Product Description
Metal shell series ALS-M
| Actuator type | Image | Actuator type | Image | Actuator type | Image | Actuator type | Image |
Rounded plunger | ![]() | Roller plunger | ![]() | Roller plunger | ![]() | Twist lever | ![]() |
Adjustable twist lever | ![]() | Rod actuator | ![]() | Spring rod | ![]() | Palpus | ![]() |
Note: the number of products poles is one normally open and one normally closed (1NO1NC).
Go download center and get the products datasheet
How does the limit switch wiring?
| Description | Image show |
| Step 1: unscrew the screw, take off the cover | ![]() |
| Step 2: install the wire through cable gland | ![]() |
| Step 3: wiring | ![]() |
| Step 4: tighten the screws of the cover | ![]() |
Note:
- Tightening torque 0.5~0.6Nm of contact model.
- Tightening torque 0.5~0.6Nm of cover.
- Avoid the damage of seal ring, pls. even tighten the screws.
Technical Data of ALS1-M
| Standards | IEC60947-5-1 GB14048.5 |
| Rated insulation voltage Ui | 400V AC |
Rated impulse withstand voltage uimp | 1890V AC 50Hz. 1min |
| Conventional thermal current Ith | 10 Ampere |
| Product certification | CCC, CE, RoHS |
| Mechanical endurance | More than 10 million times |
| Electrical endurance | 0.5 million times/AC-15 at 240V/3A |
| Operation temperature | -20℃ ~70℃ |
| Humidity | < 95%RH |
| Protection class | IP65 |
| Operating frequency | 7,200 times/hour (mechanical endurance) |
| Shock amplitude | ≤ 10g |
| Impact amplitude | 10~55Hz 1.5mm |
| Contact resistance | < 25mΩ |
| Contact material | AgNi10/Cu |
| Wire specifications | 2×(0.5…0.75)mm2 1×(0.5…1.5)mm2 |
Plastics shell series ALS-P
| Actuator type | Image | Actuator type | Image | Actuator type | Image | Actuator type | Image | Actuator type | Image |
| Roundedplunger | ![]() | Roller plunger | ![]() | Roller lever | ![]() | Angular roller lever | ![]() | Twist lever | ![]() |
| Adjustable twist lever | ![]() | Rod actuator | ![]() | Spring rod | ![]() | Rounded plunger | ![]() | Roller plunger | ![]() |
Note: the number of products poles is one normally open and one normally closed (1NO1NC).
Go downland center and get the products datasheet
How does the limit switch wiring?
| Step 1: Unscrew the screw, take off the cover | ![]() |
| Step 2: Install the wire through cable gland | ![]() |
| Step 3: Wiring | ![]() |
| Step 4: Tighten the screws of the cover | ![]() |
| Step 5:Tighten the cable gland | ![]() |
Note:
- Tightening torque ≤0.7Nm of contact type.
- Tightening torque ≤1Nm of cover.
- Pay attention to cover installed.
Technical Data of ALS1-P
| Standards | IEC60947-5-1 GB14048.5 EN50047 |
| Rated insulation voltage Ui | 400V AC |
| Rated impulse withstand voltage uimp | 1890V AC 50Hz. 1min |
| Conventional thermal current Ith | 10 Ampere |
| Product certification | CCC CE RoHS |
| Mechanical endurance | More than 10 million times |
| Electrical endurance | 0.5 million times/AC-15 at 240V/3A |
| Ambient temperature | -25℃ ~70℃ |
| Humidity | < 95%RH |
| Protection class | IP67 |
| Operating frequency | 6,000 times/hour (Mechanical Endurance) |
| Shock amplitude | ≤ 10g |
| Impact amplitude | 10~55Hz 1.5mm |
| Contact resistance | < 25mΩ |
| Contact material | AgNi10/Cu |
| Safety circuits | Yes |
| Wire specifications | 2×(0.5…0.75)mm2 1×(0.5…1.5)mm2 |
FAQs
1. What is function of limit switch?
2. What is a limit switch used for?
3. How many types of limit switches are there?
4. What is a mechanical limit switch?
5. Why is the limit switch important?
6. What is the difference between proximity switch and limit switch?




























