Eaton B321-4HDG Beam Clamp - cULus Listed
Part Number: B321-4HDG
Quick Summary
Eaton B321-4HDG beam clamps secure mounting of electrical strut systems on beams used in industrial electrical installations. When misalignment, vibration, or over-tightening threatens uptime, a robust clamp with precise engagement reduces rework and costly downtime. The part carries cULus Listed approval with UL/CSA safety alignment, helping you meet regulatory requirements in electrical and data-center environments. With its 1800 lb load capacity and 5/8-11 thread, this clamp supports reliable, scalable installations while minimizing part variety and inventory.
Product Information
Extended Description
B321-4HDG Eaton: Eaton B-Line series beam clamps, 3.7188"Hx3.25"Lx0.6250"W, Steel, 1800 load cap, 5/8"-11 rod size, 5/8"-11 screw size, 0.313"beam thickness
Product Name
Eaton B-Line series beam clamps
Catalog Number
B321-4HDG
UPC
781011531447
Product Length/Depth
3.25 in
Product Height
3.71875 in
Product Width
0.625 in
Product Weight
2.39 lb
Certifications
cULus Listed
Beam thickness
0.313 in
Set screw size
5/8"-11
Special features
Safety factor of 5, setscrew included
Thread/rod size
5/8"-11
Type
Beam clamp
Load capacity
1800 lb
Material
Steel
Feature → Business Impact → Application: 1800 lb load capacity enables secure support for heavy fixtures, reducing failure risk and maintenance cycles; Application: supports data centers, manufacturing lines, and industrial conduit runs while maintaining neutral, vibration-resistant support. Feature → Business Impact → Application: Steel construction delivers durability and long service life, lowering lifecycle costs and downtime from worn components; Application: suited for high-cycle environments and frequent rearrangements. Feature → Business Impact → Application: 5/8"-11 thread with included setscrew simplifies alignment and retention, improving installation speed and reliability; Application: ideal for standardized B-Line strut systems across facilities. Feature → Business Impact → Application: Precise dimensions—3.71875 in height, 3.25 in length, 0.625 in width, and 0.313 in beam thickness—ensure compatibility with common beam profiles; Application: reduces need for custom adapters in retrofits. Feature → Business Impact → Application: cULus Listed certification and a safety factor of 5 provide regulatory confidence and operational reliability; Application: appropriate for electrical installations in regulated environments such as data centers and manufacturing floors.
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FAQs
Yes. The B321-4HDG uses a 5/8-11 thread and includes a setscrew for secure retention, making it compatible with standard 5/8-11 rods and most Eaton B-Line strut systems for quick, reliable installations.
The clamp has an 1800 lb load capacity with a safety factor of 5, providing a generous reserve for dynamic loads and shock. This combination supports long service life in vibration-prone environments while maintaining regulatory compliance.
The data specifies steel construction and cULus listing, but it does not provide an IP rating or outdoor-specific protection. For outdoor or harsh environments, verify additional protection or enclosure strategies and consider environment-specific ratings before use.
The clamp is cULus Listed, indicating compliance with UL/CSA electrical safety standards. This supports regulatory approvals for electrical installations in regulated facilities and helps simplify procurement for code-compliant projects.
The durable steel design, high load capacity, and included setscrew reduce rework and maintenance needs. In practice, this translates to lower downtime during installations, faster retrofit cycles, and predictable lifecycle costs in facilities relying on B-Line strut systems.