Allen-Bradley 440R-D22R2

Allen-Bradley 440R-D22R2 | Guardmaster Dual Input Safety Relay

Overview

The Allen-Bradley 440R-D22R2 is a Guardmaster dual input safety relay designed to monitor safety devices such as emergency stop buttons, safety gates, and light curtains. It features two dual-channel universal inputs and provides two normally open (N.O.) safety outputs along with one normally closed (N.C.) auxiliary output. The relay supports configurable logic (AND/OR) and can be set for automatic, manual, or monitored manual reset modes.

Key Features

• Inputs: 2 dual-channel universal inputs

• Safety Outputs: 2 N.O. relay outputs

• Auxiliary Output: 1 N.C. solid-state output

• Logic Configuration: AND / OR (rotary switch configurable)

• Reset Modes: Automatic, manual, or monitored manual

• Power Supply: 24V DC

• Removable Terminals: Yes

• Mounting: DIN rail

• Enclosure Protection: IP40 (NEMA 1)

• Standards Compliance: SIL 3 (IEC 61508), PLe (EN ISO 13849-1), Category 4 (EN 954-1)

Technical Specifications

• Catalog Number: 440R-D22R2

• Supply Voltage: 24V DC (20.4–26.4V DC range)

• Power Consumption: 2.5 W

• Safety Output Ratings:

  • AC-15: 1.5 A @ 250V AC

  • DC-13: 2 A @ 24V DC

• Auxiliary Output Rating: 50 mA @ 24V DC

• Operating Temperature: -5°C to 55°C

• Dimensions (H x W x D): 119.4 mm x 22.5 mm x 113.6 mm

• Weight: 0.209 kg

• Mechanical Life: 10 million operations

• Certifications: UL, CE, cULus, TUV, CCC, KC

Applications

• Monitoring emergency stop circuits

• Safety gate monitoring

• Light curtain integration

• Two-hand control systems

• Safety mat monitoring

• Proximity and position switch monitoring

Why Choose the 440R-D22R2?

• Versatility: Compatible with a wide range of safety devices

• Compact Design: Slim 22.5 mm width saves panel space

• Ease of Configuration: Rotary switches for logic and reset mode selection

• High Safety Standards: Meets SIL 3 and PLe requirements

• Diagnostic LEDs: Clear status indication for inputs, outputs, and faults

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