Adjustable Speed Drives offer voltage sag immunity.

Press Release Summary:

Altivar® CL8839 58M enclosed, Square D® drives offer built-in Ethernet connectivity and are certified for compliance with SEMI F47 voltage sag requirements. Available in extended horsepower ratings to 500 hp, products are packaged in Type 1, Type 12, integrated, or barriered enclosures for wall or floor mounting and come with optional door mounted display center with 3-color matrix screen. Their 4-position selector switch simplifies monitoring and control capabilities.

Original Press Release:

New Family of Enclosed Drives from Schneider Electric Provide Superior Voltage Sag Immunity, Communications Capabilities

PALATINE, Ill. - September 3, 2003 - A new family of enclosed Square D® adjustable speed drives with superior voltage sag immunity and unmatched communications capabilities has been introduced by Schneider Electric. The Altivar® CL8839 58M family of drives is designed for a broad range of industrial and commercial applications, including semiconductor processing, pharmaceutical and biotech applications and pump control in water/wastewater treatment applications.

CL8839 58M drives have built-in Ethernet connectivity, incorporating the Altivar 58 TRX with its extended communications capabilities. They have been certified for compliance with the SEMI F47 voltage sag requirements of the semiconductor industry and are available in an extended horsepower rating up to 500 HP.

Packaged in Type 1, Type 12, integrated or barriered enclosures for wall or floor mounting, the drives come with an optional door mounted display center with a three-color matrix screen for clear messaging. Pre-punched conduit knockouts assure ease of installation, and job specific approval drawings speed project cycle time. A four-position selector switch simplifies monitoring and control capabilities for increased productivity. The UL listed drives conform to all international standards including NEMA ICS, NFPA and IEC.

Standard features include circuit breaker disconnect for lock-outs, door mounted keypad, dry contacts for drive run and drive fail indication, low noise switching frequency and a 120 V control circuit. Factory-available modifications included door mounted pilot devices, seismic qualification, line contactors, isolation/bypass contactors, communication cards, I/O cards and other factory engineered modifications.

For more information about drives and other motor control products from Schneider Electric, call 1-800-392-8781 or visit

Headquartered in Palatine, Ill., the North American Operating Division of Schneider Electric had sales of $2.7 billion in 2002. The North American Operating Division is one of three geographic divisions of Schneider Electric, headquartered in Paris, France, and markets the Square D, Telemecanique and Merlin Gerin brand products to customers in the United States, Canada and Mexico. In the United States, Schneider Electric is best known by its flagship Square D brand, with Telemecanique becoming increasingly known in the industrial control and automation markets and supported by many Square D distributors. For 100 years, Square D has been a market-leading brand of electrical distribution and industrial control products, systems and services. Schneider Electric is a global electrical industry leader with 2002 sales of approximately $9.5 billion. Visit Schneider Electric at,, or

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