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Allen Bradley 440N-Z21S16H GuardMaster Safety Switch

Allen Bradley 440N-Z21S16H GuardMaster safety switch.

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ManufacturerAllen Bradley

Part number440N-Z21S16H

Part Number 440N-Z21S16H

Manufacturer Allen Bradley

Series GuardMaster

Contact Type Z-S16H

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Reliable safety interlock Z-S16H contact 18mm sensor head GuardMaster series Industrial grade construction

Product description

The Allen Bradley 440N-Z21S16H is a GuardMaster safety switch equipped with a Z-S16H contact and an 18mm sensor head. This switch is engineered for reliable interlocking of machine guards and doors, ensuring that machinery cannot be operated when access points are open, thereby enhancing operator safety.

This robust safety switch is widely deployed in manufacturing environments, including automotive production, material handling, and packaging operations. It is essential for applications where safeguarding personnel from hazardous machine movement is paramount, such as on robotic cells, automated assembly lines, and industrial machinery.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the 440N-Z21S16H. We are dedicated to providing quality, dependable industrial components to help our customers maintain their operations and reduce equipment downtime.

Technical specifications

Part Number	440N-Z21S16H
Manufacturer	Allen Bradley
Series	GuardMaster
Contact Type	Z-S16H
Sensor Head Diameter	18mm

Common applications

Machine Guarding

Safety Gates

Industrial Manufacturing

Automotive Production

Material Handling

Packaging

Compatible systems

Allen Bradley GuardMaster Actuators Safety Control Systems

Also known as

Allen Bradley 440N-Z21S16H GuardMaster 440N-Z21S16H Safety Interlock Switch 440N-Z21S16H

Replaces / compatible with

This part is part of the Allen Bradley GuardMaster series. For specific replacement information, please consult the manufacturer's documentation.

Technical note

Expert tip

The Z-S16H contact provides a high level of security for machine guarding interlocks, ensuring that the safety circuit remains open until the guard is fully closed and locked.

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Frequently asked questions

What is the difference between the Z-S16B and Z-S16H contacts in Allen Bradley GuardMaster switches?

While both the Z-S16B and Z-S16H are 18mm sensor heads used in Allen Bradley GuardMaster switches, the 'H' suffix typically indicates a specific configuration or feature, potentially related to manual reset or a different contact arrangement, designed for particular safety system requirements.