Bosch 3-500 Operating/Safety Instructions Manual page 5

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
V Volts
A Amperes
Hz Hertz
W Watt
kg Kilograms
min Minutes
s Seconds
⌀
Diameter
n No load speed
0
n Rated speed
.../min Revolutions or reciprocation per min-
ute
0 Off position
1, 2, 3, ... Selector settings
I, II, III,
Infinitely variable selector with off
Arrow
Alternating current
Direct current
Alternating or direct current
Class II construction
Earthing terminal
Warning symbol
Li-ion RBRC seal
Ni-Cad RBRC seal
Read manual symbol
Wear eye protection symbol
160992A3VR.indb 5
Symbols
Designation/Explanation
Voltage (potential)
Current
Frequency (cycles per second)
Power
Weight
Time
Time
Size of drill bits, grinding wheels, etc.
Rotational speed, at no load
Maximum attainable speed
Revolutions, strokes, surface speed, or-
bits etc. per minute
Zero speed, zero torque...
Speed, torque or position settings. Higher
number means greater speed
Speed is increasing from 0 setting
Action in the direction of arrow
Type or a characteristic of current
Type or a characteristic of current
Type or a characteristic of current
Designates Double Insulated Construc-
tion tools.
Grounding terminal
Alerts user to warning messages
Designates Li-ion battery recycling pro-
gram
Designates Ni-Cad battery recycling pro-
gram
Alerts user to read manual
Alerts user to wear eye protection
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