Welding Cable Wire Connectors

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73 Products

About Industry Designation for Cable Insulation

About NEMA Straight-Blade Plugs, Connectors, and Receptacles

About NEMA Plugs, Sockets, and Receptacles

About Extension Cords

Welding Cable Connectors

Deliver power to welding cable. Plugs lock into sockets with a cam action that pulls the two pieces together tightly. The housing resists oil.

Use lug adapters (sold separately) to connect welding plugs to the stud of a power supply.

For technical drawings and 3-D models, click on a part number.

Plugs

Current	Wire Connection Type	For Wire Gauge	For Cable OD	Housing Connection Type	OD	Lg.	Color	Temp. Range, °F		Each
250A	Screw Terminals	4-1/0	0.2"-0.5"	Push In	1.3"	5.9"	Black	-50° to 350°	0000000	000000
350A	Screw Terminals	1/0-2/0	0.32"-0.56"	Push In	1.4"	5.9"	Black	-50° to 350°	0000000	00000
500A	Screw Terminals	3/0-4/0	0.41"-0.63"	Push In	1.4"	5.9"	Black	-50° to 350°	0000000	00000

Sockets

Current	Wire Connection Type	For Wire Gauge	For Cable OD	Housing Connection Type	OD	Lg.	Color	Temp. Range, °F		Each
250A	Screw Terminals	4-1/0	0.2"-0.5"	Push In	1.3"	4.9"	Black	-50° to 350°	0000000	000000
350A	Screw Terminals	1/0-2/0	0.32"-0.56"	Push In	1.4"	4.9"	Black	-50° to 350°	0000000	00000
500A	Screw Terminals	3/0-4/0	0.41"-0.63"	Push In	1.4"	4.9"	Black	-50° to 350°	0000000	00000

Lug Adapters

Straight
Max. Current	Sleeve Material	Color	OD	For Stud Size	Max. Temp., °F		Each
250A	Bronze	Black	1.1"	1/2"	475°	000000	000000
500A	Bronze	Black	1.2"	1/2"	475°	000000	00000
45° Elbow
250A	Bronze	Black	1.1"	1/2"	475°	000000	00000
500A	Bronze	Black	1.2"	1/2"	475°	000000	00000

Welding Cable Connector Sets

Each set includes one plug and one socket. Plugs lock into sockets with a cam action that pulls the two pieces together tightly. The housing resists oil.

For technical drawings and 3-D models, click on a part number.

					Mated Housing
Current	Wire Connection Type	For Wire Gauge	For Cable OD	Housing Connection Type	Dia.	Lg.	Color	Temp. Range, °F		Each
250A	Screw Terminals	4-1/0	0.2"-0.5"	Push In	1.3"	9.7"	Black	-50° to 350°	0000000	000000
350A	Screw Terminals	1/0-2/0	0.32"-0.56"	Push In	1.4"	9.8"	Black	-50° to 350°	0000000	00000
500A	Screw Terminals	3/0-4/0	0.41"-0.63"	Push In	1.4"	9.8"	Black	-50° to 350°	0000000	00000

Straight-Blade Plugs, Sockets, and Receptacles

90° elbow plugs with a rotating face can be plugged in at any angle.

Receptacles for outlet boxes fit standard wall plates (not included).

Note: The current rating of your plug should not exceed that of your socket or receptacle.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA 6-50 Male

NEMA 10-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
6-50	250V AC	50A	3.1"	Screw Terminals	0.43"-1.31"	Gray	0000000	000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.6"	Screw Terminals	0.57"-1.26"	Yellow	0000000	00000

Three-Blade 90° Elbow Plugs

NEMA 6-50 Male

NEMA 10-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Features	Color		Each
6-50	250V AC	50A	3.1"	Screw Terminals	0.56"-1.31"	Rotating Face	Gray	0000000	000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.8"	Screw Terminals	0.56"-1.1"	__	Black	0000000	00000

Four-Blade Plugs

NEMA 14-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
14-50	125V AC/250V AC	50A	3.1"	Screw Terminals	0.43"-1.31"	Gray	0000000	000000

Four-Blade 90° Elbow Plugs

NEMA 14-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Features	Color		Each
14-50	125V AC/250V AC	50A	3.3"	Screw Terminals	0.63"-1.38"	Rotating Face	Black	0000000	000000

Three-Slot Sockets

NEMA 6-50 Female

NEMA 10-50 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
6-50	250V AC	50A	3.1"	Screw Terminals	0.43"-1.31"	Gray	0000000	000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.6"	Screw Terminals	0.43"-1.32"	Black	0000000	000000

Three-Slot Single Female Receptacles

NEMA 6-50 Female

NEMA 10-50 Female

Grounded
NEMA Style	Voltage	Current	Face Dia.	Wire Connection Type	Receptacle Terminal Location	Mounting Location	Color		Each
6-50	250V AC	50A	2.1"	Screw Terminals	Back	Outlet Box	Black	0000000	000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.1"	Screw Terminals	Back	Outlet Box	Black	000000	0000

Four-Slot Single Female Receptacles

NEMA 14-50 Female

Grounded
NEMA Style	Voltage	Current	Face Dia.	Wire Connection Type	Receptacle Terminal Location	Mounting Location	Color		Each
14-50	125V AC/250V AC	50A	2.1"	Screw Terminals	Back	Outlet Box	Black	0000000	000000

Premium Straight-Blade Plugs, Sockets, and Receptacles

Built to handle tough, repetitive-use applications, these are more durable than standard straight-blade connectors.

