{"id":6281,"date":"2026-06-24T14:39:42","date_gmt":"2026-06-24T06:39:42","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=6281"},"modified":"2026-06-24T14:39:42","modified_gmt":"2026-06-24T06:39:42","slug":"new-original-schneider-xb4bd21-xb4-modular-black-selector-switch","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/new-original-schneider-xb4bd21-xb4-modular-black-selector-switch\/","title":{"rendered":"New Original Schneider XB4BD21 XB4 modular black selector switch"},"content":{"rendered":"
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New Original Schneider XB4BD21 XB4 Modular Black Selector Switch<\/h1>\n<\/div>\n
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1. Product Overview<\/h2>\n<\/div>\n
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The XB4BD21 is a brand-new genuine two-position selector switch belonging to Schneider Electric Harmony XB4 series modular control components. It adopts the standard 22 mm panel mounting structure, equipped with a chrome-plated metal bezel, black long handle actuator and pre-assembled 1 normally open (1NO) slow-break contact block. This self-locking type selector switch is supplied as a fully pre-assembled unit, widely installed on control cabinet panels, machine operation consoles, local control stations of automated equipment, pump and fan control boxes, and various mechanical operation panels. It is designed for manual mode switching in industrial control circuits, featuring excellent mechanical impact resistance, high dustproof and waterproof protection grade, reliable contact conduction performance and standardized modular assembly structure, which can work stably for a long time in complex vibrating, dusty and humid industrial environments.<\/div>\n<\/div>\n
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2. Main Functions<\/h2>\n<\/div>\n
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  1. Two-Position Mode Switching Control<\/strong>\n
    <\/div>\n

    It has two stable working positions. When rotating the black handle to the designated position, the internal normally open contact closes to output a continuous switching signal; the contact keeps its status after releasing hand force without automatic rebound, which is used to switch between automatic and manual modes, local and remote control modes.<\/li>\n

  2. Continuous Control Signal Output<\/strong>\n
    <\/div>\n

    It transmits fixed state signals to intermediate relays, contactor coils or PLC digital input terminals, realizing sustained circuit switching, mode selection and long-term enabling or interlock cut-off of automatic control programs.<\/li>\n

  3. On-site Operation Mode Selection<\/strong>\n
    <\/div>\n

    Provides independent mode switching function separate from remote control system, convenient for switching equipment between commissioning mode, production running mode and maintenance mode on site.<\/li>\n

  4. Modular Function Expansion Compatibility<\/strong>\n
    <\/div>\n

    Fully compatible with all contact blocks, contact bases and dedicated accessories of XB4 series. Users can expand multiple normally open or normally closed contacts flexibly to meet the wiring design requirements of complex interlock and multi-loop control circuits.<\/li>\n

  5. Clear Functional Identification Management<\/strong>\n
    <\/div>\n

    The black handle is a conventional neutral color for mode selection switches in industrial electrical systems, helping operators quickly distinguish mode switching components from start-stop push buttons for standardized operation management.<\/li>\n<\/ol>\n<\/div>\n

    \n

    3. Technical Features<\/h2>\n<\/div>\n
    \n

    Core Electrical & Performance Specification Table<\/h3>\n<\/div>\n
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    Specification Item<\/th>\nTechnical Parameter<\/th>\n<\/tr>\n<\/thead>\n
    Full Model Number<\/td>\nXB4BD21<\/td>\n<\/tr>\n
    Product Series<\/td>\nSchneider Harmony XB4 Modular Control Components<\/td>\n<\/tr>\n
    Actuator Style<\/td>\nBlack long handle, two-position self-locking rotary selector<\/td>\n<\/tr>\n
    Handle Color<\/td>\nBlack<\/td>\n<\/tr>\n
    Operation Mode<\/td>\n2-position maintained (self-locking, no automatic reset)<\/td>\n<\/tr>\n
    Internal Contact Configuration<\/td>\n1 Normally Open (1NO), slow-break structure<\/td>\n<\/tr>\n
    Terminal Marking<\/td>\nTerminals 13-14 for NO contact<\/td>\n<\/tr>\n
    Rated Insulation Voltage (Ui)<\/td>\n600 V<\/td>\n<\/tr>\n
    Rated Impulse Withstand Voltage (Uimp)<\/td>\n6 kV<\/td>\n<\/tr>\n
    AC Rated Operational Current (AC-15)<\/td>\n6 A @ 120 V AC; 3 A @ 240 V AC<\/td>\n<\/tr>\n
    DC Rated Operational Current<\/td>\n0.55 A @ 125 V DC<\/td>\n<\/tr>\n
    Mechanical Endurance Life<\/td>\n1,000,000 rotation cycles<\/td>\n<\/tr>\n
    Electrical Endurance Life (under rated load)<\/td>\n500,000 operation cycles<\/td>\n<\/tr>\n
    Ingress Protection Class<\/td>\nIP66, IP67, IP69K<\/td>\n<\/tr>\n
    Mechanical Impact Resistance Grade<\/td>\nIK06<\/td>\n<\/tr>\n
    Operating Ambient Temperature Range<\/td>\n-40 \u00b0C ~ +70 \u00b0C<\/td>\n<\/tr>\n
    Storage Temperature Range<\/td>\n-45 \u00b0C ~ +85 \u00b0C<\/td>\n<\/tr>\n
    Standard Panel Mount Hole Diameter<\/td>\n22 mm<\/td>\n<\/tr>\n
    Wiring Terminal Type<\/td>\nScrew clamping terminal<\/td>\n<\/tr>\n
    Applicable Wire Cross Section<\/td>\n0.22 ~ 2.5 mm\u00b2 single solid wire; maximum 2 \u00d7 1.5 mm\u00b2 wires with wire ferrules<\/td>\n<\/tr>\n
    Conforming Standards<\/td>\nIEC 60947-1, IEC 60947-5-1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \n

