Allen-Bradley 440G-TZS21UPRH - Allen Bradley /E Tls-Z Gd2 Guard Locking Switch 24Vac/Dc 2000N, 24VAC

The Allen-Bradley 440G-TZS21UPRH is a rugged guard locking switch engineered for safety-critical industrial environments. As part of the Allen-Bradley /E TLS-Z GD2 guard locking family, this unit delivers dependable interlock performance with a robust 2000 N locking force—designed to resist vibration and harsh conditions on the plant floor.

Why this matters

In industrial settings, securing access to dangerous machinery is non-negotiable. The 440G-TZS21UPRH provides a reliable guard interlock solution that helps you keep doors closed during operation, reducing the risk of accidental exposure and unplanned downtime. With 24 VAC/DC compatibility, it integrates smoothly with existing control panels and safety circuits, simplifying retrofits and new installations alike.

• 2000 N locking force ensures doors stay securely shut under typical industrial loads, protecting operators and equipment.
• 24 VAC/DC operation offers flexible wiring options and easier integration into established safety networks.
• TLS-Z GD2 guard locking configuration targets safety interlock performance in demanding applications, supporting reliable machine guarding.
• OEM reliability is backed by genuine Allen-Bradley construction, designed for long service life in tough environments.
• Versatile applications ideal for control panels, machinery guarding, and industrial automation systems across plants and retrofit projects.

Ideal use cases

• Control panels and automation racks where secure door interlock is essential for safe operation.
• Machinery guarding on production lines requiring a dependable guard locking switch to prevent access during active cycles.
• Retrofit projects that need a proven, OEM interlock solution compatible with existing 24 VAC/DC safety circuits.
• Industrial facilities and process equipment where dependable interlock performance minimizes downtime and risk.

Practical considerations for installation and maintenance

• Verify compatibility with your safety PLC and relay wiring to ensure proper signaling and lock/unlock behavior.
• Plan for a straightforward retrofit by leveraging the 24 VAC/DC capability to align with current electrical schematics.
• Incorporate regular functional checks as part of your safety program to confirm the interlock engages and releases as intended.

The Allen-Bradley 440G-TZS21UPRH delivers a purpose-built safety interlock solution for demanding environments. If you’re upgrading safety controls, retrofitting older equipment, or designing new machinery, this guard locking switch provides the dependable protection and seamless integration you need—combining robust performance with the trusted reliability of Allen-Bradley.