Lenze SMV Training Lesson 7: Advanced Start And Restart Control Options – Variable Frequency Drives

ABB SREA-01 moves from Classic Life Cycle to Limited Life Cycle

ABB SREA-01 moves to Limited Life Cycle

As of November 17, 2017, the ABBSREA-01 has been moved into the Limited life cycle.

As of November 17, 2017, the ABB SREA-01 will be moved into the Limited life cycle. The SREA-01 will follow the drive life cycle management model. No future enhancements or firmware changes will be made to this product. Unfortunately there is no replacement for the SREA-01. It will continue to be in limited cycle until the product is no longer available and could change without notice. Technical support will still be available on the ABBSREA-01.

As the leading supplier of variable frequency drives, we are prepared to provide world-class support. We look forward to assisting you in this transitional phase and each subsequent lifecycle phase. The ABB SREA-01 will be in the Obsolete life cycle phase once the Limited life cycle phase expires.

ABBs lifecycle phases are defined as follows by this graphic representation:

The ABB life cycle management model is designed to manage an orderly transition to new replacement products or to choose from various lifetime extending services. Since there is no replacement for the ABBSREA-01, please contact Precision Electric for alternate solutions. At the same time the model ensures access to continuing support for our customers. In Limited phase no more firmware updates or enhancements will be available. For ABB repair and replacement quotes, contact Precision Electric at 574-256-1000 or by email at [email protected]

 

 

Nema Enclosure Ratings and IEC Protection Codes

There are two widely used standards for enclosure ratings. Nema enclosure ratings were created as the national standard for enclosures in the United States. Nema enclosure ratings were established by NEMA (National Electric Manufacturer Association). The international standard for enclosures was established by IEC (International Electric Codes).

Below are the standard Nema enclosure ratings for electrical equipment and IEC codes; both showing each of their descriptions. Manufacturers tend to offer electrical equipment in a number of different Nema and IEC enclosure ratings for safe operation in various environments. In todays international trade world, both standards are widely mentioned on a single product. (Example: NEMA 4X / IP 65). The most common Nema standards followed by IEC codes are shown below:

Nema Enclosure Ratings Type 1 are constructed for indoor use to provide a degree of protection to personnel against access tohazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingressof solid foreign objects (falling dirt).

Nema Enclosure Ratings Type 12are constructed (without knockouts) for indoor 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 enclosureagainst ingress of solid foreign objects (falling dirt and circulating dust, lint, fibers, and flyings); to pr ovide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (drippingand light splashing) and to provide a degree of protection against light splashing and seepage of oil and noncorrosive coolants.

Nema Enclosure Ratings Type 3R are 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 againstingress of solid foreign objects (falling dirt); to pr ovide a degree of protection with respect to harmful effectson the equipment due to the ingress of water (rain, sleet, snow); and, that will be undamaged by the externalformation of ice on the enclosure.

Nema Enclosure Ratings Type 3RXare 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 for eign objects (falling dirt); to pr ovide a degree of protection with respect to harmful ef fectson the equipment due to the ingress of water (rain, sleet, snow); that will be undamaged by the externalformation of ice on the enclosure that provides an increased level of protection against corrosion.

Nema Enclosure Ratings Type 4are 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 againstingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow, splashing water, and hosedirected water); and, that will be undamaged by the external formation of ice on the enclosure.

Nema Enclosure Ratings Type 4Xare 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 againstingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respectto harmful effects on the equipment due to the ingress of water (rain, sleet, snow, splashing water, and hose directed water); that provides an increased level of protection against corrosion; and that will be undamaged by the external formation of ice on the enclosure.

IP Codes – IEC Ratings

IEC outlines an international classification system for the sealing effectiveness of enclosures of electrical equipment against the intrusion into the equipment of foreign bodies (i.e. tools, fingers, dust) and moisture. This classification utilizes the letters IP (Ingress Protection) followed by two digits (example: IP 64).

 

 

 

 

 

 

 

 

 

 

The first digit indicates the degree that persons are protected against contact with moving parts (other than rotating shafts) and the degree that equipment is protected against solid bodies intruding into an enclosure.The second digit indicates the degree of protection of the equipment inside the enclosure against harmful entry of various forms of moisture (i.e. submersion, dripping, spraying).

To learn more about Nema enclosure ratings, visit either the Nema Websiteor IEC Website. For equipment repair and replacement quotes, call Precision Electric.

 

References: http://www.iec.ch/https://www.deltat.com/enclosure_ratings.htmlhttps://www.nema.org/pages/default.aspx

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