Schneider Electric 17S Series manual Standard, UL and cUL, UL 508C

Standards and Compliances, continued

SERCOS	If you want to reference the international SERCOS communications standard, get a
Standard	copy of:
	International Standard IEC 1491, Electrical Equipment of Industrial Machines –
	Serial Data Link for Real-Time Communication between Controllers and Drives.
	SERCOS is an industry standard term that refers to a special type of fiber–optic
	communication protocol, as defined by the SERCOS Interface, Inc., promotion
	society. (SERCOS®interface is a trademark of SERCOS Interface, Inc., promotion
	society.)
UL and cUL
	UL Listed (cUL Certified) drives (Underwriters Laboratories Inc.) comply with the
Compliance	relevant American and Canadian standards (in this case, UL 840 and UL 508C).
	This standard describes the minimum requirements for electrically operated power
	conversion equipment (such as frequency converters and drives) and is intended to
	eliminate the risk of injury to personnel from electric shock or damage to equipment
	from fire. Conformance with the United States and Canadian standard is
	determined by an independent UL (cUL) fire inspector through the type testing and
	regular checkups.
	UL 508C
	UL 508C describes the minimum requirements for electrically operated power
	conversion equipment (such as frequency converters and drives) and is intended to
	eliminate the risk of fire caused by that equipment.
	UL 840
	UL 840 describes air and insulation creepage spacings for electrical equipment and
	printed circuit boards.

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