What is NEMA chart?

The NEMA chart and ratings were designed to enable electrical enclosures to operate safely while ensuring optimal functioning and compatibility of electrical products. Assuming you can understand the naming and what each number and letter means, you can know the best way to use your electrical products.

Why are there different receptacle and plug configurations?

The National Electrical Manufacturers Association (NEMA) has assigned designations to the various configurations. The purpose of so many different types is to prevent the wrong combinations of electrical systems from being plugged together, thereby avoiding potentially dangerous conditions.

What does the L stand for in NEMA?

The NEMA (National Electrical Manufacturers Association) pattern and numbering system is made up of four main identifiers.

What does NEMA 12 mean?

NEMA 12 Enclosures constructed (without knockouts) for indoor use to provide a degree of protection against circulating dust or fibers, falling dirt and dripping non-corrosive liquids.

Can I use a 15 amp outlet on a 20 amp circuit?

The amperage of the outlet must never exceed the amperage of the circuit. According to National Electrical Code, only a 15-amp or 20-amp electrical receptacle can be installed to a 20-amp circuit. A 15-amp receptacle may also be installed on a 15-amp circuit.

How do you read NEMA plugs?

NEMA designations are based on a two part code where the numbers before the dash represent voltage and wires and the numbers after the dash represent amperage. For example, the “5” in the common NEMA 5 15 represents 3-Wire 125V and the “15” represents 15 amp. The same goes for the NEMA 14 30!

What is the L in NEMA?

twist-locking device
As an example, assume the NEMA code of a connector is L5-30R: The letter ‘L’ indicates a twist-locking device.

What NEMA 13?

NEMA 13 enclosures are designed to protect electrical equipment from dust, sprayed water, oil and non-corrosive coolant in indoor environments. Dependable NEMA 13 boxes are available in plastic and aluminum in a variety of styles and sizes.

What does NEMA 7 mean?

NEMA 7 enclosures are designed to contain an internal explosion without causing an external hazard. These enclosures are intended for indoor use in hazardous locations classified as Class I, Division I, Groups A,B,C, or D.

What is the difference between L6 20 and L6 30?

It is a NEMA L6-20P to NEMA L6-30R. The NEMA L6-20P is a 20 Amp, 250-Volt, 3-prong locking male plug. The NEMA L6-30R is a 30 Amp, 250-Volt, 3-prong female connector. The product is heavy duty, compact and contains nickel-plated plugs and terminals to prevent rusting.