Underground Wire Connectors

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For Wire Gauge

Wire Connection Method

Wire Construction

Color

Grip Type

Maximum Wire Combination

One 6-Ga. Wire with One 8-Ga. Wire

One 8-Ga. Wire with One 12-Ga. Wire

Three 10-Ga. Wires

Three 12-Ga. Wires

Two 10-Ga. Wires with Two 14-Ga. Wires

Two 14-Ga. Wires with One 18-Ga. Wire

Insulation

Performance

Material

Insulation Color

Number of Wires

Wire Material

Terminal Material

Splice Type

Application

Voltage

Certification

Maximum Temperature

Insulation Material

Minimum Wire Combination

Four 14-Ga. Wires

Four 18-Ga. Wires

Three 16-Ga. Wires with One 22-Ga. Wire

Three 20-Ga. Wires

Two 14-Ga. Wires

Two 18-Ga. Wires

Two 20-Ga. Wires with One 22-Ga. Wire

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

REACH

RoHS

DFARS Specialty Metals

Terminal Finish

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20 Products

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Splice Type

Butt Splice

Connect wires end to end to extend or repair a run

2 products

Wire Connector

Join wires side by side everywhere from control panels to light fixtures

7 products

Splice Type

Split-Bolt Splice

Tighten a hex nut for a strong hold on large wires

11 products

Wire Connection Method

Screw On

Tighten with a screw instead of crimping so you can reuse connectors

13 products

Underground Twist-On Wire Connectors

A go-to for underground feeder lines, these connectors stand up to pressure and wear when buried in the polypropylene cover. Strip your wires and slide them side by side into the opening. To connect, twist the easy-grip wing for a tight grip on the wire without straining your arm.

	For Wire			Wire Combination		Insulation
	Ga.	Construction	Material	Min.	Max.	Color	Material	Terminal Material	Filler Material	Max. Temp., ° F	Max. Voltage, V AC	Certification	Reusable	Pkg. Qty.		Pkg.
Easy-Grip Wing with Polypropylene Cover for UF Cable



		18 to 10	Solid, Stranded	Copper	Two 18-Ga. Wires	Three 10-Ga. Wires	Red/Yellow	Polypropylene	Tin-Plated Steel	Grease	120	600	UL Listed	No	2	6879K88	000000

Underground Heat-Shrink Set Screw Butt Splices


Style A	Style B

Protect utility, irrigation, and other underground connections from groundwater, rocky soil, and mechanical stress. After tightening the set screws, slide the heavy-wall polyolefin tube onto the splice. Then, apply a heat gun to shrink the tube and completely seal out moisture and dirt.

		For Wire
	Style	No. of	Ga.	Construction	Material	For Cable Designation	Insulation Color	Terminal Material	Max. Temp., ° F	Max. Voltage	Shrink Temp., ° F	Certification		Each
Polyolefin Insulation



		A	2	8 to 2	Solid, Stranded	Aluminum, Copper	—	Black	Tin-Plated Aluminum	190	600V AC 600V DC	250	UL Listed	7924K12	000000


		B	3	14 to 8	Solid, Stranded	Copper	UF	Black	Tin-Plated Copper	190	600V AC 600V DC	250	UL Listed	7924K11	00000

Moisture-Resistant Twist-On Wire Connectors


Straight Grip	Low-Profile Easy-Grip Wing

Unlike other twist-on connectors, a silicone filler repels moisture to keep your wire dry and conductive. These connectors twist on and off your wire to save time over crimp-on connectors. You can bury them in soil to power everything from irrigation systems to landscape lights. The connectors have a lower maximum voltage when buried.

Low-Profile Easy-Grip Wing—Our slimmest twist-on connector is the best fit for crowded outlet boxes and other cluttered areas.

