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double circuit limit switch

Double Circuit Limit Switch WL - Durable Aluminum Alloy, Waterproof, Oil-Resistant | Reliable China Suppliers & Factory

Introducing our Double Circuit Limit Switch, a product widely utilized in various applications and manufactured by trusted suppliers in China. This limit switch features a robust one-piece cast aluminum alloy housing, ensuring high mechanical strength and durability. Its oil-resistant, waterproof, and pressure-proof design makes it ideal for demanding environments, Maintenance is made easy with the integrated position indicator plate, allowing for quick and efficient adjustments. With a versatile range of actuators available, our limit switch is user-friendly and adaptable to different needs. The built-in contact seat boasts a double reed design, providing a long mechanical life and reliability for your operations, Choose our limit switch, crafted by a leading factory in China, for superior performance and quality in your automation systems
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    Product Detail

    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, CSA C22-2 N°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) Ithe=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
    Triggering Convex trigger Convex trigger Any moving part At the end Convex trigger Any moving part
    Triggering type picture-2-6   picture-3-2 picture-4-2 picture-5-1 picture-6-1
    Single stage 1C/O
    Single-pole Type Za    		 picture-7-1 picture-8-1 picture-9-1 picture-10-1 picture-11-1wps10 picture-12
    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 0.330 0.340 0.300 0.251 0.251 0.286

    Overall and installation dimensions

    Overall and installation dimensions - View 1
    Overall and installation dimensions - View 2
    Frequently Asked Questions (FAQ)
    QCan WL limit switches be customized for specific scenarios?
    Yes, all products of the company can be fully customized for production based on specific user application scenarios and requirements.
    QWhat is the working principle of the WL limit switch?
    The switch functions via a mechanical trigger mechanism. When an object reaches a preset position, external force acts on the internal structure, triggering the contact to output a control signal.
    QWhat types of WL limit switches are available?
    WL limit switches come in contact types (using mechanical collision) and non-contact types (such as reed switches, photoelectric switches, and inductive switches) to suit various working environments.
    QWhat is the ambient operating temperature range?
    The operational ambient temperature range is -10°C to +80°C, and the storage temperature range is -40°C to +80°C.
    QWhat are the protection ratings and mechanical lifespan?
    The switches feature an IP67 protection rating (NEMA 3, 4, 13) and are designed for high durability, with a mechanical life of up to 15,000,000 operations.
    QWhat is the maximum triggering speed of these switches?
    The maximum triggering speed varies by model, ranging from 0.5m/s (for models like WL-D and WL-D1/D2/D3) up to 1.3m/s (for models like WL-CA2-2, WL-CL, and WL-NJ).

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