Allen-Bradley 440G-TZS21UTRH Guardmaster GuardLock Safety Interlock Switch

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Allen-Bradley 440G-TZS21UTRH Guardmaster GuardLock Safety Interlock Switch

Product Overview

The Allen-Bradley 440G-TZS21UTRH is a Guardmaster GuardLock safety interlock switch designed for machine safety applications, ensuring compliance with ISO 13849-1 (PLd/SIL2) standards. It features a bolt-actuated locking mechanism with electrically controlled release, providing secure access control to hazardous areas while maintaining safety integrity .

Key Features

1. Safety & Locking Mechanism

   • Electrically released bolt locking (24V DC) for controlled access .

   • 2kN (2000N) holding force to resist unauthorized door opening under pressure .

   • Dual-channel safety outputs (OSSDs) for fault detection and redundancy .

2. Robust Design

   • IP67-rated enclosure for dust/water resistance in harsh environments .

   • Plastic housing (red) with M12 electrical connectors for easy integration .

3. Compliance & Certifications

   • Meets ISO 13849-1 (PLd) and IEC 62061 (SIL2) for functional safety .

Technical Specifications

Applications

• Robotic workcells requiring secure access control.

• Presses and stamping machines with safety guarding.

• Packaging lines with interlocked safety doors.

The structure and details of the product：

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