3SQ1, direct-on-line (DOL) starters

●   Controlling the direct start and halt of the electromotor

●   Protecting the motor from overload and phase failure

●   Used in remote making and breaking circuit and frequently starting and controlling motor

Instruction of type code

Technical specifications

●   Type: 3SQ1

●   Standards: IEC 60947-4-1, IEC 60439-1

●   Rated working current (A): 09, 12, 18, 25, 32, 40, 50, 65, 80, 95

●   Rated operational voltage Ue (V): 690

●   Rated insulation voltage Ui (V): 690

●   Rated impulse withstand voltage Uimp (kV): 8

●   Rated frequency (Hz): 50/60

●   Control (2 pushbuttons mounted on enclosure cover): 1 green Start button “I”; 1 red Stop/Reset button “O”

●   Enclosure:

   3SQ1-09/12/18 Double insulated, degree of protection IP65;

   3SQ1-25/32 Double insulated, degree of protection IP55;

   3SQ1-40/50/65/80/95 Metal, degree of protection IP65

●   Electrical life (× 10 times): 5

●   Mechanical life (× 10 times): 50

●   The model of matched AC contactor: 3SC8

●   The model of matched thermal relay: 3SR8

●   Ambient air temperature (ºC): -5 to +40, max. 95 % humidity

●   Storage temperature (ºC): -40 ~ +75

●   Maximum operating altitude (meters): 2000

Selection and ordering data

Outline and installation dimensions