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Allen Bradley

Allen Bradley 440N-Z21U16B Guardmaster Non-Contact Safety Switch

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ManufacturerAllen Bradley

Part number440N-Z21U16B

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

Connection Type 10 M PVC Cable

Housing Material Plastic

Contact Type Solid State Contacts

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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 10-meter PVC cable Plastic housing Non-contact operation Solid state contacts

Product description

The Allen-Bradley 440N-Z21U16B is a Guardmaster non-contact safety switch featuring a plastic housing and a 10-meter PVC cable for connection. This switch is equipped with two normally closed (N.C.) safety outputs and one normally open (N.O.) auxiliary output, providing essential safety interlocking functions.

This safety switch is designed for various industrial automation applications where monitoring of machine guards and access points is crucial. Its non-contact operation ensures durability and reliability. The integrated 10m cable simplifies installation in many scenarios, reducing the need for separate connectors or additional wiring.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen-Bradley 440N-Z21U16B. We provide high-quality industrial components to keep your operations running smoothly. Trust Stanlo Automation for your surplus MRO needs and ensure your safety systems are dependable.

Technical specifications

Contact Configuration	2 N.C. Safety, 1 N.O Aux
Connection Type	10 M PVC Cable
Housing Material	Plastic
Contact Type	Solid State Contacts
Standards	CCC,CE,CUL,RCM,UL

Common applications

Machine guarding

Access control

Industrial automation

Safety interlocks

Conveyor systems

Packaging equipment

Compatible systems

Safety relays Safety controllers Machine control panels

Also known as

440N-Z21U16B, Allen Bradley Guardmaster, Non-Contact Switch, Safety Interlock

Replaces / compatible with

Compatible with Allen-Bradley Guardmaster 440N series accessories.

Technical note

Expert tip

The 10-meter PVC cable on the 440N-Z21U16B allows for flexible mounting options and can reduce the need for additional accessories.

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Frequently asked questions

What is the cable length for the Allen-Bradley 440N-Z21U16B safety switch?

The Allen-Bradley 440N-Z21U16B safety switch comes with an integrated 10-meter PVC cable. This extended length can simplify installation by providing greater flexibility in placement and reducing the need for extension cables.