440E-D21BNYH

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Overview of Allen Bradley 440E-D21BNYH

The Allen Bradley 440E-D21BNYH, part of the Guardmaster series, is a high-performance Lifeline 3 cable pull safety switch engineered for reliable emergency stop and machine access control. This safety component is designed to meet demanding industrial automation requirements, ensuring operator protection and compliance with global safety standards. The 440E-D21BNYH operates with a robust cable span up to 30 meters, supporting both manual and automatic reset options. Its direct-opening action contacts and integrated status indicators provide clear visibility for troubleshooting and maintenance. Built for durability, it features a heavy-duty enclosure rated IP66, making it suitable for challenging environments where dust and moisture are present.

Key Features of Allen Bradley 440E-D21BNYH

  • Supports cable spans up to 30 meters for extended coverage along production lines and machinery.
  • Features 2 normally closed (N.C.) safety contacts and 2 normally open (N.O.) auxiliary contacts for flexible integration into control systems.
  • 8-pin M12 micro-style connector for secure, industry-standard electrical connections.
  • Includes a built-in cable status indicator for immediate visual feedback on the switch condition.
  • Universal mounting options simplify installation in both new and retrofit applications.
  • Meets high safety performance standards, including EN ISO 13849-1 (Cat. 4), SIL CL3 per IEC 62061 and IEC 61508, EN ISO 13850, and NFPA 79.
  • Heavy-duty die-cast alloy housing provides protection against impact and environmental factors.
  • Operating temperature range from -25°C to +80°C allows reliable performance in varied climates.
  • Yellow body with a blue reset button for easy identification and operation.
  • Suitable for use in series connections to enhance system safety and redundancy.

Technical Specs of Allen Bradley 440E-D21BNYH

Attribute Specification
Safety Contacts 2 N.C. (direct-opening), 2 N.O. (auxiliary)
Max Cable Length Up to 30 meters
Enclosure Rating IP66
Operating Temp Range -25°C to +80°C
Connection Type 8-pin M12 Micro
Body Material Die-cast alloy (heavy-duty)
Color Yellow with blue reset
Weight 630 grams

Applications / Use Case

The Allen Bradley 440E-D21BNYH is designed for emergency stop and access control applications in industrial automation, particularly on conveyor systems, packaging lines, stamping presses, and other machinery where operator safety is critical. Its long cable span allows deployment across large work cells or multiple machine sections. The direct-opening action ensures immediate and positive cut-off of hazardous motion, while auxiliary contacts support integration with programmable logic controllers (PLCs) and safety relays. The product is ideal for facilities requiring compliance with international safety regulations and seeking to minimize downtime through clear diagnostic indicators and rugged construction.

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440E-D21BNYH

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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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