What does NEMA 1 enclosure mean?
Type 1. Enclosures constructed for indoor use to provide a degree of protection to. personnel against access to hazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt).
What is a NEMA Type 4 enclosure?
NEMA 4 Enclosures & Boxes. NEMA 4 enclosures offer indoor and outdoor solutions for watertight electrical applications. Boxes meeting NEMA 4 standards ensure protection for your equipment in adverse conditions including rain, sleet and snow, as well as, splashing or hose directed water.
What is the difference between a NEMA 1 and NEMA 3 enclosure?
NEMA 1 enclosures are used in applica- tions where sealing out dust, oil, and water is not required. water and dirt. NEMA 3 enclosures are intended for outdoor use primarily to provide a degree of protection against windblown dust, rain, sleet, and external ice formation.
What is a NEMA 7 enclosure?
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 NEMA 1 and NEMA 2?
NEMA 1: For indoor use. Protects users against contact with hazardous components and protects the components from the ingress of solid objects, such as fingers and falling dirt. NEMA 2: For indoor use. Same as NEMA 1 but adds protection against the ingress of dipping and light splashing water.
What do the NEMA numbers mean?
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 5-15 represents 3-Wire 125V and the “15” represents 15 amp.
What is the difference between NEMA 3 and NEMA 4?
NEMA 3: For indoor or outdoor use. Same as NEMA 2 but adds stronger protection against the ingress of water and dust. It protects against windblown dust, rain, sleet, and snow and will be undamaged by ice forming on the enclosure. NEMA 4: Same as NEMA 3 but adds protection against hose directed water.
What is a NEMA 3R enclosure?
NEMA 3R. Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts. To provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt)
What is the difference between NEMA 3r and NEMA 4X?
NEMA 4: Same as NEMA 3 but adds protection against hose directed water. NEMA 4X: Same as NEMA 4 but adds protection against corrosion. Protects against the ingress of objects, fingers, and falling dirt, hose directed water and is undamaged by ice formation.
What is the NEMA standard?
The National Electrical Manufacturers Association (NEMA) defines standards used in North America for various grades of electrical enclosures typically used in industrial applications. Each is rated to protect against personal access to hazardous parts, and additional type-dependent designated environmental conditions.
What is the difference between NEMA 1 and NEMA 4?
For in depth information on the different Nema ratings we offer, please continue reading to the list below. Type 1: General purpose enclosures constructed for indoor use. Protects against dust, light, and indirect splashing but is not dust-tight. NEMA 4X is used when protection from the worst environments is required.
Is IP65 equivalent to NEMA 4X?
Ingress Protection (IP) ratings were developed in Europe and are used internationally. NEMA ratings (also called NEMA Type ratings) were developed by the U.S.-based National Electrical Manufacturers Association….Ratings Overview and Comparison.
| NEMA Rating (U.S.) | IP Rating (International) | |
|---|---|---|
| 4 | = | IP65 / IP66 |
| 4X | = | IP65 ⁄ IP66 |
What is the difference between NEMA 3 and NEMA 3R enclosures?
NEMA 3R: Same as NEMA 3 but without the protection against windblown dust. The standard doesn’t say this, but typically the difference is that there is no gasketing on NEMA 3R enclosures. NEMA 3S: Same as NEMA 3 but adds the provision that external mechanism remain operable when ice laden.
What do NEMA enclosure designations mean?
The NEMA enclosure description is similar to the IEC Index of Protection (IP) code. The NEMA designations are more descriptive and general, whereas the IEC IP codes are more precise and narrowly defined by a 2-digit code, with the first digit defining how well protected the motor is from solid objects and the second digit describing how well protected the motor is from moisture.
What is a NEMA 5 enclosure rating?
The NEMA 5 rating itself is considered an indoor enclosure rating. That means that an enclosure with a maximum rating of NEMA 5 is usually not suitable for outdoor use. However, many enclosures with NEMA 5 ratings also qualify for outdoor NEMA ratings such as NEMA 4 or NEMA 6P . Source: Phovoir/Shutterstock.
What is NEMA Type 13 enclosure?
Type 13 NEMA enclosures are defined as: Type 13 enclosures are intended for use indoors primarily to house pilot devices such as limit switches, foot switches, pushbuttons, selector switches, pilot lights, etc., and to protect these devices against lint and dust, seepage, external condensation, and spraying of water, oil or coolant.
