{"product_id":"3va9378-0lb10","title":"3VA9378-0LB10 -  Handle Blocking Device - 3VA 250-600A","description":"\u003cp\u003e\u003cstrong\u003e3VA9378-0LB10 -  Handle Blocking Device - 3VA 250-600A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock confidence in your electrical control setup with the Siemens 3VA9378-0LB10 Lock-Off Accessory. Designed to enhance safety and compliance, this accessory gives you a dependable way to lock breakers into the off position — preventing accidental re-energization during maintenance or emergency work. Whether you’re a professional electrician, facility manager, or DIY enthusiast, this lock-off provides peace of mind without complicating your workflow. Crafted by Siemens, a leader in industrial and commercial electrical components, the 3VA9378-0LB10 lock-off integrates smoothly with compatible breakers and panels. Its compact form factor and straightforward design make installation quick, and its quality construction provides longer useful life in demanding environments. If safety and ease of use matter to you, this lock-off is a smart addition to your electrical safety strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Safety:\u003c\/strong\u003e Keeps breakers secured in the OFF position to protect workers and equipment during service or repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly Design:\u003c\/strong\u003e Simple to install and remove without specialized tools; easy for technicians to work with on the job.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and Practical:\u003c\/strong\u003e Small footprint (3.0″ H × 3.0″ W × 0.5″ D) fits into tight panel spaces without interfering with adjacent components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Brand Quality:\u003c\/strong\u003e Backed by Siemens’ reputation for consistent performance and dependable electrical accessories.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3VA9378-0LB10\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor:\u003c\/strong\u003e Siemens\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Lock-Off Accessory\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 3.0 inches\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 3.0 inches\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 0.5 inches\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e N\/A (Accessory)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperes \/ A.I.C. Rating \u0026amp; Volts:\u003c\/strong\u003e N\/A (Accessory works with compatible breakers)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: This product is an accessory designed to secure compatible circuit breakers. It does not carry current on its own.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e The Siemens 3VA9378-0LB10 meets industry standards for electrical safety accessories and aligns with regulatory expectations where lock-off devices are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Quality:\u003c\/strong\u003e Manufactured to quality guidelines that ensure consistent performance, this accessory supports safe electrical practices across industrial, commercial, and institutional applications.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaintenance and Service Areas – Prevents unplanned energizing while technicians are working.\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities – Adds a layer of personnel protection in manufacturing and processing plants.\u003c\/li\u003e\n\u003cli\u003eCommercial Electrical Rooms – Helps facilities managers enforce lock-out\/tag-out procedures.\u003c\/li\u003e\n\u003cli\u003eEducational and Healthcare Settings – Enhances operational safety and compliance with workplace safety protocols.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eSiemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Siemens AG or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New","offer_id":51710733648171,"sku":"3VA9378-0LB10","price":125.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/3va9378-0lb10","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}