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3M Ring Terminal: Bare, #4 Stud Size, 22 AWG to 18 AWG Wire Sizes, 600 V - Non-Insulated Ring Terminals
3MNon-Insulated Ring Terminals

3M Ring Terminal: Bare, #4 Stud Size, 22 AWG to 18 AWG Wire Sizes, 600 V

The 3M Ring Terminal: Bare (MPN MU18-4R/SK) is a non-insulated ring terminal with a #4 stud size, rated for 600 V and 22 AWG to 18 AWG wire sizes, featuring a butted barrel and seam design. 3G Electric interprets…

SKU 3G-OTH-18380

Also listed as: MU184RSK · MU18 4R SK · MU18-4R-SK

Brand
3M
Item
Ring Terminal: Bare, #4 Stud Size, 22 AWG to 18 AWG Wire Sizes, 600 V
Category
Non-Insulated Ring Terminals
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

3M
Manufacturer Part Number
MU18-4R/SK
Type
#4 Stud Size, 600 V, Butted Barrel & Seam
Wire Sizes
22 AWG to 18 AWG

Technical Documents

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

Product Description

The 3M Ring Terminal: Bare (MPN MU18-4R/SK) is a non-insulated ring terminal with a #4 stud size, rated for 600 V and 22 AWG to 18 AWG wire sizes, featuring a butted barrel and seam design. 3G Electric interprets demand and delivers this genuine 3M terminal across 14 industrial departments, with specialist depth in electrical components as an authorised distributor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a 3M non-insulated ring terminal used for?

A 3M non-insulated ring terminal creates a secure, permanent electrical connection between a wire and a #4 stud. It is used in control panels, industrial machinery, and power distribution where reliable grounding or termination is required at 600 V.

What are the specifications of the 3M MU18-4R/SK ring terminal?

The 3M MU18-4R/SK is a bare, non-insulated ring terminal with a #4 stud size, accepting 22 AWG to 18 AWG wire. It features a butted barrel and seam design, rated for 600 V. The manufacturer part number is MU18-4R/SK.

Where to buy 3M ring terminals for worldwide delivery?

3G Electric supplies 3M ring terminals like the MU18-4R/SK to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other 3M electrical connection products.

How to install a 3M non-insulated ring terminal?

Strip the wire to the recommended length, insert it into the barrel, and crimp using a tool matched to the 22–18 AWG range. For the 3M MU18-4R/SK, ensure the butted seam is fully compressed. No heat shrink is needed since the terminal is bare.

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 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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