18A Extension Cords | McMaster-Carr

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7 Products

About Industry Designation for Cable Insulation

About Extension Cords

Abrasion-Resistant Extension Cords for Harsh Environments

Run these cords through high-traffic areas in dirty and greasy environments. They have a thick insulation that resists water, oil, and chemicals, and protects against abrasion.

SOOW cords have both an outer and inner insulation that resists oil, making them more durable than SEOW cords, which only have an outer insulation. SOOW cords also have impact-resistant connectors.

NEMA 5-20 Plug

NEMA 5-20 Socket

NEMA 6-20 Plug

NEMA 6-20 Socket

				Cord
Wire Gauge	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA 5-20 Plug × NEMA 5-20 Socket
25 ft.
14	18	125V AC	Without Power-Indicating Light	0.5"	Rubber	SOOW	UL Listed	Yellow	0000000	0000000
NEMA 6-20 Plug × NEMA 6-20 Socket
25 ft.
14	18	250V AC	Without Power-Indicating Light	0.5"	Rubber	SOOW	UL Listed	Yellow	0000000	000000

Turn-Lock Extension Cords for Harsh Environments

NEMA L6-20 Plug

NEMA L6-20 Socket

These cords have an oil- and water-resistant insulation and impact-resistant connectors for protection in harsh environments. Give the connectors a quarter turn to lock in place; they remaining secure in high-vibration applications.

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L6-20 Plug × NEMA L6-20 Socket
25	14	18	250V AC	Without Power-Indicating Light	0.5"	Rubber	SOOW	UL Listed	Yellow	0000000	0000000

Safety Start-Up Power Cords

Wire Leads × Wire Leads

After shutting off power to equipment during a power failure, these cords must be manually reset, preventing unexpected equipment start-up. Use them to replace three-wire power cords on equipment driven by small single-phase motors. The industry designation is SJTO, so the insulation resists oil.

Wire Leads × Wire Leads
Wire Gauge	Current, A	Voltage	Lg., ft.	Cord OD	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
14	18	125V AC	8 × 1 1/2	0.38"	SJTO	32° to 165°	UL Recognized Component, C-UL Recognized Component	Black	0000000	0000000

Mini Connectors

Often used to send power and signal to automated systems, motors, and pumps, these mini connectors carry higher currents than M5, M8, and M12 connectors. A threaded housing securely mates with other mini connectors and won’t come loose from shaking or vibration. They have a standard pole layout and housing thread size to reduce the chance you’ll mis-mate connectors.

Connectors with a 0.87" face diameter have the highest current ratings, so you can use them for heavier duty industrial machinery such as cooling fans, grinders, and conveyor systems. The plugs and sockets have a rubber cable outer insulation, which resists oil, water, and weld slag. This makes them a good choice for wet and harsh industrial environments.

When mated, these connectors meet IP or NEMA ratings. IP68 and NEMA 6P rated connectors protect against dust, submersion, washdowns, and weather.

Caps protect connectors and maintain their IP and NEMA ratings when not in use.

Thread adapters connect plugs and sockets that both have internal threads.

Plugs with Wire Leads—Internal Thread

3 Pole
with 0.87"
Face Dia.

									Housing Thread				6 ft. Lg. Cable Leads
Number of Poles	Face Dia.	Voltage	Current	Wire Lead Gauge	Cable OD	Cable Outer Insulation Material	Color	Housing Material	Size	Type	Max. Temp., °F	Environmental Rating		Each
3	0.87"	600V AC/600V DC	18A	14	0.58"	Rubber	Yellow	Rubber	1 3/8"-16	UNS	220°	IP68, NEMA 6P	00000000	000000

Sockets with Wire Leads—Internal Thread

3 Pole
with 0.87"
Face Dia.

									Housing Thread				6 ft. Lg. Cable Leads
Number of Poles	Face Dia.	Voltage	Current	Wire Lead Gauge	Cable OD	Cable Outer Insulation Material	Color	Housing Material	Size	Type	Max. Temp., °F	Environmental Rating		Each
3	0.87"	600V AC/600V DC	18A	14	0.58"	Rubber	Yellow	Rubber	1 3/8"-16	UNS	220°	IP68, NEMA 6P	00000000	0000000

Caps

External Thread

	Thread
For Face Dia.	Size	Type	Material	Temp. Range, °F		Each
External Thread
0.87"	1 3/8"-16	UNS	Anodized Aluminum	-40° to 190°	0000000	000000