Allen Bradley 440R-D22R2 Guardmaster Dual Input Safety Relay

The AB 440R-D22R2 is a Guardmaster dual-input safety relay designed for monitoring emergency stop devices and safety interlocks in industrial safety systems. It features two dual-channel universal inputs, 2 N.O. instantaneous safety relay outputs, and one N.C. solid-state auxiliary output for diagnostic or monitoring purposes.

Operating at 24V DC, this compact 22.5 mm-wide safety relay is rated to Performance Level e (PL e) per EN ISO 13849-1 and supports applications such as emergency stop circuits, magnetic switch monitoring, and light curtain safety systems. With support for a feedback circuit and start input, the unit is DIN-rail mountable and offers quick installation via plug-in connections with detachable terminals.

Technical Specifications

Model: 440RD22R2
Series: Guardmaster Safety Relay
Type: Dual Input Safety Relay
Safety Inputs: 2 x Dual Channel
Safety Outputs: 2 x N.O. instantaneous contact
Auxiliary Outputs: 1 x N.C. solid-state
Voltage Supply: 24V DC
Mounting Type: DIN Rail
Application: Emergency stop monitoring, magnetic switch circuits, optoelectronic protective devices

Electrical Specifications

Supply Voltage Range: 24…24 V DC
Voltage Type: DC
Safety Output Type: Electromechanical relay (instantaneous)
Auxiliary Output Type: Solid state (N.C.)
Start Input: Yes
Feedback Circuit: Yes
Stop Category (IEC 60204): 0
Performance Level: PL e (EN ISO 13849-1)
Rated Operating Current: Model-specific (consult datasheet)
Internal Logic Type: Basic safety function with redundancy

Mechanical Specifications

Width: 22.5 mm
Height: 105.7 mm
Depth: 113.6 mm
Mounting Type: DIN rail
Connection Type: Plug-in connection with detachable clamps
Housing Style: Slimline
Form Factor: Compact safety module
Indicators: LED status indication (on unit)

Environmental Specifications

Operating Temperature: 0…+55 °C typical
Storage Temperature: –40…+85 °C
Relative Humidity: 5%…95% non-condensing
IP Rating: IP20 (enclosure-dependent)
Shock/Vibration: IEC 60068 compliant
Certifications: CE, UL, cULus, RoHS
Application in Commercial/Residential Areas: Permitted

Compliance & Communication

Standards Compliance:
– EN ISO 13849-1 (PL e)
– IEC 60204 (Stop Category 0)
Approvals: UL, CE, cUL
Monitoring Capabilities:
– Emergency Stop
– Magnetic Switch
– Optoelectronic Protection (Light Curtains)
Unsupported Functions:
– Position/proximity/tactile sensors
– Muting

Key Features & Benefits

✅ Dual Channel Safety Monitoring – Enables Category 4 safety monitoring of E-stop and interlock circuits

✅ 2 Instantaneous Safety Contacts – Reliable relay output for machine shutdown control

✅ 1 N.C. Solid State Output – Provides status or fault indication for diagnostics

✅ DIN Rail Compact Housing – 22.5 mm width for space-saving panel integration

✅ Performance Level e – Meets the highest safety level under EN ISO 13849-1

✅ Plug-In Terminals – Easy installation, maintenance, and wiring flexibility

📦 Order the Allen Bradley 440R-D22R2 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 440R-D22R2 prices. With 22 units currently in stock, you can count on rapid dispatch and expert support for all your machine safety and risk reduction requirements.

Click here to request a quote or buy now

Drive Outlet Megastore – your trusted supplier for Allen Bradley Guardmaster safety relays and machine safety components.