Double Circuit Limit Switch WL - Durable, Waterproof & Pressure-Proof | China Suppliers & Factory
Advantage
All products of the company can be customized for production according to user usage scenarios.
Working principle and structure
The working principle of the WL limit switch is based on a mechanical trigger mechanism. When the detected object reaches the preset position, the mechanical structure in the switch is acted upon by an external force, the contact is triggered, and a switch signal is generated. This signal can be used to start, stop or reverse the motor, and can also be used in other control loops to ensure that the equipment operates according to the set logic.
Common types and characteristics
WL limit switches are available in two types: contact and non-contact. Contact limit switches use the collision between mechanical contacts and blocks to switch the circuit on and off; non-contact limit switches include reed switches, photoelectric switches, inductive switches, etc., which are commonly used in equipment such as elevators. These types have the characteristics of high environmental resistance, high durability and high recognition, and can adapt to various complex production needs and environmental conditions.
Environmental Characteristics
| Normative reference | Product | IEC60947-5-1, EN60947-5-1, UL508, CSAC22-2N°14 |
| Components | IEC60204-1, EN60204-1 | |
| Ambient temperature | Operation | -10..+80℃ |
| Storage | -40..+80℃ | |
| Vibration resistance | Compliant with IEC60068-2-6 | 10-55Hz, 1.5mm Double-amplitude |
| Shock resistance | Compliant with IEC60068-2-27 | Maximum 300ms² (30G less than) |
| Protection class | IP67 NEMA 3, 4, 13 | |
| Mechanical life | 15,000,000 times | |
Characteristics of contact module
| Rated operating characteristics |
AC-15: A300 (Ue=240V, Ie=3A) Ith=10A DC-13: Q300 (Ue=250V, Ie=0.27A) Complies with IEC60947-5-1 Appendix Table A EN60947-1 |
| Rated insulation voltage |
Between terminals of the same pole: AC1000V (600V) 50/60Hz 1min Between live metal parts and ground wire: AC2200V (1500V) 50/60Hz 1min Uimp 2.5kV Between terminals and non-conductive metal parts: AC2200V 50/60Hz 1min Uimp 2.5kV |
| Insulation resistance | >100MΩ at 500V |
| Operating frequency | 120 times/min |
| Electrical life | 750,000 times |
| Contact resistance | Less than 25MΩ |
| Model | WL-CA2-2 WL-CA2-2-Q |
WL-CA32-41 | WL-CL | WL-D | WL-D1/D2/D3 | WL-NJ/NJ-30 NJ-2/NJ-S2 |
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| Triggering | Convex trigger | Convex trigger | Any moving part | At the end | Convex trigger | Any moving part |
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| Single stage 1C/O Single-pole Type Za |
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| Contact operation | Contacts attract Contacts separate | |||||
| Max triggering speed | 1.3m/s | 1.3m/s | 1.3m/s | 0.5m/s | 0.5m/s | 1.3m/s |
| Max triggering force | 1360g | 1200g | 142g | 2720g | 2720g | 120g |
| Min restoring force | 227g | 28g | 910g | 910g | 50g | |
| Weight (kg) | 0.330 | 0.340 | 0.300 | 0.251 | 0.251 | 0.286 |
Overall and installation dimensions
Frequently Asked Questions (FAQ)
Can the WL limit switch be customized?
Yes, all products of the company can be customized for production according to user usage scenarios.
What is the working principle of the WL limit switch?
It operates on a mechanical trigger mechanism. When the detected object reaches the preset position, the mechanical structure is acted upon by an external force, triggering the contact and generating a switch signal.
What types of WL limit switches are available?
They are available in contact types (which switch the circuit via physical mechanical collision) and non-contact types (such as reed switches, photoelectric switches, and inductive switches).
What is the operating temperature range for these switches?
The standard operating temperature ranges from -10°C to +80°C, and the storage temperature ranges from -40°C to +80°C.
What is the mechanical life expectancy of the WL limit switch?
The WL limit switch is highly durable, offering a mechanical life of up to 15,000,000 operations.
What protection class rating do these limit switches carry?
They feature an IP67 protection class rating, conforming to NEMA 3, 4, and 13 standards, ensuring strong resistance to environmental dust and water ingress.