What is the 440G-T27178?
The 440G-T27178 is a Allen-Bradley managed switches. Overview The Allen-Bradley 440G-T27178 Guardmaster TLS-GD2 safety interlock switch is engineered to provide robust personnel and machinery protection within industrial environments. This critical component integrates secure access control and reliable safety performance, particularly in hazardous areas where unauthorized entry or accidental machine operation could lead to serious incidents. Designed for operational efficiency, the 440G-T27178 features a power-to-lock mechanism, ensuring machine guards remain securely locked until it is safe to access. Its design and functionality underscore Allen-Bradley's commitment to advanced industrial safety solutions, making it an indispensable asset for modern manufacturing and processing facilities. Key Features Guardmaster TLS-GD2 Series: Part of Allen-Bradley's Guardmaster family, ensuring proven reliability and performance in safety applications. Power-to-Lock Mechanism: Provides secure guard locking, preventing access until power is removed, which enhances operational safety. Versatile Supply Voltage: Operates seamlessly with 110 V AC or DC power sources, offering installation flexibility in diverse setups. Comprehensive Contact Configuration: Equipped with 2 N.C. safety contacts and 1 N.O. auxiliary contact for flexible integration into control circuits. High Locking Force: Delivers superior locking strength to withstand tampering and ensure machine guards remain securely closed. Durable IP67/IP69K Protection: Guarantees robust resistance against dust ingress, water submersion, and high-pressure, high-temperature washdowns. Compact and Robust Industrial Design: Built to endure harsh industrial conditions while optimizing space within safety systems. Technical Specifications Allen-Bradley Code: 440G-T27178 Series: Guardmaster TLS-GD2 Type: Safety Interlock / Guard Locking Switch Supply Voltage: 110 V AC/DC Contact Configuration: 2 N.C. (safety), 1 N.O. (auxiliary) Solenoid Contacts: 1 N.C. / 1 N.O. Actuator Type: GD2 standard Connection Type: M20 conduit, 1/2" NPT adapter Housing Material: High-grade Plastic Protection Rating: IP67 / IP69K Operating Temperature: –25 °C to +60 °C Certifications: CE, UL, cUL Logic: Break-before-make contact configuration Industrial Applications Advanced Machine Guarding Systems: Integral for preventing access to dangerous machinery during operation or maintenance. Critical Industrial Safety Circuits: Essential for implementing fail-safe mechanisms in complex automation setups. High-Speed Packaging and Processing Lines: Ensures operator safety while maintaining operational efficiency in industries such as food & beverage and pharmaceuticals. Robotics and Automated Manufacturing Lines: Provides reliable guard locking for robotic cells and automated work zones. Hazardous Areas with Access Control: Ideal for environments requiring stringent control over entry to dangerous processes or equipment. Pharmaceutical and Chemical Processing: Its robust protection ratings make it suitable for environments requiring frequent washdowns. Product Benefits Uncompromised Safety: Offers high-level safety with a dependable guard locking function that actively protects personnel. Exceptional Reliability: Engineered to deliver consistent performance even in demanding industrial environments. Maximum Protection: Its strong locking force provides peace of mind, ensuring guards remain locked when safety is paramount. Durability and Longevity: Built with robust materials and high protection ratings to withstand harsh conditions, extending product life. Global Compliance: CE, UL, and cUL certifications ensure compliance with international safety standards, simplifying integration into global operations. Why Choose This Model? The Allen-Bradley 440G-T27178 stands out as a superior choice for industrial safety due to its combination of advanced Guardmaster TLS-GD2 technology and rugged construction. Its power-to-lock functionality provides a critical safety advantage, ensuring machinery remains inaccessible during hazardous conditions. With versatile voltage input and comprehensive contact configurations, it offers significant flexibility for integration into existing and new safety circuits. The robust IP67/IP69K protection rating and wide operating temperature range ensure reliable operation in challenging industrial settings, minimizing downtime and maximizing personnel safety. Frequently Asked Questions What is the primary function of the Allen-Bradley 440G-T27178? The Allen-Bradley 440G-T27178 is a Guardmaster TLS-GD2 series safety interlock switch with a guard locking function, designed to secure machine guards and prevent access until hazardous conditions are cleared. What supply voltage does the 440G-T27178 require? This safety interlock switch is versatile, operating seamlessly with either 110 V AC or 110 V DC power sources, offering flexibility for various industrial installations. What is the contact configuration for the 440G-T27178? It features a comprehensive contact configuration including 2 N.C. (normally closed) safety contacts and 1 N.O. (normally open) auxiliary contact for diverse control circuit integration. What are the environmental protection ratings for this device? The 440G-T27178 boasts robust IP67 and IP69K protection ratings, ensuring resistance against dust ingress, water submersion, and high-pressure, high-temperature washdowns common in demanding industrial environments. What certifications does the Allen-Bradley 440G-T27178 hold? This safety interlock switch is CE, UL, and cUL certified, ensuring compliance with international safety standards for global operational compatibility. In what types of industrial applications is the 440G-T27178 most beneficial? It is ideal for advanced machine guarding, critical industrial safety circuits, high-speed packaging lines, robotics, automated manufacturing, and hazardous areas requiring stringent access control, especially where washdowns are frequent. Request a Quote For detailed pricing, availability, and lead time on the Allen-Bradley 440G-T27178 Guardmaster TLS-GD2 safety interlock switch, please contact PROIND Electronics International. Our sales engineers are available to assist with your specific application requirements and provide a customized quote.







