{"product_id":"allen-bradley-440k-b04025","title":"440K-B04025","description":"\u003ch2\u003eOverview of Allen Bradley 440K-B04025\u003c\/h2\u003e\nThe Allen Bradley 440K-B04025 Guardmaster Centurion is a reliable safety interlock switch designed to secure machine guards and protect personnel. Featuring a right-hand operated bolt, this model offers positive mode locking, ensuring the guard remains closed until conditions are safe for access. It includes two normally closed (NC) safety contacts and one normally open (NO) auxiliary contact with break-before-make contact operation. The switch is housed in a durable die-cast alloy red enclosure rated to IP66 for dust and water resistance, making it suitable for harsh industrial environments. Its robust construction supports up to one million mechanical operations, promising long-term dependability in critical safety applications.\n\n\u003ch2\u003eKey Features of Allen Bradley 440K-B04025\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePositive mode, thumbwheel-operated guard locking with right-hand bolt configuration\u003c\/li\u003e\n\u003cli\u003eTwo normally closed safety contacts for secure interlocking\u003c\/li\u003e\n\u003cli\u003eOne normally open auxiliary contact for additional control functions\u003c\/li\u003e\n\u003cli\u003eBreak-before-make contact action to prevent short circuits and ensure reliable switching\u003c\/li\u003e\n\u003cli\u003eRated for mechanical durability of 1,000,000 cycles\u003c\/li\u003e\n\u003cli\u003eIP66 enclosure rating for protection against dust and powerful water jets\u003c\/li\u003e\n\u003cli\u003eHeavy-duty die-cast alloy housing in distinctive red for high visibility\u003c\/li\u003e\n\u003cli\u003eM20 conduit connection for easy wiring and installation\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range from -25°C to +80°C suitable for various industrial settings\u003c\/li\u003e\n\u003cli\u003eCompact size and weight (approximately 500g) for flexible mounting options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 440K-B04025\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel Type\u003c\/td\u003e\n\u003ctd\u003eStandard Guard Locking Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003e2 Normally Closed (Safety), 1 Normally Open (Auxiliary)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eBreak Before Make\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBolt Type\u003c\/td\u003e\n\u003ctd\u003eRight Hand operated\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 500V AC, 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Switched Current\u003c\/td\u003e\n\u003ctd\u003e2A at 24V DC (Safety), 0.5A at 250V DC (Auxiliary)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMechanical Life\u003c\/td\u003e\n\u003ctd\u003e1,000,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP66 - Dust-tight, protected against powerful water jets\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25°C to +80°C (-13°F to +176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003eDie-cast alloy, red color\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eM20 conduit entry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\nThe Allen Bradley 440K-B04025 is widely used in industrial automation and safety applications where positive guard locking is critical. It is ideal for machine guarding in manufacturing lines, packaging equipment, and robotics cells to prevent access during hazardous operations. The switch ensures compliance with safety standards by providing secure interlocking, preventing machinery start-up until guards are properly closed and locked. Its robust design allows installation in harsh conditions such as food processing plants, heavy machinery workshops, and outdoor environments that require dust and water resistance. The auxiliary contact supports integration with control systems, enabling alerting or interlocking within automated processes. This combination of safety and durability makes it a preferred choice for engineers designing safety circuits and interlock systems.\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eView All Allen Bradley Products\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/top-plc-brands-compared-siemens-allen-bradley-mitsubishi\" target=\"_blank\"\u003eTop PLC Brands Compared: Siemens, Allen Bradley \u0026amp; Mitsubishi\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-194e-sy\" target=\"_blank\"\u003eAllen Bradley 194E-SY Disconnect Switch\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-1321-3r18-b\" target=\"_blank\"\u003eAllen Bradley 1321-3R18-B Resistor Assembly\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870695538987,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_7fc37a05-dd7e-4870-9b76-3d98f43fe0eb.png?v=1723534753","url":"https:\/\/leadtime.ca\/products\/allen-bradley-440k-b04025","provider":"LEADTIME","version":"1.0","type":"link"}