MacLean Senior Industries SI-2174 KUL Bonding Clamp
Mfr # SI-2174
Secure your aerial infrastructure with the MacLean SI-2174 KUL Bonding Clamp, now available at Rackfinity. Engineered to deliver a rock-solid, code-compliant connection, this industrial-grade clamp is the go-to solution for bonding copper grounding wire directly to aerial messenger strands. Designed for high-stakes telecom, utility, and broadband deployments, the SI-2174 establishes an airtight electrical and mechanical bond that shields critical networks from devastating power surges and environmental degradation.
Constructed from a premium copper alloy and finished with an advanced tin plating, it guarantees maximum conductivity and structural integrity under the harshest outdoor conditions.
Performance Features & Benefits
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Drop-Proof Field Efficiency: Maximize crew productivity and eliminate wasted hardware. The SI-2174 features a smart, capturing design that allows full installation without backing out the bolt, preventing dropped or lost parts mid-climb.
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Galvanic Corrosion Protection: The high-grade tin-plated finish safely bridges dissimilar metals. Connect #6 copper wire to 1/4" or 5/16" galvanized steel strands without worrying about corrosive degradation over time.
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No Specialized Tools Required: Keep deployment simple. Field technicians can rapidly torque the clamp down using standard lineworker tools or a standard terminal wrench.
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Industrial-Grade Resilience: Forged from a rugged copper/bronze alloy, this clamp is built to endure extreme mechanical stress, continuous line vibrations, and punishing weather elements.
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Fully Certified Compliance: Protect your deployment against code violations. The SI-2174 is UL and cUL Listed, meeting strict safety and regulatory standards for infrastructure grounding.
Construction
Connector Body: High Strength Bronze Alloy | Stud: Steel | Plating: Tin-Plated Copper Alloy
Mechanical Range
Strand: 5/16" or 1/4" Galvanized Steel | Solid: No. 6 AWG Copper | Stud: 5/16-18
Dimensions
Reference: 1.250" (height) x 1.375" x 1.063"
Regulatory
Complies with UL Standard 467 | UL/CUL Approval File E137532
Custom Data Center Grounding Solutions Tailored to Your Specs:

Streamline your deployment and ensure maximum uptime with precision-engineered grounding cables built to your exact infrastructure requirements. We take the labor out of data center staging so your team can focus on bringing racks online.
Our Custom Capabilities Include:
- Precision Cutting & Stripping: Tailored lengths to eliminate slack and maintain clean rack hygiene.
- Custom Lug Crimping: Built to your specific hole sizing, spacing, and hardware requirements (two-hole, single-hole lugs, or specialized clamps).
- Kitting & Bundling: Organized, labeled, and bundled by rack, row, or zone for rapid on-site installation.
Ready to configure your deployment? Contact us today for a customized quote based on your specifications.