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3M M4-12R/SK Non-Insulated Ring Terminal - Non-Insulated Ring Terminals
3MNon-Insulated Ring Terminals

3M M4-12R/SK Non-Insulated Ring Terminal

The 3M Ring Terminal: Bare (MPN M4-12R/SK) is a non-insulated ring terminal rated for 1,000 V, featuring a brazed barrel and seam. It accommodates a 1/2 in stud size and 4 AWG wire sizes, supplied by 3M.

SKU 3G-OTH-20200

Also listed as: M412RSK · M4 12R SK · M4-12R-SK

Brand
3M
Item
M4-12R/SK Non-Insulated Ring Terminal
Part Number
M4-12R/SK
Category
Non-Insulated Ring Terminals
Available to Order
Also known as:M4-12R/SK3M
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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
M4-12R/SK
Type
1,000 V, Brazed Barrel & Seam
Stud Size
1/2 in
Wire Sizes
4 AWG to 4 AWG

Technical Documents

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

Product Description

The 3M Ring Terminal: Bare (MPN M4-12R/SK) is a non-insulated ring terminal rated for 1,000 V, featuring a brazed barrel and seam. It accommodates a 1/2 in stud size and 4 AWG wire sizes, supplied by 3M.

Frequently Asked Questions

What is the 3M M4-12R/SK ring terminal used for?

The 3M M4-12R/SK is a non-insulated ring terminal used for high-current electrical connections in industrial power distribution, control panels, and heavy equipment. It accommodates 4 AWG wire and a 1/2 in stud, rated up to 1,000 V, with a brazed barrel and seam for reliable conductivity.

What are the specifications of the 3M M4-12R/SK ring terminal?

The 3M M4-12R/SK is a bare, non-insulated ring terminal with a 1/2 in stud size, accepting 4 AWG to 4 AWG wire. It is rated for 1,000 V and features a brazed barrel and seam. The manufacturer part number is M4-12R/SK, and it is part of 3M's ring terminal line.

Where to buy 3M M4-12R/SK ring terminals worldwide?

3G Electric supplies the 3M M4-12R/SK ring terminal worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this 3M terminal globally.

How to install a 3M M4-12R/SK ring terminal?

To install the 3M M4-12R/SK, strip 4 AWG wire to the recommended length, insert into the brazed barrel, and crimp using a tool matched to the terminal size. Ensure the 1/2 in stud hole aligns with the connection point. Follow standard electrical safety practices for high-voltage terminations.

Used in

Common applications for 3M
Electrical maintenance — 3M Super 33+ electrical tape for insulating splices and bundling wires in control circuits.
Mining cable repair — 3M molded resin pouch for coating cable jackets in mine and portable cable applications.
Utility cable splicing — 3M cold shrink splice kit rated for 15 kV for insulating and repairing power cables.
Industrial wire harnessing — 3M 2520 series varnished cotton cloth tape for abrasion resistance in wire harnessing.
Structural bonding — 3M DP8005 acrylic adhesive for bonding plastics, metals, and composites in assembly operations.
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 non-insulated ring terminals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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