440F-C251D

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Overview of Allen Bradley 440F-C251D

The Allen Bradley 440F-C251D is a Safedge Guardmaster safety edge controller designed for industrial safety applications. Manufactured by Rockwell Automation, this device provides reliable monitoring and control for safety edge systems. It features a compact 45mm housing suitable for DIN rail mounting, making it easy to integrate into existing control panels. The controller supports both manual and automatic reset modes and operates on 24V AC/DC or 110/230V AC supply voltages. Its primary function is to monitor safety edge inputs and provide safe outputs to stop hazardous machinery, ensuring compliance with critical safety standards such as EN ISO 13849-1 PLd Cat.3. The 440F-C251D is robustly certified for safety and is widely used in automated systems requiring dependable protection mechanisms.

Key Features of Allen Bradley 440F-C251D

  • Dual independent volt-free safety relay outputs (2 N.O.) for safety circuit control.
  • One volt-free normally closed auxiliary output for monitoring or signaling.
  • Supports 24V AC/DC or 110/230V AC operation for versatile power sourcing.
  • Compact 45mm-wide housing optimized for DIN rail mounting in control enclosures.
  • Configurable for manual or automatic reset modes depending on application needs.
  • Complies with EN ISO 13849-1 Safety Integrity Level PLd (Category 3) and EN ISO 13856-2 standards.
  • IP40 enclosure rating with IP20 terminal protection for reliable industrial use.
  • Overvoltage category 2 rating and 2500V impulse withstand voltage for durability.
  • Low power consumption under 6 VA for efficient operation.
  • Easy integration with Guardmaster Safedge pressure-sensitive safety edge systems.

Technical Specs of 440F-C251D

Specification Details
Safety Certification EN ISO 13849-1 PLd, Cat. 3; EN ISO 13856-2
Power Supply 24V AC/DC or 110/230V AC
Relay Outputs 2 x N.O. safety contacts, 1 x N.C. auxiliary contact
Mounting 45mm DIN Rail
Enclosure Rating IP40 (Housing), IP20 (Terminals)
Response Time Approximately 13 ms
Power Consumption <6 VA

Applications / Use Case

The Allen Bradley 440F-C251D is engineered for use in safety edge systems on automated machinery such as conveyors, presses, and robotic cells. It serves as a critical component in safeguarding personnel by detecting physical contact on pressure-sensitive edges and triggering safe shutdowns. This model is ideal for packaging lines, material handling equipment, and industrial doors where fast and reliable safety response is necessary. Its flexibility in mounting and reset mode options enables tailored implementations across various industries including automotive, manufacturing, and food processing. The controller’s compliance with international safety standards makes it a trusted choice for engineers prioritizing safety assurance and regulatory compliance.

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440F-C251D

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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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