Receptacles for outlet boxes fit standard wall plates (not included).

Note: The current rating of your plug should not exceed that of your socket or receptacle.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA 10-50 Male

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
10-50	125V AC/250V AC	50A	2.9"	Screw Terminals	0.63"-1.22"	IP20	UL Listed, CSA Certified, UL 94 HB	Black	0000000	0000000

Three-Blade 90° Elbow Plugs

NEMA 6-50 Male

NEMA 10-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
6-50	250V AC	50A	2.7"	Screw Terminals	0.63"-1.19"	UL Listed, CSA Certified, UL 498	Black	0000000	0000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.7"	Screw Terminals	0.63"-1.19"	UL Listed, CSA Certified, UL 498	Black	0000000	000000

Four-Blade Plugs

NEMA 14-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
14-50	125V AC/250V AC	50A	2.9"	Screw Terminals	0.63"-1.31"	IP20	UL Listed, CSA Certified, UL 94 HB	Black	0000000	0000000

Four-Blade 90° Elbow Plugs

NEMA 14-50 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
14-50	125V AC/250V AC	50A	3.4"	Screw Terminals	0.63"-1.31"	UL Listed, CSA Certified, UL 498	Black	0000000	0000000

Three-Slot Sockets

NEMA 10-50 Female

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
10-50	125V AC/250V AC	50A	2.9"	Screw Terminals	0.63"-1.22"	IP20	UL Listed, CSA Certified, UL 94 HB	Black	0000000	0000000

Three-Slot Single Female Receptacles

NEMA 6-50 Female

NEMA 10-50 Female

Grounded
NEMA Style	Voltage	Current	Face Dia.	Wire Connection Type	Receptacle Terminal Location	Mounting Location	Environmental Rating	Specifications Met	Color		Each
6-50	250V AC	50A	2.1"	Screw Terminals	Back	Outlet Box	IP20	UL Listed, CSA Certified, UL 94 V-0	Black	0000000	000000
Non-Grounded
10-50	125V AC/250V AC	50A	2.1"	Screw Terminals	Back	Outlet Box	IP20	UL Listed, CSA Certified, UL 94 V-0	Black	0000000	00000

Four-Slot Single Female Receptacles

NEMA 14-50 Female

Grounded
NEMA Style	Voltage	Current	Face Dia.	Wire Connection Type	Receptacle Terminal Location	Mounting Location	Environmental Rating	Specifications Met	Color		Each
14-50	125V AC/250V AC	50A	2.4"	Screw Terminals	Back	Outlet Box	IP20	UL Listed, CSA Certified, UL 94 V-0	Black	0000000	0000000

Insulated Set Screw Lugs

To prevent short-circuiting with nearby wire, a plastic cover insulates the barrel on these lugs. Tighten the set screw for a secure connection without crimping.

45° elbow lugs connect to wire at an angle, so they fit in tight spaces.

Lug covers go over the entire lug, so they prevent accidental contact with other connections.

For technical drawings and 3-D models, click on a part number.

Lugs

Straight (1 Hole — 1 Wire)

Straight (1 Hole — 2 Wire)

45° Elbow

Straight
For Wire Gauge	For Screw Size	For Screw Size Decimal Equivalent	Lg.	Wd.	Ht.	Thick.	For Wire Type	For Wire Material	Insulation Color	Insulation Material	Terminal Material	Max. Temp., °F	Max. Voltage		Each
1 Hole — 1 Wire
6-1/0	1/2"	0.5"	3.625"	1.054"	1.270"	0.2"	Stranded	Copper	Black	Nylon	Copper	470°	40V AC 40V DC	0000000	000000
2/0-4/0	1/2"	0.5"	3.625"	1.080"	1.520"	0.188"	Stranded	Copper	Black	Nylon	Copper	470°	40V AC 40V DC	0000000	00000
1 Hole — 2 Wire
2/0-4/0	5/8"	0.625"	6.875"	2.687"	1.562"	0.257"	Stranded	Copper	Black	Nylon	Copper	350°	40V AC 40V DC	0000000	00000
45° Elbow
1 Hole — 1 Wire
6-1/0	1/2"	0.5"	3.125"	1.073"	1.750"	0.215"	Stranded	Copper	Black	Nylon	Copper	470°	40V AC 40V DC	0000000	00000
2/0-4/0	1/2"	0.5"	3.375"	0.913"	1.991"	0.188"	Stranded	Copper	Black	Nylon	Copper	470°	40V AC 40V DC	0000000	00000

Lug Covers

For Wire Gauge	Material		Each
6-4/0	Vinyl Plastic	0000000	000000

Lug Covers

Prevent accidental contact with other connections.

