Panelboards feature transient voltage surge suppression.

Press Release Summary:

I-LINE®, NF, and QMB power distribution panelboards, and NQOD lighting panelboards include built-in SURGELOGIC® TVSS capability. I-Line boards feed NQOD and NF lighting and appliance panelboards as well as large motors and temperature control systems. NF units are suitable for electrical systems up to 480 Y/277 V. NQOD panelboards handle 240 V systems, and are specified to power lighting systems and small electrical equipment. QMB panelboards feed motors, transformers, and lighting systems.

Original Press Release:

Square D Panelboards Now Feature Internal Surgelogic® TVSS Protection

PALATINE, Ill. - April 8, 2003 - Schneider Electric has added internal SURGELOGIC® transient voltage surge suppression (TVSS) capability to its SQUARE D brand I-LINE®, NF and QMB power distribution panelboards, and NQOD lighting panelboards. Internal surge suppression capability provides optimum over-voltage protection for electronic equipment, ensuring equipment operation. While surge suppression is beneficial to any commercial or industrial facility, it is particularly important for critical power applications in data centers and telecommunications; process controlled manufacturing in automotive, pharmaceutical, pulp and paper; and especially life support in hospitals and secure operations.

"Problems from transient voltage surges cost U.S. companies billions of dollars each year - for direct damage to electrical distribution systems, electronic equipment, software and tools, and for the cost of lost productivity," said Lane Jensen, SQUARE D product manager. "The best way to ensure cost-effective power quality and guard against those problems is to use surge protective devices that are built directly into end-use equipment. Internal TVSS devices don't require the extra several feet of conductor used by externally mounted devices."

Specifically designed for integration with SQUARE D equipment, SURGELOGIC TVSS devices are built into new panelboards at the Square D/Schneider Electric factory. For additional end-user convenience, I-LINE plug-on units and QMB fusible switches come with TVSS already installed. These units also can be easily added to existing equipment to provide the performance of a fully integrated device. SURGELOGIC integral TVSS systems are fully tested and certified as specified by UL 1449 Second Edition and UL 1283.

I-Line panelboards are used to feed NQOD and NF lighting and appliance panelboards as well as large motors and temperature control systems. NF panelboards are designed for flexible application in commercial and industrial electrical systems up to 480Y/277V.

NQOD lighting and appliance panelboards are designed for 240V maximum systems, and are frequently specified to power lighting systems and small electrical equipment in industrial facilities. QMB panelboards feed motors, transformers and lighting systems. They are designed for use with AC or DC systems, and are suitable for use as service equipment.

Square D/Schneider Electric also offers a full range of externally mountable TVSS devices used to protect single pieces of equipment or for quick retrofit applications. External TVSS devices can be used alone or in conjunction with internal devices.

For more information about the complete line of SURGELOGIC surge protection devices from Square D/Schneider Electric, call 1-800-392-8781, visit or send an e-mail message to

Headquartered in Palatine, Ill., the North American Division of Schneider Electric had sales of $2.7 billion in 2002. The North American Division is one of three geographic divisions of Schneider Electric, headquartered in Paris, France. It markets SQUARE D, TELEMECANIQUE and MERLIN GERIN products in the United States, Canada and Mexico. In the United States, it is best known by its flagship SQUARE D brand. For 100 years, SQUARE D has been a market-leading brand of electrical distribution, industrial control and automation 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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