Bosch Power Tools PS21BN, PS21-2A manual Symbols, Symbol Name Designation/Explanation

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Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

Symbol				Name	Designation/Explanation
		V		Volts	Voltage (potential)
		A		Amperes	Current
	Hz			Hertz	Frequency (cycles per second)
	W			Watt	Power
	kg			Kilograms	Weight
min				Minutes	Time
			s	Seconds	Time
				Diameter	Size of drill bits, grinding wheels, etc.
	n0			No load speed	Rotational speed, at no load
.../min				Revolutions or reciprocation per minute	Revolutions, strokes, surface speed,
					orbits etc. per minute
0				Off position	Zero speed, zero torque...
1, 2, 3, ...				Selector settings	Speed, torque or position settings.
I, II, III,					Higher number means greater speed
0				Infinitely variable selector with off	Speed is increasing from 0 setting
				Arrow	Action in the direction of arrow
				Alternating current	Type or a characteristic of current
				Direct current	Type or a characteristic of current
				Alternating or direct current	Type or a characteristic of current
				Class II construction	Designates Double Insulated
					Construction tools.
				Earthing terminal	Grounding terminal
				Warning symbol	Alerts user to warning messages
				Li-ion RBRC seal	Designates Li-ion battery recycling
					program

This symbol designates that this tool is listed by Underwriters Laboratories.

This symbol designates that this tool is listed by the Canadian Standards Association.

This symbol designates that this tool is listed by the Canadian Standards Association, to United States and Canadian Standards.

This symbol designates that this tool is listed by Underwriters Laboratories, to United States and Canadian Standards.

This symbol designates that

this tool complies to NOM Mexican Standards.

This symbol designates that this tool is listed by the Intertek Testing Services, to United States and Canadian Standards.

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