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Allen Bradley

Allen Bradley 440N-Z21SS2J Guardmaster Non-Contact Safety Switch

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ManufacturerAllen Bradley

Part number440N-Z21SS2J

Contact Configuration 2 N.C. Safety, 1 N.O Aux

Contact Type Solid State Contacts

Connection Type 6 in Pigtail with 5 Pin Micro (M12) Connector

Housing Material Plastic

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Veteran-owned

CAGE: 9NK75

2 N.C. safety outputs 1 N.O. auxiliary output Solid state contacts Rectangular plastic housing M12 5-pin connector Standard code actuator

Product description

The Allen-Bradley 440N-Z21SS2J is a Guardmaster non-contact safety switch designed for machine safety applications. It features a rectangular plastic housing and a standard code actuator. This switch is equipped with two normally closed (N.C.) safety outputs and one normally open (N.O.) auxiliary output, utilizing solid-state contacts for reliable operation.

This safety switch is suitable for a wide range of industrial automation applications where guarding is essential, such as on machine doors, gates, and enclosures. Its non-contact operation reduces mechanical wear, and it provides a reliable means of monitoring access to hazardous areas. The switch is designed to be compatible with standard safety relays and controllers.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen-Bradley 440N-Z21SS2J. We provide dependable industrial automation components to help you maintain your equipment efficiently. Partner with Stanlo Automation for your surplus MRO needs.

Technical specifications

Contact Configuration	2 N.C. Safety, 1 N.O Aux
Contact Type	Solid State Contacts
Connection Type	6 in Pigtail with 5 Pin Micro (M12) Connector
Housing Material	Plastic
Actuator	Rectangular
Amperage	200 mA

Common applications

Machine guarding

Access control

Industrial automation

Safety interlocks

Assembly lines

Packaging machinery

Compatible systems

Safety relays Safety controllers Machine control panels

Also known as

440N-Z21SS2J, Allen Bradley 440N, Guardmaster Safety Switch, Non-Contact Interlock

Replaces / compatible with

Compatible with Allen-Bradley Guardmaster 440N series accessories.

Technical note

Expert tip

The 5-pin M12 connector on the 440N-Z21SS2J allows for straightforward integration with safety control systems.

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Frequently asked questions

What type of outputs does the Allen-Bradley 440N-Z21SS2J safety switch have?

The Allen-Bradley 440N-Z21SS2J safety switch features two normally closed (N.C.) safety outputs and one normally open (N.O.) auxiliary output. These are solid-state outputs designed for reliable operation in safety-critical applications.