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Allen Bradley

Allen Bradley 440N-Z21SS2JN Guardmaster Non-Contact Safety Switch

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ManufacturerAllen Bradley

Part number440N-Z21SS2JN

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

Connection Type 5-Pin Quick Disconnect (M12)

Housing Material Plastic

Actuator Rectangular

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12-month warranty

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Veteran-owned

CAGE: 9NK75

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

Product description

The Allen-Bradley 440N-Z21SS2JN is a SensaGuard non-contact safety switch featuring a rectangular plastic housing and equipped with a 5-pin M12 quick-disconnect connector. It provides two normally closed (N.C.) safety outputs and one normally open (N.O.) auxiliary output, utilizing solid-state contacts for dependable safety interlock functions.

This switch is designed for applications requiring reliable monitoring of machine guards, doors, and enclosures. Its non-contact operation minimizes wear and tear, contributing to increased longevity. The 440N-Z21SS2JN is suitable for integration into safety circuits managed by safety relays or controllers, ensuring compliance with industrial safety standards.

Stanlo Automation, your trusted veteran-owned surplus parts distributor, stocks the Allen-Bradley 440N-Z21SS2JN. We help you secure essential industrial components, ensuring your automation systems remain operational and safe. Choose Stanlo Automation for quality surplus parts and dedicated service.

Technical specifications

Contact Configuration	2 N.C. Safety, 1 N.O Aux
Connection Type	5-Pin Quick Disconnect (M12)
Housing Material	Plastic
Actuator	Rectangular
Contact Type	Solid State Contacts
Standards	C-TICK,CE,CUL,KC,UL

Common applications

Machine safety

Guard monitoring

Access control

Industrial automation

Packaging equipment

Assembly lines

Compatible systems

Safety relays Safety controllers Machine control panels

Also known as

440N-Z21SS2JN, Allen Bradley SensaGuard, Guardmaster Safety Switch, Non-Contact Interlock

Replaces / compatible with

Compatible with Allen-Bradley Guardmaster 440N series accessories.

Technical note

Expert tip

The 440N-Z21SS2JN offers two safety NC outputs and one auxiliary NO output, suitable for safety interlock circuits.

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Frequently asked questions

What is the connection type for the Allen-Bradley 440N-Z21SS2JN safety switch?

The Allen-Bradley 440N-Z21SS2JN safety switch uses a 5-pin M12 quick-disconnect connector. This standard connector facilitates easy and secure installation within industrial safety systems.