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3M Compression Lugs: For 500 kcmil, Stranded Wire, 1/2 in Stud Size, Long - Two-Hole Compression Lugs
3MTwo-Hole Compression Lugs

3M Compression Lugs: For 500 kcmil, Stranded Wire, 1/2 in Stud Size, Long

The 3M Compression Lugs (MPN 31166) are two-hole compression lugs designed for 500 kcmil stranded wire. These lugs feature a long copper barrel and a 1/2 in stud size, with no inspection hole. They are suitable for…

SKU 3G-OTH-17416

Brand
3M
Item
Compression Lugs: For 500 kcmil, Stranded Wire, 1/2 in Stud Size, Long
Category
Two-Hole Compression Lugs
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

3M
Manufacturer Part Number
31166
Type
Stranded Wire, Long, Copper Barrel
Stud Size
1/2 in
For Wire Type
Stranded
For Wire Sizes
500 kcmil
Inspection Hole
No

Technical Documents

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3M Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 3M Compression Lugs (MPN 31166) are two-hole compression lugs designed for 500 kcmil stranded wire. These lugs feature a long copper barrel and a 1/2 in stud size, with no inspection hole. They are suitable for terminating large-gauge stranded conductors in industrial electrical applications.

Frequently Asked Questions

What are 3M 31166 compression lugs used for?

3M 31166 compression lugs terminate 500 kcmil stranded copper wire in industrial electrical panels, switchgear, and heavy machinery. Their two-hole, long-barrel design provides secure, high-current connections for power distribution and motor control applications.

What are the specifications of 3M 31166 compression lugs?

The 3M 31166 is a two-hole compression lug for 500 kcmil stranded wire with a 1/2 in stud size. It has a long copper barrel and no inspection hole. The lug is rated for stranded conductors and is manufactured by 3M under MPN 31166.

Where to buy 3M 31166 compression lugs worldwide?

3G Electric supplies 3M 31166 compression lugs worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other 3M electrical termination products.

How to install 3M 31166 compression lugs?

Strip the 500 kcmil stranded wire to the barrel depth, insert fully, and crimp with a hydraulic tool and die matched to the lug size. No inspection hole means you must verify full insertion by marking the wire. Follow 3M's crimp specifications for reliable connections.

Used in

Common applications for 3M
Industrial process water filtration — 3M solid polypropylene cartridge (e.g., RT10Q16G20NN, 7 micron) for sediment removal in manufacturing lines.
Cooling tower pre-treatment — 3M string-wound cartridge (e.g., RT39B16G20NN, 30 micron) to protect heat exchangers from particulate fouling.
Food and beverage rinse water — 3M 1 micron solid cartridge (RT10Y16G20NN) for fine filtration to meet quality standards.
Chemical processing feed water — 3M 27 micron solid cartridge (RT30L16G20NN) for high-flow sediment reduction upstream of sensitive equipment.
Wastewater effluent polishing — 3M 2 micron string-wound cartridge (RT09Y16G20NN) for final particulate removal before discharge or reuse.
Pharmaceutical utility water — 3M 0 micron string-wound cartridge (RT09L16G20NN) for sub-micron filtration in critical systems.

3M Products

3G Electric supplies 3M two-hole compression lugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
Compression Lugs: For 600 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31168)
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