Lead Contents

Meaning of Common Symbols

Symbol		Meaning
		New products
International Standards		UL(See note.)
		UL(CSA) (See note.)
		CSA
		VDE
		TÜV
		EU Directives
		Certified for Chinese Standards

[Note]

• For details, refer to Standards.

Warning Indications

Warnings in Precautions and Safety Precautions are indicated as shown in the following table.

Classification		Symbol	Meaning
Ite m s for product safety	Precautionary information		Indicates an imminently hazardous situation which, if not avoided, is likely to result in serious injury or may result in death. Additionally there may be severe property damage.
			Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or may result in serious injury or death. Additionally there may be significant property damage.
			Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage.
	Points to note	Precautions for Correct Use	Supplementary comments on what to do or avoid doing, to prevent failure to operate, malfunction or undesirable effect on product performance.
Other items		Precautions for Safe Use	Supplementary comments on what to do or avoid doing, to use the product safely.

Meaning of Product Safety Symbols

Symbol		Meaning
Precautionary information		General Caution Indicates general cautionary, warning, or danger level information
		Explosion Caution Indicates the possibility of explosion under specific conditions
		Electrical Shock Caution Indicates possibility of electric shock under specific conditions
		High Temperature Caution Indicates the possibility of injury by high temperature under specific conditions
		Laser Caution Indicates information related to laser safety
Prohibitions		General Prohibition Indicates a general prohibition
		Contact Prohibition Indicates prohibition of coming into contact with a specific part of a specific device under specific condition because of the possibility of injury.
		Disassembly Prohibition Indicates that disassembly is prohibited to prevent electric shock.
Mandatory actions		General Mandatory Action Indicates a general action that must be performed by the user.
		Mandatory Ground Indicates that a ground that must be connected by the ser for a device equipped with a ground terminal.
		Nickel-Cadmium Battery Collection Indicates a nickel-cadmium battery that must be collected and recycled.

SI Units

In line with international standards, this catalog uses SI units. Some conversions from units that have been used in our previous catalogs to SI units are given in the following table.

SI unit Conversions (Units in shaded boxes are SI units.)