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Allen Bradley

Allen Bradley 440N-Z21SS2H-AS Guardmaster Safety Switch

Allen Bradley Guardmaster Non-Contact Magnetic Safety Switch.

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ManufacturerAllen Bradley

Part number440N-Z21SS2H-AS

Switch Type Non-Contact Magnetic

Actuator Type Stainless Steel

Housing Material Stainless Steel

IP Rating IP67, IP69K

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12-month warranty

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Same-day dispatch

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Non-Contact Magnetic Operation Stainless Steel Construction High IP Rating (IP67/IP69K) SIL 3 & PL e Safety Rating Long Service Life Resistant to Contamination

Product description

The Allen Bradley 440N-Z21SS2H-AS is a Guardmaster Non-Contact Magnetic Safety Switch designed for safety monitoring applications. It features a robust stainless steel housing and actuator, providing a high level of environmental protection (IP67 and IP69K). This switch utilizes non-contact magnetic technology, ensuring long operational life and resistance to mechanical wear.

This safety switch is crucial for machine guarding applications, preventing machinery operation when guards are open. It is commonly used in food and beverage processing, pharmaceutical manufacturing, and other industries requiring high levels of hygiene and washdown capabilities due to its stainless steel construction and sealing.

Stanlo Automation, a veteran-owned distributor, provides a wide range of surplus industrial automation parts. Secure your critical safety components like the 440N-Z21SS2H-AS from us for reliable operation and cost savings.

Technical specifications

Switch Type	Non-Contact Magnetic
Actuator Type	Stainless Steel
Housing Material	Stainless Steel
IP Rating	IP67, IP69K
Series	Guardmaster 440N
Safety Rating	SIL 3, PL e
Voltage	24V DC

Common applications

Machine Guarding

Food & Beverage

Pharmaceutical

Industrial Automation

Hazardous Environments

Washdown Applications

Compatible systems

Guardmaster Safety Relays Allen-Bradley ControlLogix Safety Modules CompactLogix Safety Modules PLC Safety Systems

Also known as

Guardmaster 440N-Z21SS2H-AS Allen Bradley Safety Interlock Magnetic Safety Sensor 440N Series Switch

Replaces / compatible with

This switch is designed to enhance machine safety by providing reliable interlock feedback when used with compatible safety relays and controllers. It replaces less robust mechanical switches in demanding environments.

Technical note

Expert tip

Requires a safety relay or safety controller to monitor its output and ensure safe machine operation. Ensure proper alignment between the switch and actuator for reliable detection.

What happens next?

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Frequently asked questions

What are the key features of the Allen Bradley 440N-Z21SS2H-AS safety switch?

The 440N-Z21SS2H-AS features non-contact magnetic operation, a durable stainless steel housing and actuator, and high IP ratings (IP67/IP69K) for washdown environments. It also meets SIL 3 and PL e safety standards.