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Allen Bradley

Allen Bradley 440N-Z21US2HN Guardmaster Non-Contact Safety Switch

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ManufacturerAllen Bradley

Part number440N-Z21US2HN

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

Contact Type Solid State Contacts

Connection Type 6 Inch Pigtail With 8-Pin Micro (M12) Connector

Housing Material Plastic

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CAGE: 9NK75

2 N.C. safety outputs 1 N.O. auxiliary output Solid state contacts Rectangular plastic housing 6-inch pigtail with 8-pin M12 connector Standard code actuator

Product description

The Allen-Bradley 440N-Z21US2HN is a Guardmaster non-contact safety switch designed with a rectangular plastic housing and a standard code actuator. It features two normally closed (N.C.) safety outputs and one normally open (N.O.) auxiliary output, utilizing solid-state contacts for reliable performance in safety-critical applications.

This switch is suitable for a wide range of industrial machine guarding applications, including monitoring doors, gates, and enclosures. Its non-contact design ensures longevity and minimal wear. The integrated 6-inch pigtail with an 8-pin M12 connector simplifies installation and connection to safety control systems.

Stanlo Automation, a veteran-owned distributor of surplus industrial parts, offers the Allen-Bradley 440N-Z21US2HN. We are committed to providing dependable components to keep your automation systems running safely and efficiently. Partner with Stanlo Automation for your critical MRO supplies.

Technical specifications

Contact Configuration	2 N.C. Safety, 1 N.O Aux
Contact Type	Solid State Contacts
Connection Type	6 Inch Pigtail With 8-Pin Micro (M12) Connector
Housing Material	Plastic
Actuator	Rectangular
Voltage	20.4-26.4 VDC
Standards	CCC,CUL,UL

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-Z21US2HN, Allen Bradley Guardmaster, Non-Contact Switch, Safety Interlock

Replaces / compatible with

Compatible with Allen-Bradley Guardmaster 440N series accessories.

Technical note

Expert tip

The 440N-Z21US2HN, with its 8-pin M12 connector, is designed for easy integration into safety circuits requiring multiple safety devices.

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Frequently asked questions

What type of connector does the Allen-Bradley 440N-Z21US2HN safety switch use?

The Allen-Bradley 440N-Z21US2HN safety switch features a 6-inch pigtail with an 8-pin Micro (M12) connector. This provides a robust and convenient connection for industrial safety systems.