Description
Allen-Bradley Safety Relay 440R-B23020 for Machine Safety
High-reliability safety relay for critical machine guarding applications with SIL 3 certification and fast response time.
| Brand | Allen-Bradley |
| Model | 440R-B23020 |
| Voltage | 24V DC |
| Country of Origin | USA |
| Weight | 0.45 kg |
| Dimensions | 90 mm x 22.5 mm x 100 mm |
| Warranty | 2 years |
| Certifications | CE, cULus, T V, SIL 3, PL e |
| SKU / MPN | 440R-B23020 |
| What’s in the box | Safety relay unit, mounting bracket, terminal blocks, user manual |
| Safety Inputs | 2 dual-channel inputs (safety mat, light curtain, e-stop) |
| Safety Outputs | 3 N.O. safety outputs, 1 N.C. auxiliary output |
| Response Time | < 20 ms |
| Operating Temperature | -10°C to +55°C |
| Protection Rating | IP20 |
| Power Consumption | 3 W |
Key benefits: Enhanced safety compliance, robust construction, easy wiring, diagnostic LED indicators, compact DIN-rail mount
Typical applications: Industrial machinery, robotic cells, conveyor systems, packaging equipment, press brakes
Order number: Allen-Bradley Safety Relay 440R-B23020 for Machine Safety
Lifecycle: Active
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Exact match for many brands
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Guaranteed for one full year
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Patricia E. –
The stepper motor is smooth and quiet. Will use this supplier again.