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| Parallel Groove Clamps |
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The geometry of the ACA Universal Groove represents an engineering achievement: an optimum shape for both electrical and mechanical efficiency for a range of conductor sizes. ACA's Parallel Groove Clamps provide positive alignment. The extended lip aligns the cap as the bolt is tightened. The clamps can be applied "hot" without taking them apart. There's no chance of losing nuts and washers, and no need to fumble for loose parts.
The electrical conductivity of heavy-duty 480 series clamps exceeds that of the conductor. Contact length and width of the clamping surfaces provides maximum conductivity. Each clamp is designed and tested for the wire sizes included in the range of its grooves. The bolts are made from high-strength aluminum alloy. They maintain high contact pressure during heating and cooling cycles. In addition, the coefficient of expansion closely matches that of the conductor. All Alcoa Parallel Groove Clamps can be pre-filled with joint compound. From selection and ordering through installation, ACA clamps and connectors are designed for maximum simplicity and reliability.
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Clamp Types:
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U-Bolt Clamps (Series 580)
Catalog 580 Series U-Bolt Clamps are heavy duty, high efficiency connectors with ACA full-capacity grooves. The U-Bolts are high strength aluminum alloy for excellent thermal expansion and corrosion resistance characteristics. |
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Center Bolt Clamps (Series 480)
Catalog 480 Series Center Colt Clamps are a multiple bolt heavy duty universal groove design which can handle the full electrical load of the conductor. They offer the convenience of installation without any loose parts. Catalog 480 Clamps are made from extruded high strength aluminum alloy and can be taped easily. Additionally, they have a minimum bulk, which results in a neat appearance. |
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Distribution Parallel Groove Clamps (Series 390 and 490)
Catalog 390 and Catalog 490 Series Distribution Parallel Groove Clamps with a single bolt accomodate a range of conductors in each groove. This type of clamp is commonly used for service drop connections and as a tap from large to relatively small conductors. |
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