For Wire Gauge	Material	For Lug Shape		Each
6-4/0	Vinyl Plastic	Straight	0000000	000000

Power Cords

90° Elbow Plug × Wire Leads

90° Elbow Plug × Spade Terminals

NEMA 10-50 Plug

NEMA 14-50 Plug

Connect equipment and devices to a power supply.

Cords with a NEMA 14-30 or 14-50 plug are often used to power electric vehicles. They have a high current rating.

Cords with a 90° elbow plug fit flush against a wall outlet, so they fit behind machinery or in areas where space is tight.

The insulation on STW and SJTW cords resists water. SRDT cords are for use with high-current equipment, such as ranges and dryers.

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Wd.	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
90° Elbow NEMA 10-50 Plug × Spade Terminals
8, 6	50	125V AC/250V AC	4	__	1.03"	PVC Plastic	SRDT	0° to 140°	UL Listed	Gray	000000000	000000
8, 6	50	125V AC/250V AC	6	__	1.03"	PVC Plastic	SRDT	0° to 140°	UL Listed	Gray	00000000	00000
90° Elbow NEMA 14-50 Plug × Wire Leads
8, 6	50	125V AC/250V AC	4	1.08"	__	PVC Plastic	STW	0° to 140°	UL Listed	Black	000000000	00000
8, 6	50	125V AC/250V AC	30	1.08"	__	PVC Plastic	STW	0° to 140°	UL Listed	Black	000000000	000000
8, 6	50	125V AC/250V AC	36	1.08"	__	PVC Plastic	STW	0° to 140°	UL Listed	Black	000000000	000000
90° Elbow NEMA 14-50 Plug × Spade Terminals
8, 6	50	125V AC/250V AC	4	0.8"	__	PVC Plastic	SRDT	0° to 140°	UL Listed	Black	000000000	00000
8, 6	50	125V AC/250V AC	6	0.8"	__	PVC Plastic	SRDT	0° to 140°	UL Listed	Black	00000000	00000

Abrasion-Resistant Extension Cords

90° Elbow Plug with Handle × Socket

NEMA 14-50 Plug

NEMA 14-50 Socket

Thick insulation protects the internal wires of these cords, so they can be used in high-traffic areas and over rough surfaces. The industry designation is STW, so the insulation resists water.

Cords with a NEMA 14-50 plug and socket have a high current rating and are often used to power electric vehicles. The light on their socket illuminates when the cord has power. Their plug and socket have handles, making them easy to grip when plugging or unplugging them.

Cords with a 90° elbow plug fit flush against a wall outlet, so they fit behind machinery or in areas where space is tight.

For technical drawings and 3-D models, click on a part number.

					Cord
Wire Ga.	Current, A	Voltage	Power-Indicating Light	Features	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
90° Elbow NEMA 14-50 Plug × NEMA 14-50 Socket
15 ft.
8, 6	50	125V AC/250V AC	With Power-Indicating Light	Handle	1.08"	PVC Plastic	STW	UL Listed, C-UL Listed	Black	00000000	0000000
30 ft.
8, 6	50	125V AC/250V AC	With Power-Indicating Light	Handle	1.08"	PVC Plastic	STW	UL Listed, C-UL Listed	Black	00000000	000000
50 ft.
8, 6	50	125V AC/250V AC	With Power-Indicating Light	Handle	1.08"	PVC Plastic	STW	UL Listed, C-UL Listed	Black	00000000	000000

Grounding Clamps for Welding

Designed specifically for use with welding circuits. Clamps that are copper or have copper-plated components prevent weld spatter from sticking.

C-clamps tighten with a handle. Use these multipurpose tools for strong clamping in nearly any application. Heavy duty clamps have a strong frame that won’t spread when holding big workpieces, such as large diameter pipe and thick plate. No-twist clamps have jaws that move in unison to apply even pressure and prevent twisting while securing your workpiece. They’re also known as cantilever clamps. Clamps with an ABS plastic handle have a cushioned grip that’s comfortable to hold.

Plier clamps are good for light duty applications that require mobility, such as building a fence. Nonconductive clamps won’t transmit electricity, meaning you can touch them while the power is on without disrupting the circuit.

