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China APL Series Limit Switch Box Factory - Compact Weatherproof Limit Switches Suppliers for Actuators and Valves
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China APL Series Limit Switch Box Factory - Compact Weatherproof Limit Switches Suppliers for Actuators and Valves
China APL Series Limit Switch Box Factory - Compact Weatherproof Limit Switches Suppliers for Actuators and Valves

China APL Series Limit Switch Box Factory - Compact Weatherproof Limit Switches Suppliers for Actuators and Valves

The APL Series Limit Switch Box is an innovative, compact solution designed for performance and reliability. This weatherproof enclosure is fitted with internal adjustable position switches and an external visual indicator, making it an ideal choice for use with quarter turn actuators and valves. Manufactured in China, this product adheres to NAMUR standard mounting and drive, ensuring seamless integration, **Key Features of the APL Series Limit Switches:**, - Constructed from solid and compact aluminum die-cast housing, finished with durable polyester powder coating for enhanced longevity, - Includes a bolt-on visual position indicator for easy monitoring, - Equipped with a Quick-Set spring-loaded splined cam, allowing for hassle-free adjustments without the need for tools after initial setup, - Designed with dual cable entries to facilitate versatile installation options, - Features captive cover bolts, preventing loss when the cover is removed—ideal for factory environments, - Comes with a NAMUR standard stainless steel shaft and bracket, ensuring durability and resistance to corrosion, As a trusted supplier, our factory produces the APL Series Limit Switch Box to meet the highest standards in the industry, providing reliable solutions for your automation needs
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    Product Detail

    Specifications

    Model APL-2N APL-3N APL-4N APL-5N
    Standard Option Standard Option Standard Option Standard Option
    Enclosure Explosion proof IP67 IP67 Eexd II BT6 IP67 Eexd II CT6
    Temperature Range 25° C ~ 85 ° C
    Conduit Entries 2×1/2″NPT PT 1/2″PF1/2 2×3/4″NPT PT3/4TF3/4″ 2×3/4″NPT PT3/4″PF3/4 2×3/4″NPT T3/4″PF3/4″
    Terminal Strips 8 - 8 9-24 8 9-24 8 9-24
    Position Indicators 0°~90 ° 0°~180° 0°~90° 0°~180° 0°~90° 0°~180° 0°~90° 0°~180°
    Closed: Red, Open: Yellow
    Switches Mechanical Switches (Option: Proximity Sensor)

    Materials

    Housing Cover & Body Aluminium die-casting
    Shaft Stainless Steel
    Indicator Cover Polycarbonate
    Indicator ABS/Polycarbonate
    Cam Polycarbonate
    Spring Stainless Steel
    Housing Cover Bolt Stainless Steel
    O-Ring NBR
    Bushing Bronze
    E-Ring (shaft) Stainless Steel
    Earth Lug Stainless Steel
    Bracket Carbon Steel Powder coated
    APL Limit Switch Box Dimension Drawing
    APL Limit Switch Box Wiring Diagram

    Frequently Asked Questions (FAQ)

    What are the enclosure ratings for the APL series limit switch boxes?
    The APL-2N and APL-3N models feature a standard IP67 weatherproof enclosure. The APL-4N offers IP67 Eexd II BT6 explosion proof protection, while the APL-5N provides IP67 Eexd II CT6 explosion proof protection.
    What is the operating temperature range for these limit switch boxes?
    All models in the APL series are designed to operate reliably within a temperature range of 25°C to 85°C.
    What materials are used in the construction of the APL limit switch box?
    The housing cover and body are made of durable die-cast aluminium. Key internal components like the shaft, spring, cover bolts, E-ring, and earth lug are made of stainless steel, while the bracket is constructed from powder-coated carbon steel.
    Can I get proximity sensors instead of standard mechanical switches?
    Yes, while mechanical switches are standard, proximity sensors are available as an option across the entire APL series.
    How does the visual position indicator display valve status?
    The position indicator provides clear visual confirmation using color codes: Red indicates "Closed" and Yellow indicates "Open". It supports indication angles of 0°~90° and 0°~180°.