Single Pole Connectors | McMaster-Carr

	Current Current

150A

300A

400A

	For Wire Gauge For Wire Gauge

8
7
6
5
4
3
2
1
1/0
2/0
3/0
4/0

	Voltage Voltage

600V AC

600V DC

	Gender Gender

Male

Female

	Color Color

	Black		Green
	Red		White
	Blue		Yellow

	Environment Environment

High-
Pressure
Washdown

Submersible

Washdown

	Type Type

Plug

Receptacle

Socket

	Environmental Rating Environmental Rating

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Specifications Met Specifications Met

CSA

	Wire Connection Type Wire Connection Type

Screw Terminals

Stud Terminals

	OD OD

1.8"

	Length Length

2.6"

4.3"

	Manufacturer Model Number Manufacturer Model Number

	Manufacturer Manufacturer

Molex

Leviton

Meltric

	For Panel Cutout Diameter For Panel Cutout Diameter

0.9"

1.6"

	Mounting Hole Diameter Mounting Hole Diameter

0.2"

0.22"

	Number of Mounting Holes Number of Mounting Holes

	For Connector Type For Connector Type

Plug

Socket

	For OD For OD

1.9"

2.5"

2.8"

	For Gender For Gender

Female

Male

	For Face Diameter For Face Diameter

56 Products

High-Current Pin-and-Sleeve Connectors

A high current rating makes these connectors suitable for use in industrial machinery and floodlights. Current rating is based on using these connectors with the largest size 194° F rated cable in the wire size range given; current ratings decrease as the cable size decreases. The housing is shatter- and crack-resistant rubber so they can withstand rough environments. Push and twist to join plugs and sockets. When mated, they form a vibration-resistant connection to prevent accidental disconnection. Rated NEMA 3R, they protect against falling liquids and light splashing.

Adapters (sold separately) allow you to change the connector’s gender and make multiple connections from a single power source.

Caps (sold separately) protect connectors when not in use.

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

Plugs

Connectors											Replacement Housings
Current	Voltage	No. of Poles	Wire Connection Type	For Wire Gauge	OD	Temp. Range, °F	Environmental Rating	Choose a Color		Each		Each
150A	600V AC/600V DC	1	Screw Terminals	8-2	1"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000	0000000	000000
300A	600V AC/600V DC	1	Screw Terminals	2-2/0	1.8"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000	0000000	00000
400A	600V AC/600V DC	1	Screw Terminals	2/0-4/0	1.8"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000	0000000	00000

Sockets

Connectors											Replacement Housings
Current	Voltage	No. of Poles	Wire Connection Type	For Wire Gauge	OD	Temp. Range, °F	Environmental Rating	Choose a Color		Each		Each
150A	600V AC/600V DC	1	Screw Terminals	8-2	1"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000	0000000	000000
300A	600V AC/600V DC	1	Screw Terminals	2-2/0	1.8"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000	0000000	00000
400A	600V AC/600V DC	1	Screw Terminals	2/0-4/0	1.8"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000	0000000	00000

Panel-Mount Female Receptacles with Stud Terminals

Current	Voltage	No. of Poles	For Wire Gauge	Stud Thread Size	Lg.	Temp. Range, °F	Environmental Rating	Choose a Color		Each
150A	600V AC/600V DC	1	8-2	5/16"-18	2.6"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000

Panel-Mount Female Receptacles with Screw Terminals

Current	Voltage	No. of Poles	For Wire Gauge	Lg.	Temp. Range, °F	Environmental Rating	Choose a Color		Each
400A	600V AC/600V DC	1	1/0-4/0	2.6"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000

Panel-Mount Male Receptacles with Stud Terminals

Current	Voltage	No. of Poles	For Wire Gauge	Stud Thread Size	Lg.	Temp. Range, °F	Environmental Rating	Choose a Color		Each
150A	600V AC/600V DC	1	8-2	5/16"-18	2.6"	-75° to 220°	NEMA 3R	Black, Green, Red, White	0000000	000000

Panel-Mount Male Receptacles with Screw Terminals

Current	Voltage	No. of Poles	For Wire Gauge	Lg.	Temp. Range, °F	Environmental Rating	Choose a Color		Each
400A	600V AC/600V DC	1	1/0-4/0	4.3"	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000

Caps

For Male

For Female

For Gender	For Connector Current	Material	Includes	Environmental Rating	Choose a Color		Each
Male	300 A/400 A	Rubber	Lanyard	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000
Female	300 A/400 A	Rubber	Lanyard	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000

