GROUNDING CONNECTORS
Bronze Ground Clamp Connectors Type GMS
• Clamp is manufactured from high copper content alloy • Designed to clamp a single copper conductor to flat a surface or 1/4” thick bus bar • Furnished with silicon bronze bolt, nut, and lockwasher for corrosion resistance • Standard catalog items accommodate 1/4” bar; for other applications, specify bar thickness • Suitable for direct burial in earth or concrete • UL 467 listed
FIGURE DIMENSIONS (IN.)
CATALOG NUMBER GMS-1 GMS-2 GMS-3 GMS-4• GMS-5• GMS-6•
CONDUCTOR RANGE 8 Sol. - 4 Str. 4 Sol. - 2/0 Str.
BOLT SIZE
A
A
B
C
1.25 1.63 2.13 2.38 3.00 3.50
1.00 1.13 1.50 1.63 1.75 1.88
1.63 1.75 2.00 2.50 3.00 3.13
3/8 3/8 1/2 1/2 5/8 5/8
B
C
2/0 Sol. - 250 kcmil 300 - 500 kcmil 500 - 750 kcmil 750 - 1000 kcmil
• UL listing is limited to a maximum wire size of 250 kcmil
Bronze Ground Clamp Connectors Type GWL
• Clamp is manufactured from high copper content alloy • Designed to clamp a single copper conductor to flat a surface or 1/4” thick bus bar • Furnished with silicon bronze bolt, nut, and lockwasher for corrosion resistance • Conductor is gripped by looping around the clamping bolt in connector groove • Standard catalog items accommodate 1/4” bar; for other applications, specify bar thickness • Suitable for direct burial in earth or concrete • UL 467 listed
FIGURE DIMENSIONS (IN.)
CATALOG NUMBER
CONDUCTOR RANGE
BOLT SIZE
A
B
C
GWL-1 GWL-2 GWL-3 GWL-4 GWL-5 GWL-6 GWL-7
1.13 1.75 1.69 1.81 2.25 2.25 2.25
1.50 1.75 2.00 2.13 2.25 2.38 2.50
1.38 1.88 1.88 1.88 2.38 2.38 2.38
3/8 1/2 3/8 1/2 3/8 1/2 5/8
8 Str. - 4 Str.
3 Str. - 2/0 Str.
3/0 Str. - 250 kcmil
260
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