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3M Compression Lugs: For 250 kcmil, Stranded Wire, 1/2 in Stud Size, Long - Two-Hole Compression Lugs
3MTwo-Hole Compression Lugs

3M Compression Lugs: For 250 kcmil, Stranded Wire, 1/2 in Stud Size, Long

The 3M 31149 is a two-hole compression lug designed for 250 kcmil stranded copper wire, with a 1/2 in stud size and a long barrel. It features no inspection hole and is manufactured by 3M under part number 31149.

SKU 3G-OTH-16389

Brand
3M
Item
Compression Lugs: For 250 kcmil, Stranded Wire, 1/2 in Stud Size, Long
Category
Two-Hole Compression Lugs
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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
31149
Type
Stranded Wire, Long, Copper Barrel
Stud Size
1/2 in
For Wire Type
Stranded
For Wire Sizes
250 kcmil
Inspection Hole
No

Technical Documents

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

Product Description

The 3M 31149 is a two-hole compression lug designed for 250 kcmil stranded copper wire, with a 1/2 in stud size and a long barrel. It features no inspection hole and is manufactured by 3M under part number 31149.

Frequently Asked Questions

What is the 3M 31149 compression lug used for?

The 3M 31149 is a two-hole compression lug used to terminate 250 kcmil stranded copper wire in industrial power distribution, switchgear, and heavy equipment connections. It provides a secure, low-resistance joint for high-current applications up to 850 °C rated insulation systems.

What are the specifications of the 3M 31149 compression lug?

The 3M 31149 is a two-hole compression lug for 250 kcmil stranded copper wire with a 1/2 in stud size and a long copper barrel. It has no inspection hole and is rated for use with 3M-brand crimping tools. The lug is designed for reliable, high-conductivity terminations in industrial environments.

Where to buy the 3M 31149 compression lug worldwide?

3G Electric supplies the 3M 31149 compression lug worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver genuine 3M components to any country.

How to install the 3M 31149 compression lug?

Strip the 250 kcmil stranded wire to the barrel length, insert fully, and crimp using a 3M-recommended hydraulic or manual crimping tool with the correct die. Ensure the lug is aligned with the stud hole. No inspection hole is present, so verify full insertion by marking the wire before crimping.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Compression Lugs: For 350 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31156)
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Compression Lugs: For 350 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31156)
Compression Lugs: For 500 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31166)
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Compression Lugs: For 500 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31166)
Compression Lugs: For 600 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31168)
3M
Compression Lugs: For 600 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31168)
Compression Lugs: For 1000 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31178)
3M
Compression Lugs: For 1000 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31178)
Compression Lugs: For 300 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31153)
3M
Compression Lugs: For 300 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31153)
Compression Lugs: For 4 AWG, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31122)
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Compression Lugs: For 4 AWG, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31122)

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Compression Lug: For 350 kcmil, 1/2 in Stud Size, Std, Aluminum Barrel (MPN 13665)
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Compression Lugs: For 400 kcmil, Stranded Wire, 1/2 in Stud Size, Long, Copper Barrel (MPN 31160)
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