Adapters

Straight, Female × Female

Straight, Male × Male

Tee, Male × Female × Female

Tee, Male × Male × Female

Double Wye, Female × Male × Male × Male

Double Wye, Male × Female × Female × Female

Shape	For Connector Current	Voltage	Temp. Range, °F	Environmental Rating	Choose a Color		Each
Straight, Female × Female	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000
Straight, Male × Male	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	00000
Tee, Male × Female × Female	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000
Tee, Male × Male × Female	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000
Double Wye, Female × Male × Male × Male	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Green	0000000	000000
Double Wye, Male × Female × Female × Female	300A/400A	600V AC/600V DC	-75° to 220°	NEMA 3R	Black, Blue, Green, Red, White	0000000	000000

Replacement Pins for Plugs

Max. Current	Voltage		Each
400A	600V AC/600V DC	00000000	000000

Replacement Sleeves for Sockets

Max. Current	Voltage	Environmental Rating	Specifications Met		Each
150A	600V AC/600V DC	NEMA 3R	UL Listed, CSA Certified	00000000	000000
400A	600V AC/600V DC	NEMA 3R	UL Listed, CSA Certified	00000000	00000

Caps for High-Current Pin-and-Sleeve Connectors

For Female

For Male

Protect high-current connectors when not in use.

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

For Female
For Current	Manufacturer	Material	Includes	Color	Environmental Rating	Specifications Met	Manufacturer Model No.		Each
300 A/400 A	Leviton	Rubber	Lanyard	Black	NEMA 3R	UL Listed, CSA Certified	16P22-UE	00000000	000000
300 A/400 A	Leviton	Rubber	Lanyard	Blue	NEMA 3R	UL Listed, CSA Certified	16P22-UB	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	Green	NEMA 3R	UL Listed, CSA Certified	16P22-UG	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	Red	NEMA 3R	UL Listed, CSA Certified	16P22-UR	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	White	NEMA 3R	UL Listed, CSA Certified	16P22-UW	00000000	00000
For Male
300 A/400 A	Leviton	Rubber	Lanyard	Black	NEMA 3R	UL Listed, CSA Certified	16P21-UE	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	Blue	NEMA 3R	UL Listed, CSA Certified	16P21-UB	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	Green	NEMA 3R	UL Listed, CSA Certified	16P21-UG	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	Red	NEMA 3R	UL Listed, CSA Certified	16P21-UR	00000000	00000
300 A/400 A	Leviton	Rubber	Lanyard	White	NEMA 3R	UL Listed, CSA Certified	16P21-UW	00000000	00000

Caps for Hazardous Location Safe-Break Pin-and-Sleeve Connectors

Caps are watertight to protect hazardous location safe-break plugs when not in use.

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

For Plugs
For Face Dia.	Manufacturer	Manufacturer Model No.	Material	Color		Each
2"	Meltric	22-1A426	Neoprene Rubber	Black	0000000	000000
2.6"	Meltric	22-3A426	Neoprene Rubber	Black	0000000	00000
3.1"	Meltric	22-6A426	Neoprene Rubber	Black	0000000	00000

Caps for Safe-Break Pin-and-Sleeve Connectors

Caps are watertight to protect safe-break plugs when not in use.

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

For Plugs
For Face Dia.	Manufacturer	Manufacturer Model No.	Material	Color	Environmental Rating		Each
1.3"	Meltric	61-1A426	Neoprene Rubber	Black	IP66, IP67, IP69K, NEMA 4X	00000000	000000
1.8"	Meltric	61-3A426	Neoprene Rubber	Black	IP66, IP67, IP69K, NEMA 4X	00000000	00000
2.2"	Meltric	61-6A426	Neoprene Rubber	Black	IP66, IP67, IP69K, NEMA 4X	00000000	00000
2.6"	Meltric	31-6A426	Neoprene Rubber	Black	IP66, IP67, IP69K, NEMA 4X	00000000	00000

Caps for Washdown Plugs and Sockets

For Plugs

For Sockets

Caps can be used with straight-blade and turn-lock plugs and sockets.

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

				Yellow			Black
For OD	Manufacturer	Material	Environmental Rating	Manufacturer Model No.		Each	Manufacturer Model No.		Each
For Plugs
1.9"	Molex	Rubber	IP67	14W	000000000	000000	14WBLK	000000000	000000
2.5"	Molex	Rubber	IP67	26W	000000000	00000	26WBLK	000000000	00000
2.8"	Molex	Rubber	IP67	28W	000000000	00000	28WBLK	000000000	00000
For Sockets
1.9"	Molex	Rubber	IP67	50W50	000000000	0000	50W50BLK	000000000	00000
2.5"	Molex	Rubber	IP67	50W52	000000000	00000	50W52BLK	000000000	00000
2.8"	Molex	Rubber	IP67	50W54	000000000	00000	50W54BLK	000000000	00000