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Allen-Bradley 440N-S32021

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Allen-Bradley 440N-S32021

by Allen-Bradley

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OverviewElevate industrial safety standards with the Allen-Bradley 440N-S32021 Sipha Control Unit. This high-performance safety relay is expertly engineered for crucial safety monitoring tasks, delivering consistent reliability and precision. Designed for seamless integration into a wide array of industrial automation systems, the 440N-S32021 offers robust safety interlocking for machinery, actively working to avert accidents and maintain operational continuity. Its adaptable power supply, supporting both 24V AC/DC and 110V/230V AC, makes it an exceptionally versatile choice for diverse control panel configurations, from intricate production lines to general industrial machinery. The unit's compact 45mm housing design optimizes space within electrical enclosures, a critical advantage in contemporary industrial environments where every millimeter counts. Beyond its physical attributes, the 440N-S32021 exemplifies Allen-Bradley's dedication to quality and safety benchmarks, fostering confidence through dependable performance. It serves as an essential component for any facility prioritizing a secure and efficient operational workflow, acting as a cornerstone for adherence to strict safety regulations.Key Features Dual N.O. Safety Contacts: Provides highly effective and redundant safety circuit operation for enhanced protection. Single N.C. Auxiliary Contact: Offers valuable status monitoring capabilities, allowing for seamless integration into control logic. Flexible Multi-Voltage Compatibility: Supports 24V AC/DC and 110V/230V AC supply voltages, ensuring broad application compatibility and ease of installation. Space-Saving 45mm Housing: Compact design conserves precious control panel space, facilitating more efficient panel layouts. Robust Industrial Design: Engineered for durability and reliable performance in demanding industrial environments. Dependable Safety Monitoring: Specifically designed for critical machine safety and interlocking applications. Easy Integration: Simplified wiring and clear terminal markings for quick and efficient setup. Technical Specifications Model: 440N-S32021 Brand: Allen-Bradley Product Type: Sipha Control Unit (Safety Relay) Safety Contacts: 2 Normally Open (N.O.) Auxiliary Contacts: 1 Normally Closed (N.C.) Operating Voltage: 24V AC/DC or 110V/230V AC Housing Width: 45mm ApplicationsThe Allen-Bradley 440N-S32021 Sipha Control Unit is ideal for a variety of industrial settings, including: Critical machine safety and interlocking systems in manufacturing plants. Enhancing safety protocols in conveyor and automated material handling systems. Emergency stop circuit monitoring across various industrial machinery. Integration into industrial control panels requiring dependable safety functions. Protection of personnel and equipment in hazardous production areas. Automation systems demanding reliable safety interlocks. Why Choose This Model? Uncompromised Safety: Benefit from Allen-Bradley's renowned expertise in safety solutions, ensuring reliable protection. Versatile Power Options: Its flexible voltage compatibility reduces inventory needs and simplifies system design across different regions or machinery. Optimized Space Utilization: The compact form factor allows for higher density installations in control cabinets, crucial for modern industrial setups. Proven Durability: Constructed to withstand harsh industrial conditions, guaranteeing a long operational life and minimizing downtime. Streamlined Integration: Designed for straightforward installation and compatibility with existing Allen-Bradley Guardmaster safety components. Regulatory Compliance: Aids in meeting stringent international safety standards, providing peace of mind for audit and operational compliance. Order NowElevate your industrial safety standards today with the Allen-Bradley 440N-S32021 Sipha Control Unit. Experience the blend of robust engineering, flexible integration, and unwavering reliability that only Allen-Bradley can deliver. Ensure the safety of your personnel and optimize your operations with this essential component. Add to cart now!FAQQ: What are the primary power supply options for the 440N-S32021?A: The 440N-S32021 is designed for versatile power arrangements, accepting either 24V AC/DC or 110V/230V AC, making it suitable for a broad range of industrial setups.Q: How does the compact housing benefit industrial applications?A: The unit's 45mm housing width is designed to save valuable space within control panels, enabling more efficient layouts and higher density installations, especially critical in facilities where space is at a premium.Q: Can this safety control unit be easily integrated into existing systems?A: Yes, the 440N-S32021 features simplified wiring and clear terminal markings, ensuring quick and efficient setup and seamless integration with your current industrial automation systems, including other Allen-Bradley Guardmaster safety components.

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PRODUCT DETAILS

Allen-Bradley 440N-S32021

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

  • Model: 440N-S32021
  • Brand: Allen-Bradley
  • Product Type: Sipha Control Unit (Safety Relay)
  • Safety Contacts: 2 Normally Open (N.O.)
  • Auxiliary Contacts: 1 Normally Closed (N.C.)
  • Operating Voltage: 24V AC/DC or 110V/230V AC
  • Housing Width: 45mm

Applications

The Allen-Bradley 440N-S32021 Sipha Control Unit is ideal for a variety of industrial settings, including:

  • Critical machine safety and interlocking systems in manufacturing plants.
  • Enhancing safety protocols in conveyor and automated material handling systems.
  • Emergency stop circuit monitoring across various industrial machinery.
  • Integration into industrial control panels requiring dependable safety functions.
  • Protection of personnel and equipment in hazardous production areas.
  • Automation systems demanding reliable safety interlocks.

Why Choose the 440N-S32021?

  • Uncompromised Safety: Benefit from Allen-Bradley's renowned expertise in safety solutions, ensuring reliable protection.
  • Versatile Power Options: Its flexible voltage compatibility reduces inventory needs and simplifies system design across different regions or machinery.
  • Optimized Space Utilization: The compact form factor allows for higher density installations in control cabinets, crucial for modern industrial setups.
  • Proven Durability: Constructed to withstand harsh industrial conditions, guaranteeing a long operational life and minimizing downtime.
  • Streamlined Integration: Designed for straightforward installation and compatibility with existing Allen-Bradley Guardmaster safety components.
  • Regulatory Compliance: Aids in meeting stringent international safety standards, providing peace of mind for audit and operational compliance.

Availability & Shipping

  • In stock: 440N-S32021 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-S32021 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

A: The 440N-S32021 is designed for versatile power arrangements, accepting either 24V AC/DC or 110V/230V AC, making it suitable for a broad range of industrial setups.

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.

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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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PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

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