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440R-N23120

440R-N23120

Manufacturer: ALLEN BRADLEY

Condition: New and Unused, Surplus.

Price: Available on Request

Overview of Allen Bradley 440R-N23120

The Allen Bradley 440R-N23120 is a single-function safety relay engineered for monitoring safety-related circuits. It features a dual-channel input system and provides two normally open (N.O.) safety outputs. Designed to operate with a 24V AC/DC power supply, this compact unit measures 22.5 mm in width and is ideal for mounting on standard 35 mm DIN rails. Its monitored manual reset function allows safe restart procedures after a safety event. The 440R-N23120 complies with global standards including CE, cULus, and c-Tick, making it suitable for various industrial environments requiring reliable safety control. With a robust construction and compact dimensions, it fits well into tight control panels and ensures operator safety in automated applications.

Key Features of Allen Bradley 440R-N23120

  • Dual channel inputs for enhanced safety monitoring
  • Two immediate safety outputs, both normally open (2 N.O.)
  • 24V AC/DC power supply compatibility
  • Fixed removable terminals and monitored manual reset
  • Compliance with CE, cULus, and other safety standards
  • Compact 22.5 mm width for space-saving panel integration
  • Suitable for various safety devices such as light curtains and emergency stops
  • Mountable on 35 mm DIN rails for flexible installation
  • Performance level e and Safety category 4 under EN ISO 13849-1
  • Supports control of safety circuits in small or single-zone applications

Technical Specs of 440R-N23120

Specification Value
Input Channels Dual Channel
Safety Outputs 2 N.O. (Normally Open), immediate
Power Supply 24V AC/DC
Reset Type Monitored Manual Reset
Width 22.5 mm
Height 75 mm
Depth 110 mm
Weight 0.16 kg
Safety Category Category 4 (EN ISO 13849-1)
Performance Level Level e (EN ISO 13849-1)
Contact Rating 6 A DC-13 / 24V DC, 3 A DC-13 / 24 V DC
Mounting 35 mm DIN Rail
Environmental Temperature -5 to 55 °C
IP Rating IP40 (Device), IP20 (Terminals)

Applications / Use Case

The Allen Bradley 440R-N23120 safety relay is suited for small or single-zone safety applications where monitoring and control of safety functions are essential. It is commonly used with safety devices such as light curtains, safety mats, laser scanners, interlock switches, two-hand control systems, and emergency stop pushbuttons. This model ensures that machinery can be stopped safely and restarted only after the system is confirmed to be safe, reducing the risk of accidents. It caters to industries requiring compliance with stringent safety standards, including manufacturing, packaging, material handling, and automation processes. Its compact size and ease of installation allow integration into existing control panels without excessive space use.

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