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3M Two-Hole Compression Lug, 500 kcmil, 1/2 in Stud, Long Copper Barrel - Two-Hole Compression Lugs
3MTwo-Hole Compression Lugs

3M Two-Hole Compression Lug, 500 kcmil, 1/2 in Stud, Long Copper Barrel

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
Two-Hole Compression Lug, 500 kcmil, 1/2 in Stud, Long Copper Barrel
Part Number
31166
Category
Two-Hole Compression Lugs
Available to Order
Also known as:311663M
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

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

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Cable protection — 3M heat shrink tubing for sealing and protecting electrical connections from moisture and abrasion.
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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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