4-Blade Power Cords | McMaster-Carr

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162 Products

About NEMA Plugs, Sockets, and Receptacles

Power Cords

Connect equipment and devices to a power supply.

Abrasion-Resistant Extension Cords

Thick insulation protects the internal wires of these cords, so they can be used in high-traffic areas and over rough surfaces.

Extension Cord Adapters

Change the connection style between an outlet and your equipment.

Turn-Lock Extension Cords for Harsh Environments

These cords have an oil- and water-resistant insulation and impact-resistant connectors for protection in harsh environments.

Abrasion-Resistant Turn-Lock Extension Cords

Thick insulation protects the internal wires of these cords, so they can be used in high-traffic areas and over rough surfaces.

Plugs, Sockets, and Receptacles

Premium Straight-Blade Plugs,
Sockets, and Receptacles

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

Straight-Blade Plugs, Sockets, and Receptacles

Use these connectors in general purpose residential and commercial applications.

Turn-Lock Plugs, Sockets, and Receptacles

Use these general purpose connectors indoors in high vibration applications. A quarter turn locks them together when mated to remain secure in high-vibration applications.

Premium Turn-Lock Plugs,
Sockets, and Receptacles

Also known as twist-lock devices, these connectors withstand tough, repetitive use, and are more durable than standard turn-lock connectors. They turn to lock together when mated to prevent accidental disconnection.

Washdown Turn-Lock Connectors and Cords

When mated, these connectors meet NEMA 6P for protection against washdowns and temporary submersion.

Impact-Resistant Turn-Lock Connectors

A rubber housing protects these connectors from damage caused by drops and impact. They turn to lock together when mated to prevent accidental disconnection.

Corrosion-Resistant Turn-Lock Connectors

Stainless steel hardware and nickel-plated blades or slots protect connections from damage in corrosive environments. These connectors turn to lock together when mated to prevent accidental disconnection.

Non-NEMA Turn-Lock Connectors

A quarter turn locks these connectors in an outlet to remain secure in high-vibration applications and prevent accidental disconnection. They are not compatible with NEMA configurations.