Soft Starters

Soft Starters

MOTOR CONTROLLER

RANGE OF APPLICATION

Motor drive:

  • Packaging industry
  • Printing presses
  • Valve control in power stations
  • Bell controls

In general:

  • Compressor systems
  • Machine tools
  • Conveyor systems
  • Looms
  • Fans and ventilation systems
  • Woodworking machines

SUPPLEMENTAL TECHNICAL DATA

  • Soft starter, three controlled phases
  • Soft starter, two controlled phases
  • Soft starters with break system
  • Initial torque limiting system, 1 or 3 controlled phases

Benefits:

  • Easy, rapid mounting
  • Immediately ready for use
  • Very easy to adjust
  • Contact-protected
  • More compact than standard soft starters
  • Standardized module widths

APPLICATIONS

  • Used to delay the start and stop of 3-phase motors:
    • Compressor systems
    • Machine tools
    • Conveyor systems
    • Looms
    • Fans and ventilation systems
    • Woodworking machines
    • Can be used instead of Star/Delta starters
    • Packaging industry
    • Printing presses

SOFT STARTER UP TO 45 kW/400 VAC

  • AC electronic motor controller with soft start and soft stop or with by-pass function (from 30A)
  • Rated operating current:
  • LAK type up to 25 A AC-3, AC-53a, AC-58a (11 kW 400-480 V AC) or up to 30 A AC 53b (15kW with jumper)
  • LAT type up to 86 A *Root 3* switch with 3 controlled phases (see Special Catalogue)
  • Rated operating voltage up to 600V AC, 50/60 Hz
  • Meets requirements of EN 60947-4-2
  • Includes integrated microcomputer for optimal performance
  • Start and stop times can be regulated between 0.5 s and 10 s (20 s)
  • Initial torque can be adjusted up to 85% of nominal torque, Kick start option available
  • LED operating status indicator
  • Potential-free control inputs
  • Control voltage range 24 V AC/DC to 480 V AC/DC
  • Degree of protection IP 20
  • Conpact modular structure, 45 mm and 90 mm installation width on DIN rail

SOFT STARTER WITH DYNAMIC BREAK

  • Rated operating voltage up to 480 V AC 50/60 Hz
  • Rated operating current from 1 A up to 25 A AC-3, AC-53a, AC-58a (15PS, 400-480 V AC)
  • Start time can be set between 0.5 to 10 secs.
  • Initial torque can be set to between 0% - 85% of nominal torque. Kickstart option available.
  • Control voltage range 24 V to 480 V AC/DC
  • Braking current adjustable between 0-50 A DC
  • Super-rapid brake function with automatic motor magnetic field reduction.
  • Slow speed function: The motor operates at only 7.5 to 10% of the nominal speed
  • Automatic down-time detection
  • Output signal for full control (by-pass) and for the control of a mechanical

MOTOR CONTROLLER

RATED CURRENT

  • RATED VOLTAGE
  • CONTROL VOLTAGE
  • DIM. (WxHxD) mm
  • ORDER NO.

3 A

  • 208-240 VAC 50/60 Hz
  • 24-230 V AC/DC
  • 22,5x110x128,1
  • LAK32035

3 A

  • 400-480 VAC 50/60 Hz
  • 24-480 V AC/DC
  • 22,5x110x128,1
  • LAK34035

15 A

  • 208-240 VAC 50/60 Hz
  • 24-230 V AC/DC
  • 45x110x128,1
  • LAK32155

15 A

  • 400-480 VAC 50/60 Hz
  • 24-480 V AC/DC
  • 45x110x128,1
  • LAK34155

15 A

  • 550-600 VAC 50/60 Hz
  • 24-480 V AC/DC
  • 45x110x128,1
  • LAK36155

25 A

  • 208-240 VAC 50/60 Hz
  • 24-230 V AC/DC
  • 90x110x128,1
  • LAK32255

25 A

  • 400-480 VAC 50/60 Hz
  • 24-480 V AC/DC
  • 90x110x128,1
  • LAK34255

25 A

  • 550-600 VAC 50/60 Hz 24-480 V AC/DC
  • 90x110x128,1
  • LAK36255

Soft Starters

MOTOR CONTROLLER WITH BY-PASS

WITHOUT BY-PASS

  • WITH BY-PASS
  • RATED VOLTAGE
  • DIM. (WxHxD) mm
  • ORDER NO.

25 A AC-53a

  • 30 A AC-53b
  • 400–480 V
  • 90x110x128,1
  • LAKB4255

35 A AC-53a

  • 50 A AC-53b
  • 400–480 V
  • 180x145x144,8
  • LATB4355

60 A AC-53a

  • 86 A AC-53b
  • 400–480 V
  • 180x145x144,8
  • LATD4605

Soft Starters

SOFT STARTER WITH DYNAMIC BREAK

WITHOUT BY-PASS

  • WITH BY-PASS
  • RATED VOLTAGE
  • DIM. (WxHxD) mm
  • ORDER NO.

25 A AC-53a

  • 30 A AC-53b
  • 400–480 V
  • 90x110x128,1
  • LAB34255

Soft Starters

TORQUE LIMITER

  • Unit used to soft start three-phase and single-phase motors with rated operating voltages of 230 to 600 V, 50 or 60 Hz
  • Rated operating current up to 25 A AC-3 (11 kW 400 V 3 phases)
  • Operating voltage range: 230 to 600 V AC, 50 or 60 Hz
  • Adjustable ramp-up time 0.5 s to 5 s
  • Initial torque can be set to between 0% - 85% of nominal torque.
  • LED operating status indicator
  • Degree of protection IP 20
  • Conpact modular structure, 45 mm installation width on DIN rail
  • Genuine contact-free motor contactor for extremely long service life
  • Unlimited number of start/stop operations per hour.

RATED CURRENT

  • RATED VOLTAGE
  • DIM. (WxHxD) mm
  • ORDER NO.

15 A

  • 208-480 V AC
  • 45x110x128,1
  • LAD34150

25 A

  • 208-480 V AC
  • 45x110x128,1
  • LAD34250

25 A

  • 550-600 V AC
  • 45x110x128,1
  • LAD36250

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