What does L21 30 mean?

NEMA Locking L21-30 male Plug Three Phase WYE power cords. Capable of 30 Amps with 8 AWG cord and appropriate female connector. Locking plugs have the pins arrayed in a circular manner and operate at 120/208 Volts. The plug offers three Hot Lines, Neutral, Ground.

How does a twist lock plug work?

How does a twist lock receptacle work? A normal three-prong outlet can simply be pushed or pulled to connect with a standard wall outlet. The male connector usually has curved prongs that plug into the receptacle and then are twisted to lock into place. To unplug, the plug must be twisted the opposite direction.

What is an L14?

The NEMA L14-30 twist lock receptacle is the type you usually find on portable generators that provide 240-volt electricity. The plug is rated by the National Electrical Manufacturer Association to supply 240-volt electricity at a maximum current of 30 amps.

Where would you use a twist lock receptacle?

What Types of Equipment Use a Twist Lock Receptacle?

• Pool pumps.
• Generators.
• Computer equipment.
• Medical equipment.
• Lighting and sound equipment.
• Power poles.
• Heavy industrial and commercial equipment.