Allen-Bradley 440R-EM4R2 high-reliability Guardmaster safety relay expansion module
Product Details:
Manufacturer : ALLEN BRADLEY
Product No. : 440R-EM4R2
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The AB (Allen-Bradley) 440R-EM4R2 is a high-reliability Guardmaster safety relay expansion module designed to enhance safety control capabilities in industrial automation systems. As part of Rockwell Automation’s trusted 440R product family, this active-life-cycle module extends the input/output capacity of base safety relays, enabling seamless integration of multiple safety devices like emergency stop buttons, safety interlocks, and light curtains. With a compact DIN rail-mountable design, 4 normally open safety outputs, and compliance with global safety standards (SIL 3, PLe), it delivers robust protection for personnel and equipment in high-risk industrial environments. Its intuitive wiring, built-in self-diagnostics, and modular flexibility make it ideal for scaling safety systems across manufacturing, logistics, and energy sectors.
Detail:
| Brand & Model |
AB (Allen-Bradley) 440R-EM4R2 (Guardmaster Safety Relay Expansion Module) |
| Life Cycle Status |
Active |
| Core Function |
Safety circuit expansion, safety output control, fault diagnostics |
| Power Supply |
Rated Control Supply Voltage: 24V DC
Operating Voltage Range: 20.4V DC
Power Consumption: 3.5 W |
| Inputs |
Type: Single-wire safety input / OSSD
Actuation Voltage: DC
Input Current: 50 mA (terminal X1/X2)
Compatible Devices: Emergency stops, safety interlocks, light curtains |
| Outputs |
Safety Outputs (Undelayed, Contact): 4x Normally Open (NO)
Auxiliary Output (Undelayed, Solid-State): 1x Normally Closed (NC)
Safety Output Rating: 2A @ 24V DC (0.1 Hz), DC-13 (UL: B300)
Max Aggregate Output Current: 6 A
Max Surge Output Current: 700 mA (5ms duration)
Max Continuous Output Current: 50 mA |
| Mechanical Data |
Dimensions (HxWxD): 119.14 mm x 22.5 mm x 113.6 mm
Mounting Type: DIN rail-mountable
Weight: Not specified (compact industrial design)
Enclosure Protection: IP40 (NEMA 1) |
| Electrical Connections |
Connection Type: Screw terminals
Wire Size Range: 0.2 to 2.5 mm²
Terminal Design: Grouped layout with error-proofing |
| Environmental Ratings |
Operating Temperature: -5 °C to 55 °C (typical industrial range)
Relative Humidity: Up to 90% (non-condensing)
Vibration Resistance: 10–55 Hz, 0.35 mm
Shock Resistance: 10g, 16ms |
| Safety & Reliability |
Performance Level (EN ISO 13849-1): PLe
SIL (IEC 61508): 3
Safety Category (IEC 60204): Up to 4
Safe Failure Fraction (SFF): 99%
Probability of Dangerous Failure per Hour (PFHD): 1.81e-09
Mean Time To Dangerous Failure (MTTFd): 190 years
Hardware Fault Tolerance (HFT): 1 |
| Certifications |
UL Approved, TÜV Certified, RoHS Compliant |
Brand
AB focuses on innovation and utilizes the latest technologies like cloud computing, machine learning, and artificial intelligence to develop advanced solutions. This helps customers improve productivity, efficiency, and overall business performance. The company attaches great importance to product quality and customer service. Its rigorous product testing and certification processes ensure the high quality and reliability of products.
Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, Endress+Hauser, MTL, Allen-Bradley, Pepperl+Fuchs, YOKOGAWA,Rosemount, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, Honeywell, Siemens and etc. If you have any request, please do not hesitate to contact us.
Endress+Hauser Instruments -ALLEN BRADLEY PLC -YOKOGAWA Instruments -MTL Instruments -P+F Instruments
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FAQ of Achievers
Q:Are the Products Genuine OEM Units?
A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.
Q:How will you arrange shipment?
A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.
Q:What is the warranty of goods?
A: One-year Warranty.
Q:Which are the best-selling products?
A: Many brands of products have been supplied . For example, MTL safety barrier MTL5541, Endress Hauser RS33 , P+F safety barrier KFD2-SR2-Ex2.W,Emerson Hand Communicator TREXCHPNAWS1S
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