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3M Compression Lugs: 3/8 in Stud Size, 4 AWG For Wire Sizes, Stranded Wire Type - One-Hole Compression Lugs
3MOne-Hole Compression Lugs

3M Compression Lugs: 3/8 in Stud Size, 4 AWG For Wire Sizes, Stranded Wire Type

The 3M 30021 Compression Lug is a one-hole, stranded-wire type lug for 4 AWG copper conductors with a 3/8 in stud size. This standard copper lug is designed for reliable electrical terminations.

SKU 3G-OTH-622717

Brand
3M
Item
Compression Lugs: 3/8 in Stud Size, 4 AWG For Wire Sizes, Stranded Wire Type
Category
One-Hole Compression Lugs
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Technical Specifications

3M
Manufacturer Part Number
30021
Type
Stranded Wire Type, Std, Copper
For Wire Sizes
4 AWG
View Full Spec Sheet

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

Product Description

The 3M 30021 Compression Lug is a one-hole, stranded-wire type lug for 4 AWG copper conductors with a 3/8 in stud size. This standard copper lug is designed for reliable electrical terminations.

Frequently Asked Questions

What is the 3M 30021 compression lug used for?

The 3M 30021 compression lug is used to terminate 4 AWG stranded copper wire to a 3/8 in stud, creating a reliable electrical connection in industrial power distribution, control panels, and heavy equipment. 3G Electric supplies this lug and handles worldwide logistics and customs clearance.

What are the specifications of the 3M 30021 compression lug?

The 3M 30021 is a one-hole compression lug for 4 AWG stranded copper wire with a 3/8 in stud size. It is made of copper, standard type, and is uninsulated. The manufacturer part number is 30021. 3G Electric sources this genuine 3M lug for global delivery.

Where to buy 3M 30021 compression lugs worldwide?

3G Electric supplies the 3M 30021 compression lug to customers worldwide. We handle full logistics, customs documentation, and delivery to your site. Contact us for pricing and lead time on this genuine 3M part. We source across 14 industrial departments to meet your needs.

How to install a 3M 30021 compression lug?

Strip the 4 AWG stranded wire to the recommended length, insert it fully into the lug barrel, and crimp using the correct die for 3M compression tools. Ensure the lug seats flat against the 3/8 in stud. 3G Electric provides technical support for proper termination practices.

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 one-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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