303LD
1"
8 SOL - #4/0
10
6
Yes
◆ BOM = Bill of Materials
• Light duty ground rod clamp.
• Bronze cap screw secures the cable to the ground electrode.
• Commonly called acorn or tear drop clamp.
Ground Rod Clamps

APPLICATION NOTES:
• Ground Rod Clamps for lightning protection systems require 1-1/2" of surface contact between
conductor and ground rod.
• Light duty series (300LD, 301LD, 302LD & 302UGRC) acceptable for electrical grounding, but not
lightning protection.




Universal Ground Rod Clamp
Part No.
Ground Rod Size
Conductor Range
Box Qty.
Approx. Box
Wt. (lbs.)
UL Listed*
Add to BOM ◆
302UGRC
3/8"
1/0 - 10 SOL
10
2
No
Add to BOM ◆
302UGRC
1/2"
1/0 - 10 SOL
10
2
Yes
Add to BOM ◆
302UGRC
5/8"
1/0 - 10 SOL
10
2
Yes
Add to BOM ◆
302UGRC
3/4"
1/0 - 8 SOL
10
2
Yes
◆ BOM = Bill of Materials
• Light duty ground rod clamp for securing cable to ground rod.
• Eliminates the need to inventory assorted different-size clamps.
• Replaces a wide range of products made for economy, standard duty, heavy
duty and extra heavy duty applications.
• Made from corrosion resistant silicon bronze.
• Accommodates 3/8" to 3/4" ground rods and #10 Solid to 1/0 Stranded
conductor.
• Tested to 300 inch-pounds.
* UL and CSA listed for Direct Burial.
Ground Rod Clamps

APPLICATION NOTES:
• Ground Rod Clamps for lightning protection systems require 1-1/2" of surface contact between
conductor and ground rod.
• Light duty series (300LD, 301LD, 302LD & 302UGRC) acceptable for electrical grounding, but not
lightning protection.




Part No.
Ground Rod Size
Conductor Range
Box Qty.
Approx. Box
Wt. (lbs.)
Add to BOM ◆
305
Up thru 1"
#6 AWG - 500 MCM
5
3
◆ BOM = Bill of Materials
• Bronze ground rod clamp features a stainless steel "U" bolt
for strength and corrosion resistance.
• Provides over 1-1/2" of contact between the ground
electrode and conductors.
• Accommodates two horizontal conductors thru 250 MCM.
• Accommodates one vertical conductor up to 500 MCM.
• Fits all ground rods through 1" diameter. Ideal for connecting
down conductors to ground loop conductors.
Ground Rod Clamps

APPLICATION NOTES:
• Ground Rod Clamps for lightning protection systems require 1-1/2" of surface contact between conductor
and ground rod.




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