	For Wire			Wire Combination		Insulation
	Ga.	Construction	Material	Min.	Max.	Color	Material	Terminal Material	Filler Material	Max. Temp., ° F	Max. Underground Voltage	Max. Voltage, V AC	Certification	Reusable	Pkg. Qty.		Pkg.
Straight Grip



		20 to 12	Solid, Stranded	Copper	Three 20-Ga. Wires	Three 12-Ga. Wires	Blue	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	UL Listed	No	20	70615K79	000000


		Low-Profile Easy-Grip Wing



				22 to 12	Solid, Stranded	Copper	Two 20-Ga. Wires with One 22-Ga. Wire	Two 14-Ga. Wires with One 18-Ga. Wire	Gray	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	CSA Certified, UL Listed	No	20	70615K71	00000


				22 to 8	Solid, Stranded	Copper	Three 16-Ga. Wires with One 22-Ga. Wire	One 8-Ga. Wire with One 12-Ga. Wire	Blue	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	CSA Certified, UL Listed	No	2	70615K11	0000
				18 to 10	Solid, Stranded	Copper	Four 18-Ga. Wires	Three 10-Ga. Wires	Yellow	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	CSA Certified, UL Listed	No	10	70615K64	00000
				14 to 10	Solid, Stranded	Copper	Two 14-Ga. Wires	Two 10-Ga. Wires with Two 14-Ga. Wires	Red	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	CSA Certified, UL Listed	No	10	70615K65	00000
				14 to 6	Solid, Stranded	Copper	Four 14-Ga. Wires	One 6-Ga. Wire with One 8-Ga. Wire	Blue	Polypropylene	Zinc-Plated Steel	Silicone	220	30V AC 30V DC	600	CSA Certified, UL Listed	No	2	70615K67	0000

Split-Bolt Splices

Slide large wires in and tighten the hex nut for a strong, secure hold between the wire and screw. Loosen the hex to make a quick adjustment or to reuse the splice elsewhere. These splices are easy to use, but the connection isn't fully protected by the body of the splice.

	For Wire			For Tap Wire
	Ga.	Construction	Material	Min. Ga.	Construction	Wire Slot Wd.	Head Wd.	Terminal Material	Max. Temp., ° F	Max. Voltage, V AC	Certification		Each
Noninsulated



		16 to 8	Stranded	Copper	16	Stranded	0.15"	0.38"	Copper	190	600	CSA Certified, UL Listed	6921K56	00000


		10 to 6	Solid	Copper	16	Solid	0.17"	0.5"	Copper	190	600	CSA Certified, UL Listed	6921K57	0000
		8 to 4	Solid, Stranded	Copper	16	Solid	0.22"	0.56"	Copper	190	600	CSA Certified, UL Listed	6921K58	0000
		6 to 2	Solid, Stranded	Copper	14	Stranded	0.33"	0.69"	Copper	190	600	CSA Certified, UL Listed	6921K61	0000
		6 to 2	Solid, Stranded	Copper	12	Solid	0.33"	0.69"	Copper	190	600	CSA Certified, UL Listed	6921K591	0000
		4 to 1/0	Solid, Stranded	Copper	14	Solid	0.38"	0.75"	Copper	190	600	CSA Certified, UL Listed	6921K62	0000
		2 to 2/0	Solid, Stranded	Copper	14	Stranded	0.42"	0.81"	Copper	190	600	CSA Certified, UL Listed	6921K63	00000
		2 to 3/0	Solid, Stranded	Copper	12	Solid	0.47"	0.88"	Copper	190	600	CSA Certified, UL Listed	6921K64	00000
		1/0 to 250 MCM	Solid, Stranded	Copper	10	Solid	0.58"	1"	Copper	190	600	CSA Certified, UL Listed	6921K65	00000
		4/0 to 350 MCM	Stranded	Copper	8	Solid	0.75"	1.5"	Copper	190	600	CSA Certified, UL Listed	6921K66	00000
		250 to 500 MCM	Stranded	Copper	8	Solid	0.83"	1.63"	Copper	190	600	CSA Certified, UL Listed	6921K67	00000