Product Overview
The WLCL is a heavy duty limit switch equipped with an adjustable rod lever actuator. It is used for mechanical position detection, travel-limit control, and motion sequence feedback in industrial machinery and automation systems. The long rod lever actuator is suitable for applications where the moving part needs to contact the switch over a wider range or where the operating point requires adjustment during installation.
This page describes model WLCL only. The product is suitable for cranes, hoists, conveyors, elevators, machine tools, packaging equipment, material handling systems, and other industrial equipment requiring reliable end-position or travel-limit detection.
Product Display
The WLCL uses a heavy duty switch body with an adjustable rod lever actuator. The structure includes an aluminum alloy housing, actuator head, adjustable rod lever, terminal cover, sealing components, and conduit section for field wiring.
Key Technical Data
| Item | WLCL |
|---|---|
| Product type | Heavy duty limit switch |
| Actuator type | Adjustable rod lever |
| Contact structure | Double-circuit contact |
| NO terminal | 3–4 |
| NC terminal | 1–2 |
| Protection degree | IP66 |
| Operating speed | 1 mm to 1 m/s |
| Operating force | 2.55 N max. |
| Release force | 0.1 N min. |
| Pre-travel | 25° ±5° max. |
| Overtravel | 60° min. |
| Movement differential | 16° max. |
| Electrical life | 500,000 operations or above |
Features
- Double-circuit contact structure for NO and NC control logic.
- Adjustable rod lever actuator for flexible mechanical position detection.
- Long lever structure suitable for wide operating ranges and variable contact positions.
- Aluminum alloy housing for high mechanical strength.
- Water-proof and oil-proof construction for industrial environments.
- Built-in contact box with double-spring mechanism for stable switching action.
- IP66 protection degree when properly installed and sealed.
- Suitable for cranes, hoists, elevators, conveyors, machine tools, and automation equipment.
- Other actuator configurations are available in the WL series for different machine structures. This page focuses on the WLCL adjustable rod lever type.
Drawing
Outline and Mounting Dimensions
The drawing is used to confirm the product outline, mounting hole position, actuator head direction, adjustable rod length, conduit position, and installation space of the WLCL. Before installation, confirm that the moving mechanical part can contact the rod lever smoothly within the allowable operating angle.
The actuator should not be used as a direct mechanical stopper. Excessive impact, rod bending, misalignment, or insufficient overtravel allowance may affect contact stability and mechanical life.
Contact Form
WLCL uses a double-circuit contact structure with normally open and normally closed contacts. The normally open contact uses terminals 3–4 and closes when the actuator is operated. The normally closed contact uses terminals 1–2 and opens when the actuator is operated.
Wiring logic should be selected according to the control circuit. Safety-related circuits often use NC logic, but the final selection should follow the electrical design of the equipment.
Ratings
Rated Load Table
| Rated Voltage | Resistance Load NC | Resistance Load NO | Lamp Load NC | Lamp Load NO | Inductive Load NC | Inductive Load NO | Motor Load NC | Motor Load NO |
|---|---|---|---|---|---|---|---|---|
| 125VAC | 10A | 10A | 3A | 1.5A | 10A | 10A | 5A | 2A |
| 250VAC | 5A | 5A | 2A | 1A | 5A | 5A | 3A | 1A |
| 480VAC | 3A | 3A | 1.5A | 0.8A | 3A | 3A | 1.5A | 0.8A |
| 600VAC | 1A | 1A | 1A | 0.5A | 1.5A | 1.5A | 1A | 0.5A |
| 8VDC | 10A | 10A | 6A | 3A | 10A | 10A | 6A | 6A |
| 14VDC | 10A | 10A | 6A | 3A | 10A | 10A | 6A | 6A |
| 30VDC | 6A | 6A | 4A | 3A | 6A | 6A | 4A | 4A |
| 125VDC | 0.8A | 0.8A | 0.2A | 0.2A | 0.8A | 0.8A | 0.2A | 0.2A |
| 250VDC | 0.4A | 0.4A | 0.1A | 0.1A | 0.4A | 0.4A | 0.1A | 0.1A |
Load Type Notes
- Surge current: NC 30A under, NO 20A under.
- Inductive load has a power factor of 0.4 minimum for AC and a time constant of 7 ms maximum for DC.
- Lamp load inrush current is approximately 10 times the steady-state current.
- Motor load inrush current is approximately 6 times the steady-state current.
- For inductive, lamp, or motor loads, the inrush current should be considered during circuit design.
Specifications
Electrical
| Item | Specification |
|---|---|
| Contact resistance | 25 mΩ max., initial value |
| Insulation resistance | 100 MΩ min. at 500 VDC |
| Dielectric strength 1 | 1500 VAC, 50/60 Hz for 1 minute between current-carrying and non-current-carrying metal parts |
| Dielectric strength 2 | 1500 VAC, 50/60 Hz for 1 minute between each terminal and ground |
| Electrical life | 500,000 operations or above |
Mechanical
| Item | Specification |
|---|---|
| Operating speed | 1 mm to 1 m/s |
| Operating frequency | Electrical: 30 operations/min |
| Vibration | 10–55 Hz, 1.5 mm double amplitude |
| Shock durability | 1000 m/s², approx. 100G |
| Shock malfunction | 300 m/s², approx. 30G |
| Weight | About 275 g |
Environmental
| Item | Specification |
|---|---|
| Ambient temperature | -20°C to +80°C, with no icing |
| Humidity | <95% RH |
| Degree of protection | IP66 |
Operating Characteristics
The following operating characteristics apply to model WLCL only. The mechanical stroke and actuator position should be checked according to the installation direction, rod lever setting, and the moving part of the machine.
| Parameter | Description | WLCL |
|---|---|---|
| OF | Operating force, maximum | 2.55 N |
| RF | Release force, minimum | 0.1 N |
| PT | Pre-travel, maximum | 25° ±5° |
| OT | Overtravel, minimum | 60° |
| MD | Movement differential, maximum | 16° |
Selection Guide
Actuator and Motion Direction
WLCL uses an adjustable rod lever actuator. It is suitable for applications where the contact position may vary or where the moving part needs a wider contact range. The rod should be adjusted so that the machine part contacts it smoothly within the allowable operating angle.
Electrical Load and Contact Rating
Before selecting WLCL, confirm whether the circuit is AC or DC, the operating voltage, current, load type, and whether the control system uses NO or NC logic. For motor, lamp, or inductive loads, select the switch according to the inrush current and not only the steady-state current.
Rod Adjustment and Reset
The adjustable rod should be set according to the machine stroke and mounting position. The moving part must operate the rod reliably without bending it or applying excessive impact. After actuation, the lever must return smoothly to its original position.
Installation Environment
WLCL has an IP66 protection degree and is suitable for industrial environments with dust, oil mist, and light water exposure. It is not designed for continuous immersion. Avoid direct high-pressure water jet unless additional protection is used. The cable entry must be properly sealed.
Wiring and Contact Logic
The normally open contact uses terminals 3–4, and the normally closed contact uses terminals 1–2. Select the contact logic according to the control circuit. Safety or fault-detection circuits often use NC logic, but the final wiring method must follow the machine electrical design.