Can a 3m 314-box idc connector be used to splice 2 speaker wires together. i need to extend my speakers wires so i can move my amp. thanks...

Yes you can use them connecting speaker wires.

Will this work for 18 gauge underground dog fence? Also rewiring a horse trailer?

it will work for that gauge size. The things you will want to avoid is any frequent change of tension on the wire, and of course having it protected. It's moisture resistant, not waterproof.

UL listed and approved?

The Part Number 3M314 Scotchlok is UL LIsted

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3M Scotchlok Electrical IDC 314-BOX, 22-14 AWG, Blue, Pack of 50

3M Scotchlok Electrical IDC 314-BOX, 22-14 AWG, Blue, Pack of 50

Product ID: 18778940

Details

Color
Blue
Connector Type
Idc
Contact Material
Brass
Insulation Material
Nylon
Terminal
Idc

⚡600-1000V voltage rating

🔥Flame retardant nylon insulation

🛡️Corrosion-resistant tin-plated brass

B/.113

Duties & taxes included

In stock

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Description

🔌 Connect like a pro, seal like a boss!

POWER UP WITH CONFIDENCE - Rated for up to 1000 volts, perfect for building wiring, signs, and fixtures demanding reliability.
CERTIFIED FOR PEACE OF MIND - UL Listed, CSA Certified, and RoHS compliant—trusted by professionals worldwide for industrial-grade quality.
EFFORTLESS NO STRIP INSTALLATION - Self-stripping IDC design saves time and guarantees a moisture-resistant, secure connection every time.
BUILT TO LAST IN TOUGH ENVIRONMENTS - Tin-plated brass element ensures superior conductivity and corrosion resistance for long-term performance.
SEAL THE DEAL WITH PRO GRADE FLAME RESISTANCE - Flame retardant nylon insulation keeps connections safe and durable under heat stress.

The 3M Scotchlok Electrical IDC 314-BOX is a pack of 50 flame retardant, nylon-insulated wire connectors designed for 22-14 AWG copper wires. Featuring tin-plated brass elements for excellent conductivity and corrosion resistance, these connectors support up to 600 volts for building wire and 1000 volts for signs and fixtures. Their self-stripping, moisture-resistant design ensures quick, reliable connections, certified by UL, CSA, and RoHS standards—making them the go-to choice for professional-grade electrical installations.

Specifications

ASIN	B00P1UENB6
Best Sellers Rank	#15,655 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in IDC Electrical Terminals
Brand Name	3M
Color	Blue
Connector Gender	Female
Connector Type	Idc
Contact Material	Brass
Customer Reviews	4.8 4.8 out of 5 stars (1,081)
Global Trade Identification Number	00054007092308
Included Components	IDC Connectors
Insulation Material Type	Nylon
Item Dimensions L x W x H	11"L x 6"W x 10.25"H
Item Weight	24 g
Manufacturer	3M
Material Type	Brass
Maximum Voltage	1000 volts
Model	80000209561
Number of Items	50
Part Number	314-POUCH
Specification Met	CSA, RoHS, UL
Temperature Rating	221 degree fahrenheit
Terminal	Idc
UPC	054007092308
Unit Count	50 Count

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