Locking Plugs

Twist electrical locking plugs are suitable for medical devices, electronics, lighting, machinery, grills, generators and lifts, etc. They come with nylon material, high quality and durable, fall resistant and explosion-proof. Plug matching socket has the function of clamping the power cord to prevent the phenomenon of slack power failure in the work. ATO.com provides 15A, 20A, 30A locking plugs with 125V ~ 600V rated voltage, 2 pole, 3 wire, 3 pole, 4 wire, 4 pole, 5 wire for your choices, they are all at low price. In addition, you can select male plug or female plug according to your needs. Shop online now!

What are the Types of Locking Plugs?

Straight-blade, non-locking types

Non-locking locking plugs feature flat-prong plugs that are designed to be pulled in and out of receptacles freely, which is convenient but is very likely to be disconnected by accident. They are commonly used for computers, household appliances and everyday applications where electrical devices are not required to be constantly turned on.

Curved-blade, twist-locking types

Twist-locking locking plugs have curved prongs that can be twisted after being inserted into the receptacle, to be locked in place. To unplug, the plug must be rotated in the reverse direction. Without this step, the plugged electrical devices cannot be disconnected, thus eliminating the risk of accidental disconnection and adding a layer of protection to electrical appliances. The locking coupling makes for a more reliable connection in commercial and industrial settings, where vibration or incidental impact could disconnect a non-locking connector.

How to Select Locking Plugs and Electrical Outlets?

Electrical outlets are an essential part of any home as well as commercial buildings and industrial areas. Improper configurations of plugs and receptacles could result in serious electrical hazards, such as short circuit, electrocution, electrical fires and so on. Therefore, it’s important to select the right outlets for any space that involves electricity.

There are a variety of factors that should be taken into consideration when choosing and ideal plug or connector for any of your needs. You’ll need to consider the right combinations of amperage and voltage for specific appliances and the number of blades as well as different grades of outlets for commercial or residential buildings. Last but not least, there are also special features you can select for your outlets that suit your home and your family’s needs.

Amperage

• Selecting outlets with rated amperage no less than the circuit.
• Most households have 15 amp outlets installed in place.
• 20 amp outlets are often installed in higher-use areas.
• 15 amp plugs can be inserted in either 15 or 20 amp outlets.

Voltage

• 110-120V plugs are generally used for common household appliances.
• 220-240V plugs are used for heavy duty industrial applications.
• 220-240V round plugs are a common alternative for 110-220V plugs.

Number of blades

Blades, also call pins, are male plug contacts that connect with female plug contacts. You can find round or flat blades in a variety of sizes on a plug. The number of pins you need for an outlet often depends on the appliance you’re trying to plug into it. To prevent serious safety hazards from occurring, it’s vital that you pick out a plug or connector with the right amount of blades as well as the correct configuration.

Outlet Grades

"Grade" essentially means levels of quality regarding outlets. There are generally three grades you can choose from.

• Homeowner grade (Last 5-10 years)
• Commercial grade (Last up to 100 years)
• Hospital grade

GFCI or AFCI outlets

GFCI (Ground Fault Circuit Interrupters)

• Contain a small circuit breaker.
• Can protect you and your family from electric shock.

AFCI (Arc Fault Circuit Interrupters)

• Include a small built-in breaker.
• Protect your home from electrical fires.
• Typically found in bedroom.

If you want to know more about how to buy NEMA plug, view the video below.