Spring clamps have an extended jaw that eases clamping. Both jaws carry current. Flat-jaw clamps grip flat surfaces especially well. They have a larger contact area with the workpiece than standard spring clamps, so electricity flows more easily, but their jaw openings aren’t as large.

Magnetic clamps stick to metal surfaces on your workpiece, even oddly-shaped and sized ones. Compared to traditional clamps, they require less manual effort and are less limited by the amount of space available on your workpiece. However, you can’t use them on aluminum or nonferrous material, and their hold is usually less powerful than traditional clamps. Clamps with an on/off switch let you engage and disengage the magnet for easy placement and removal of your workpiece. Multiple-angle clamps let you hold more than one workpiece at a time, at different angles.

Cable supports prevent cable strand breakage.

For technical drawings and 3-D models, click on a part number.

C-Clamps

C-Clamp, Heavy Duty C-Clamp (Bronze Connection)

No-Twist C-Clamp

No-Twist C-Clamp with ABS Plastic Handle

Standard
Current, A	For Wire Gauge	For No. of Wires	Max. Cable Outlet Dia.	Jaw Opening	Connection Material	Cable Connection Type	Features		Each
300	1/0, 2/0	__	0.56"	2"	Bronze	Male and Female Cam	Copper-Plated Steel Screw	0000000	000000
300	1/0, 2/0	__	0.56"	2"	Bronze	Screw	Copper-Plated Steel Screw	0000000	00000
600	3/0, 4/0	__	0.63"	2"	Bronze	Male and Female Cam	Copper-Plated Steel Screw	0000000	000000
600	3/0, 4/0	__	0.63"	2"	Bronze	Screw	Copper-Plated Steel Screw	0000000	000000
Heavy Duty
600	3/0, 4/0	1	0.66"	3 3/8"	Bronze	Male and Female Cam	Copper-Plated Steel Screw	0000000	000000
600	3/0, 4/0	1	0.66"	3 3/8"	Bronze	Screw	Copper-Plated Steel Screw	0000000	000000
No Twist
400	__	__	__	4 1/2"	Copper	Bolt and Nut	__	0000000	00000
400	__	__	__	4 1/2"	Copper	Bolt and Nut	ABS Plastic Handle	0000000	00000

Plier Clamps

Nonconductive Plier Clamp

Plier Clamp

Current, A	For Wire Gauge	Jaw Opening	Connection Material	Cable Connection Type	Stud Lg.	Features		Each
180	1/0	2"	Copper	Bolt and Nut	1/2"	Nonconductive, Cable Support	0000000	000000
200	1/0	1 1/2"	Steel	Bolt and Nut	3/4"	Cable Support	0000000	0000
300	1/0, 2/0	2"	Steel	Bolt and Nut	3/4"	Cable Support	0000000	00000
500	3/0, 4/0	2"	Steel	Bolt and Nut	3/4"	Braided Copper Shunt, Cable Support	0000000	00000

Spring Clamps

Spring Clamp

Flat Jaw Spring Clamp

Standard
Current, A	For Wire Gauge	Max. Cable Outlet Dia.	Jaw Opening	Connection Material	Cable Connection Type	Features		Each
200	6, 5, 4, 3, 2, 1, 1/0	0.51"	1"	Copper	Screw	Copper Hinge Pin, Cable Support	000000	000000
300	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0	0.54"	1 1/2"	Copper	Screw	Copper Hinge Pin, Cable Support	000000	00000
500	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0	0.58"	2"	Copper	Screw	Copper Hinge Pin, Cable Support	000000	00000
Flat Jaw
200	6, 5, 4, 3, 2, 1, 1/0	__	5/8"	Copper	Screw	Copper Hinge Pin	0000000	00000
300	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0	__	1"	Copper	Screw	Copper Hinge Pin	0000000	00000
500	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0	__	1 1/4"	Copper	Screw	Copper Hinge Pin	0000000	00000

Magnetic Clamps

Magnetic Clamp

Standard
Current, A	Connection Material	Cable Connection Type	Dia.	Handle Lg.	Stud Lg.		Each
250	Brass	Bolt and Nut	3 1/2"	5 1/8"	2"	000000	000000
800	Copper	Bolt and Nut	3 1/2"	5 1/8"	2"	000000	00000

Magnetic Clamps with On/Off Switch

Magnetic Clamp with On/Off Switch

Multiple-Angle Magnetic Clamp with On/Off Switch

Standard
Current, A	Connection Material	Cable Connection Type	Ht.	Wd.	Stud Lg.		Each
200	Steel	Bolt and Nut	2 3/4"	1 13/16"	1 1/4"	0000000	000000
300	Steel	Bolt and Nut	2 3/4"	1 15/16"	1 1/4"	000000	00000
800	Steel	Bolt and Nut	5"	3"	1 1/4"	000000	000000
Multiple Angle
300	Steel	Bolt and Nut	3 3/4"	1 15/16"	__	0000000	000000