Actuators with built-in limit switches

Medium size types CLA & CLB to 25,000 N

The type CLA & CLB actuators offer the convenience of built in rotary limit switches fitted under an IP65 cover.  The switches are used for end of stroke signals and can be easily adjusted.  There are options to add a third switch for intermediate positions or a 5 k0hm rotary potentiometer to give an analogue signal for positioning.

As standard the switches rated at 250 VAC 21 A and 30 VDC 14 A are used to externally switch off the motor.  Optionally actuators with DC motors can be supplied with the limit switches directly wired to the motor.

Available motors are DC (24 V standard, 12 & 36 V optional) or AC (1-phase or 3-phase).  Type CLA has an ACME thread and maximum duty cycle of 15% (DC motor) or 30% (AC motor).  Type CLB used a ball screw for higher efficiency and duty cycles up to 100%.  Here motors are usually fitted with brakes.

Model Ratiocode DC linear actuator AC linear actuator Max stroke
    speed mm/s max force N motor speed mm/s max force N motor  
CLA20 RN1 16 1,100 24V 5A 11 1,500 60 W 300
CLA20 RL1 6 1,900 24V 5A 5.5 2,000 60 W 300
CLA20 RN2 48 600 24V 5A 30 1,000 60 W 300
RL2 24 1,000 24V 5A 15 1,100 60 W 300
CLA25 RXL1 4 4,000 24V 5A 2 5,000 90 W 3001
CLA25 RH1 50 1,200 24V 9A 47 1,250 120 W 3001
CLA25 RL2 16 3,600 24V 9A 7.5 4,800 90 W 3001
CLA25 RH2 100 800 24V 9A 93 790 120 W 3001
CLA28 RN2 0.8 10,000 24V 4A 1.2 9,600 60 W 800
CLA28 RV2 5 9,500 24V 9A 2.4 5,500 60 W 800
CLA28 RH2 8 6,300 24V 9A 3.6 3,600 60 W 800
CLA30 RXL1 2.7 1,000 180 W 800
RV1 46 5,400 550 W 800
CLA40 RXL1 2.1 12,000 370 W 8002
RV1 46 5,400 550 W 8002
CLA50 RXL1 2.5 25,000 370 W 8002
  RV1 56 9,300 1,100 W 8002
  • 1 Also available are models CLA25S and CLA25M with similar performance but strokes up to 800 mm.
  • 2 Longer strokes to 1,500 mm possible by special modification.
  • Table values represent the maximum and minimum forces and speeds.
  • CLB models with ball screw suit duties up to 100%.
  • CLB25 with AC motor - Linear speeds 2.5 to 58 mm/s, forces 1,120-5,000 N, strokes to 400 mm.
  • CLB27 with DC motor - Linear speeds 5 to 125 mm/s, forces 410 to 5,000 N, strokes to 400 mm.
  • CLB30 with AC motor - 3.5 to 60 mm/s, 3,300 to 9000 N
  • CLB40 with AC motor - 2.5 to 56 mm/s, 5,400 to 12,000 N
  • CLB50 with AC motor - 4.2 to 47 mm/s, 11,800 to 25,000 N
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