440N-Z21S17A

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Overview of Allen Bradley 440N-Z21S17A

The Allen Bradley 440N-Z21S17A is a Guardmaster non-contact safety switch designed specifically for safety functions in industrial environments. Featuring an 18 mm stainless steel barrel actuator, it provides reliable non-contact sensing that minimizes wear and enhances durability. The device operates with a standard code actuator and includes solid state contacts with two normally closed safety contacts and one normally open auxiliary contact. Its 3-meter PVC cable ensures flexible and safe connection to control systems. This model is suited for applications requiring high levels of machine guarding and personnel safety, including door or gate position monitoring. The stainless steel barrel construction enables it to be embedded in metal applications, offering robust protection and reliability in demanding industrial conditions.

Key Features of Allen Bradley 440N-Z21S17A

  • Non-contact sensing technology reduces mechanical wear and increases longevity
  • Stainless steel 18 mm barrel actuator designed for embedded metal use
  • Two normally closed (NC) safety contacts for reliable emergency stop signal
  • One normally open (NO) auxiliary contact for additional signaling options
  • Standard code actuator for secure and consistent operation
  • 3-meter PVC cable connection for flexible installation
  • Solid state contacts for enhanced switching accuracy and reliability
  • Designed to meet rigorous safety standards for industrial guarding
  • Compact dimensions ideal for integration in restrictive installations

Technical Specs of 440N-Z21S17A

Specification Details
Actuator Type 18 mm Stainless Steel Barrel, standard code
Contact Configuration 2 NC Safety, 1 NO Auxiliary
Sensing Distance 15 mm (0.59 in.)
Operating Voltage 24 V DC ± 10%
Connection 3 m PVC Cable
Mounting Embedded metal capable with stainless steel actuator
Enclosure Material Stainless Steel Barrel
Operating Temperature 0 to 55 °C (32 to 131 °F)
Protection Rating IP67, IP69K (typical for stainless steel versions)

Applications / Use Case

The Allen Bradley 440N-Z21S17A is ideal for industrial safety applications requiring effective guarding of hazardous zones such as guard doors, gates, and removable panels. Commonly used in manufacturing, material handling, and heavy machinery sectors, the switch ensures machines are only operable when guards are properly closed, enhancing operator protection. Its non-contact sensing reduces maintenance needs compared to mechanical switches, while the stainless steel actuator allows embedding in metal frames, suitable for harsh or washdown environments. This model supports compliance with safety standards and is widely implemented in automated assembly lines, packaging equipment, and robotic safety systems.

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440N-Z21S17A

$0.00

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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