440R-GL2S2T

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Overview of Allen Bradley 440R-GL2S2T

The Allen Bradley 440R-GL2S2T is a Guardmaster Guard Locking Time-Delay (GLT) Safety Relay designed to enhance machine safety by controlling and monitoring safety circuits with precision. It operates on a 24V DC supply and integrates dual-channel inputs with delayed outputs, making it suitable for complex safety applications. This relay complies with stringent international standards such as ISO 13849-1 Performance Level e (PL e) and IEC 61508 SIL 3, assuring high reliability in critical safety systems. Its compact dimensions allow it to be easily mounted on a DIN rail, and its removable screw terminals simplify wiring and maintenance. The 440R-GL2S2T is built for demanding industrial environments and supports configurable reset options including automatic, manual, and monitored manual modes, allowing flexible integration into various safety control architectures.

Key Features of Allen Bradley 440R-GL2S2T

  • 24V DC supply voltage with dual-channel safety inputs for reliable monitoring
  • Time-delay outputs providing controlled guard locking function
  • One auxiliary contact (N.O.) rated for non-safety applications
  • Configurable reset modes: automatic, manual, and monitored manual reset
  • High safety performance: ISO 13849-1 Category 4, PL e and IEC 61508 SIL 3 certified
  • Compact size: 22.5 mm width, 119 mm height, and 114 mm depth
  • Removable screw terminals for easy wiring and quick replacement
  • LED indicators for operational status and diagnostics
  • Robust polyamide housing suitable for industrial environments with IP20 protection
  • Designed for use in guard locking applications, emergency-stop monitoring, and safety sensor integration

Technical Specs of 440R-GL2S2T

Specification Details
Supply Voltage 24 V DC
Safety Inputs 1 Dual channel input (time delayed outputs GLT)
Auxiliary Contact 1 N.O., PNP, 50 mA (non-safety)
Safety Outputs 2 OSSDs (Output Signal Switching Devices), 300 mA
Reset Options Automatic, Manual, Monitored Manual Reset
Safety Category/Performance Level ISO 13849-1 Category 4, PL e
SIL Rating IEC 61508 SIL 3
Terminal Type Screw, removable
Dimensions (W x H x D) 22.5 mm x 119.14 mm x 113.6 mm
Mounting DIN Rail
Operating Temperature -40 °C to +80 °C
Protection Rating IP20

Applications / Use Case

The Allen Bradley 440R-GL2S2T safety relay is ideal for industrial environments requiring a reliable safety monitoring device for guard locking and emergency stop circuits. It ensures machines only operate when safety guards are properly secured and locked, preventing accidental start-up during maintenance or while the guard is open. Typical applications include automated production lines, robotic cells, packaging machinery, and press safety circuits. This relay’s time-delay function allows safe release sequences and provides flexibility in safety control system design. It is commonly used alongside safety sensors such as proximity switches, magnetic switches, and emergency stop buttons, fitting seamlessly into safety control architectures governed by strict industry standards.

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440R-GL2S2T

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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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