Product Overview:

The Allen-Bradley 440N-Z21SS2BN SensaGuard Non-Contact Safety Switch provides advanced machine safety functionality with RFID technology for tamper-resistant operation. Its compact plastic rectangular design supports flexible installation, while its 18mm (0.71 in.) sensing distance ensures reliable performance in demanding environments. Equipped with diagnostic LEDs for door and margin indication, the 440N-Z21SS2BN enhances operational safety and minimizes downtime by offering clear visual feedback. This switch is ideal for applications where physical contact between safety devices and actuators is undesirable or impractical.

Technical Specifications:

• Part Number: 440N-Z21SS2BN
• Series: SensaGuard™
• Switch Type: Non-Contact Safety Switch
• Technology: RFID-based tamper-resistant coding
• Housing Material: Plastic (Rectangular design)
• Sensing Distance: 18 mm (0.71 in.)
• Actuator Type: Rectangular, Standard Code
• Connection: 10m (32.8 ft) PVC cable
• LED Indication:
  • Door status
  • Diagnostic margin indication
• Power Supply Voltage: 24V DC (±10%)
• Safety Contacts:
  • 2 N.C. (normally closed)
  • 1 N.O. (normally open auxiliary)
• Response Time: ≤ 75 ms
• Operating Temperature: -10°C to 55°C (14°F to 131°F)
• Ingress Protection: IP67, suitable for harsh environments
• Standards Compliance: EN ISO 13849-1 (PLe), IEC 61508 (SIL 3), UL, and CE certified

Features and Benefits:

1. Advanced RFID Technology:

   • Provides high-level tamper resistance by requiring a matched actuator to trigger the safety switch.

2. Long Sensing Distance:

   • 18mm sensing range allows for flexible mounting and ensures reliable operation even with misaligned doors.

3. LED Diagnostics:

   • Clear indication of door status and margin diagnostics simplifies troubleshooting and maintenance.

4. Compact and Durable Design:

   • Rectangular plastic housing offers a lightweight, space-saving solution that is IP67-rated for use in challenging industrial environments.

5. Flexible Installation:

   • 10m PVC cable allows for easy wiring in various machine guarding layouts.

6. Certified Safety Compliance:

   • Meets global safety standards, including PLe (Performance Level e) and SIL 3 (Safety Integrity Level 3), ensuring reliable protection.

7. Non-Contact Operation:

   • Eliminates mechanical wear and tear, increasing the switch's lifespan and reliability.

Applications:

• Machine Guarding:

  • Ideal for safeguarding access doors, gates, and removable panels in industrial automation systems.

• Food and Beverage Industry:

  • Non-contact design ensures hygiene by minimizing contamination risks.

• Automotive Manufacturing:

  • Reliable for guarding robotic cells, conveyor systems, and assembly lines.

• Pharmaceutical Industry:

  • Ensures compliance with stringent safety standards in cleanroom environments.

• Packaging Machinery:

  • Ideal for securing access to packaging lines without interfering with production.

Why Choose the Allen-Bradley 440N-Z21SS2BN?

• Enhanced Safety: RFID technology prevents tampering, ensuring the highest level of operator protection.
• User-Friendly Diagnostics: LED indicators reduce troubleshooting time and keep processes running smoothly.
• Durable and Reliable: Designed to withstand harsh environments with IP67 protection.
• Global Compliance: Certified to meet international safety and quality standards, ensuring peace of mind.

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