Allen Bradley 440F-C251D Safedge Controller – 24V AC/DC or 110/230V AC, 2 N.O. + 1 N.C. Contacts, 45mm DIN Rail Housing

The Allen Bradley 440F-C251D is a Safedge safety controller engineered for use with Allen Bradley pressure-sensitive safety edges, providing reliable protection for hazardous machine zones and moving equipment. Designed to detect edge activation and trigger rapid machine shutdown, this unit supports dual input voltage options of 24V AC/DC or 110/230V AC, making it adaptable to diverse control system architectures.

Housed in a 45mm-wide DIN rail polycarbonate enclosure with a yellow IP20-rated body, the 440F-C251D features two normally open (N.O.) safety contacts and one normally closed (N.C.) auxiliary contact. It ensures dependable safety integration within compact control panels while providing visual identification for machine guarding applications.

Technical Specifications

Model: 440F-C251D Allen Bradley
Series: 440F Safedge
Product Type: Safety Edge Controller
Input Voltage: 24V AC/DC or 110/230V AC
Number of Safety Contacts: 2 N.O.
Number of Auxiliary Contacts: 1 N.C.
Model Type: Contact Edge Controller
Colour: Yellow
Enclosure Rating: IP20
Operating Temperature Range: -5…55 °C
Housing Dimensions (W x H x L): 130 x 73 x 130 mm
Mounting Type: DIN rail or enclosure mounting

Electrical & Performance Details

• Supply Voltage Options: 24V AC/DC or 110/230V AC selectable input
• Output Configuration: 2 N.O. safety outputs + 1 N.C. auxiliary contact
• Input Type: Safety edge (contact edge input monitoring)
• IP Rating: IP20 (protected from solid objects >12mm)
• Function: Detects actuation of connected safety edge and stops machinery
• Operating Mode: Direct relay switching for safety interlock response

Mechanical Specifications

• Height: 73 mm
• Width: 130 mm
• Length: 130 mm
• Colour: Yellow
• Housing Type: Polycarbonate DIN-rail enclosure
• Mounting: Standard 45mm DIN rail or enclosure installation

Environmental & Application Suitability

• Typical Applications: Perimeter guarding, machine edges, doors, and industrial gate protection
• Use Case: Activates immediate stop function when a safety edge is pressed
• Operating Temperature Range: -5°C to +55°C
• Installation Environment: Industrial machinery panels and safety control cabinets

Compliance & Certifications

• CE Marked: Yes
• UL / cUL Listed: Yes
• RCM Certified: Yes (Australia)
• EAC Certified: Yes (Eurasian Economic Community)
• RoHS Compliant: Yes

Key Features & Benefits

✅ Dual-voltage operation supports both low-voltage and high-voltage control systems.

✅ Compact 45mm housing saves space on DIN rails or panel installations.

✅ 2 N.O. + 1 N.C. contact configuration for flexible safety and signal monitoring.

✅ Bright yellow housing ensures quick visual identification in control cabinets.

✅ IP20 protection ideal for dry, enclosed control environments.

✅ Reliable safety relay response to edge actuation for immediate hazard prevention.

📦 Order the Allen Bradley 440F-C251D from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 440F-C251D prices, with fast UK & EU delivery and expert support for Safedge safety controllers and machine protection systems.

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Ensure machine safety and reliability with Allen Bradley Safedge technology — available exclusively from Drive Outlet Megastore.