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Allen-Bradley 440N-Z2NRS1A non-contact interlock safety switch

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Allen-Bradley 440N-Z2NRS1A

by Allen-Bradley

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OverviewThe Allen-Bradley 440N-Z2NRS1A Non-Contact Interlock Switch offers robust and dependable safety for industrial equipment. As a key component of the Guardmaster Sensaguard product line, this advanced interlock switch incorporates cutting-edge magnetically coded technology. This design ensures tamper-resistant functionality, preventing unauthorized entry or circumventing safety protocols. Developed with worker protection as a priority, the 440N-Z2NRS1A includes two Normally Closed (N.C.) REEDS safety outputs, enabling immediate and reliable machinery shutdown when safety conditions are compromised. Its extended 3-meter cable provides considerable installation flexibility, making it suitable for various industrial applications where precision, durability, and absolute safety are essential. This interlock switch is carefully engineered to meet stringent safety standards, serving as a foundational element for comprehensive safety systems in manufacturing, automation, and general industrial settings. It represents a commitment to safeguarding personnel and optimizing operational integrity.Key Features Magnetic Coding: Provides superior tamper protection, preventing unauthorized bypasses and ensuring consistent safety monitoring. Guardmaster Sensaguard Integration: Utilizes Allen-Bradley's high-quality safety technology for robust performance and adherence to crucial industrial safety requirements. Dual N.C. REEDS Outputs: Features two Normally Closed REEDS, delivering redundant and highly reliable safety signals for immediate machine control. Flexible 3-Meter Cable: An integrated 3-meter cable allows for adaptable and convenient installation across diverse industrial setups and distances. Durable Construction: Built to withstand challenging industrial environments, ensuring long-term reliability and consistent operation. Non-Contact Design: Reduces wear and tear, extends product lifespan, and minimizes maintenance needs compared to mechanical interlock solutions. Technical Specifications Type: Non-Contact Interlock Switch Model: Allen-Bradley 440N-Z2NRS1A Technology: Magnetically Coded (Guardmaster Sensaguard) Safety Outputs: 2 N.C. REEDS (Normally Closed) Cable Length: 3 meters Application: Machine and Equipment Guarding Safety Rating: Compliant with relevant industrial safety standards Mounting: Suitable for doors, gates, and access panels Design: Lightweight and compact Applications Machinery Protection: Crucial for operator safety by ensuring machinery is safely deactivated before access to hazardous zones. Industrial Automation: Essential for automated production lines and robotics, providing critical safety interlocks for access points. Access Panel & Gate Monitoring: Perfect for securing entry to control panels, hazardous chambers, and safety gates in manufacturing facilities. Emergency Stop Integration: Can be seamlessly incorporated into broader safety circuits, improving the overall effectiveness of emergency stop functions. Packaging and Assembly: Ensures safe operation and maintenance procedures within high-speed packaging and assembly environments. Material Handling: Used to protect personnel around conveyors, lifts, and other material handling machinery. Why Choose This Model? Absolute Safety: The magnetically coded Guardmaster Sensaguard technology virtually eliminates tampering, offering superior safety assurance. Proven Dependability: Allen-Bradley's reputation for quality guarantees lasting performance and critical safety functions you can trust in demanding conditions. Simple Installation: The non-contact design, combined with a generous 3-meter cable, simplifies setup and provides greater flexibility in placement. Reduced Upkeep: With no physical contact of moving parts, wear and tear are minimized, leading to lower maintenance expenses and increased operational time. Compliance and Assurance: Designed to meet industry safety standards, providing peace of mind. Order NowUpgrade your industrial safety protocols today. The Allen-Bradley 440N-Z2NRS1A Interlock Switch is in stock and ready to ship.FAQWhat is the primary function of the Allen-Bradley 440N-Z2NRS1A?It acts as a non-contact safety interlock switch, designed to monitor the position of guards or doors on machinery and ensure safe operation by preventing access to hazardous areas when active.How does the magnetically coded technology enhance safety?This technology provides superior tamper resistance, making it extremely difficult to bypass the safety system, thus enhancing overall security and reliability.What does "2 N.C. REEDS safety outputs" mean?It indicates that the device has two Normally Closed (N.C.) Reed switch outputs that provide a redundant and highly reliable signal for machinery shutdown when the safety conditions are not met.Is the cable length customizable?The 440N-Z2NRS1A model comes with a fixed 3-meter cable, which offers considerable flexibility for most standard industrial installations.In what types of environments can this switch be used?It is designed for use in various industrial environments, including manufacturing, automation, packaging, and material handling, where robust and reliable safety solutions are required.

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PRODUCT DETAILS

Allen-Bradley 440N-Z2NRS1A

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Type: Non-Contact Interlock Switch
  • Model: Allen-Bradley 440N-Z2NRS1A
  • Technology: Magnetically Coded (Guardmaster Sensaguard)
  • Safety Outputs: 2 N.C. REEDS (Normally Closed)
  • Cable Length: 3 meters
  • Application: Machine and Equipment Guarding
  • Safety Rating: Compliant with relevant industrial safety standards
  • Mounting: Suitable for doors, gates, and access panels
  • Design: Lightweight and compact

Applications

  • Machinery Protection: Crucial for operator safety by ensuring machinery is safely deactivated before access to hazardous zones.
  • Industrial Automation: Essential for automated production lines and robotics, providing critical safety interlocks for access points.
  • Access Panel & Gate Monitoring: Perfect for securing entry to control panels, hazardous chambers, and safety gates in manufacturing facilities.
  • Emergency Stop Integration: Can be seamlessly incorporated into broader safety circuits, improving the overall effectiveness of emergency stop functions.
  • Packaging and Assembly: Ensures safe operation and maintenance procedures within high-speed packaging and assembly environments.
  • Material Handling: Used to protect personnel around conveyors, lifts, and other material handling machinery.

Why Choose the 440N-Z2NRS1A?

  • Absolute Safety: The magnetically coded Guardmaster Sensaguard technology virtually eliminates tampering, offering superior safety assurance.
  • Proven Dependability: Allen-Bradley's reputation for quality guarantees lasting performance and critical safety functions you can trust in demanding conditions.
  • Simple Installation: The non-contact design, combined with a generous 3-meter cable, simplifies setup and provides greater flexibility in placement.
  • Reduced Upkeep: With no physical contact of moving parts, wear and tear are minimized, leading to lower maintenance expenses and increased operational time.
  • Compliance and Assurance: Designed to meet industry safety standards, providing peace of mind.

Availability & Shipping

  • In stock: 440N-Z2NRS1A ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 440N-Z2NRS1A ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

It acts as a non-contact safety interlock switch, designed to monitor the position of guards or doors on machinery and ensure safe operation by preventing access to hazardous areas when active.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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