    Structural and Performance Advantages<\/h3>\n<\/div>\n
    \n
      \n
    1. High-Strength Anti-Corrosion Metal Frame Structure<\/strong>\n
      <\/div>\n

      Chrome-plated decorative bezel matched with zinc alloy locking sleeve has outstanding scratch resistance, wear resistance and rust-proof property, adapting to dusty, humid and slightly corrosive workshop application environments.<\/li>\n

    2. Stable Silver Alloy Contact System<\/strong>\n
      <\/div>\n

      Silver-nickel alloy contact tips effectively resist electric arc ablation and surface oxidation after frequent rotary switching, maintaining stable contact resistance during long-term continuous operation and preventing signal interruption caused by poor contact.<\/li>\n

    3. Multi-Layer Sealing Dustproof and Waterproof Construction<\/strong>\n
      <\/div>\n

      Multi-channel internal sealing design realizes high-level ingress protection, effectively blocking dust accumulation and splashing water penetration, and can withstand high-pressure water jet cleaning on equipment surfaces.<\/li>\n

    4. Simple and Efficient Panel Installation Structure<\/strong>\n
      <\/div>\n

      Only one locking nut is needed for front-panel mounting and disassembly, no special tools are required, improving work efficiency during on-site replacement and maintenance.<\/li>\n

    5. Anti-Vibration Anti-Loose Wiring Terminals<\/strong>\n
      <\/div>\n

      Anti-loosening screw structure prevents wire displacement and loose connection under long-term mechanical vibration, ensuring stable and reliable wiring connection.<\/li>\n

    6. Universal XB4 Modular Interface Compatibility<\/strong>\n
      <\/div>\n

      Unified assembly interface supports free combination with additional contact blocks, contact bases and locking accessories, enabling customized circuit expansion schemes according to practical control design demands.<\/li>\n<\/ol>\n<\/div>\n

      \n

      4. Product Dimensions and Weight<\/h2>\n<\/div>\n
      \n

      Dimension Specification Table (Unit: mm)<\/h3>\n<\/div>\n
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      Dimension Description<\/th>\nDimension Value<\/th>\n<\/tr>\n<\/thead>\n
      Overall Width<\/td>\n30<\/td>\n<\/tr>\n
      Overall Height<\/td>\n56<\/td>\n<\/tr>\n
      Rear Protruding Depth after Panel Installation<\/td>\n52<\/td>\n<\/tr>\n
      Complete Overall Outer Size<\/td>\n30 (W) \u00d7 56 (H) \u00d7 52 (D)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
      \n

      Weight Parameters<\/h3>\n<\/div>\n
      \n
        \n
      • Net weight of single unit: approximately 85 grams<\/li>\n
      • Gross weight with individual retail packaging: approximately 98 grams<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"

        New Original Schneider XB4BD21 XB4 Modular Black Selector Switch 1. Product Overview The XB4BD21 is a brand-new genuine two-position selector<\/p>","protected":false},"featured_media":6282,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[105],"product_tag":[],"class_list":["post-6281","product","type-product","status-publish","has-post-thumbnail","product_cat-schneider","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nNew Original Schneider XB4BD21 XB4 modular black selector switch - Autofits<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atfits.com\/es\/producto\/new-original-schneider-xb4bd21-xb4-modular-black-selector-switch\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Original Schneider XB4BD21 XB4 modular black selector switch - Autofits\" \/>\n<meta property=\"og:description\" content=\"New Original Schneider XB4BD21 XB4 Modular Black Selector Switch 1. 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