CT-SL21-1000 Stacked Mechanical Lug, 2-Conductor 1-Hole Dual-Rated AL/CU (2) 500–1000 kcmil 1/2in, UL Listed | CT-SL21-1000
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SKU: CT-SL21-1000
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At a glance: CT-SL21-1000 is a dual-rated stacked mechanical lug for terminating up to 2 aluminum or copper conductors ((2) 500-1000 kcmil) with a reusable set-screw connection - no crimp tool or dies required. Machined from 6061-T6 aluminum alloy and electro tin plated for low contact resistance and corrosion protection. Standard termination hardware for load centers, panelboards, safety switches, transformers, and transfer switches.
Specifications
| Part number | CT-SL21-1000 |
|---|---|
| Conductor range | (2) 500-1000 kcmil (AL/CU dual rated) |
| Conductors | 2 |
| Mounting stud | 1/2 |
| Material / finish | 6061-T6 aluminum, electro tin plated |
| Category | Electrical connector |
| Configuration | 2 |
| Weight | 1.2 lb (est.) |
Why Pros Buy Direct from Conversions Tech
Quality-tested and UL Listed. Every product we carry is built to our specifications by certified manufacturing partners and quality-verified before it ships. UL/CSA listed where required, NEC compliant.
Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.
Real technical support. Need a torque spec, die reference, or an OEM quote? You’ll speak directly with the Conversions Tech engineering desk — not a script reader — for instant answers, custom kitting, and private-label options.
Fast US fulfillment. In-stock items ship same day from Oxnard, CA, by ground or expedited.
