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| PartNumber | E3RB-DN22 | E3RB-DN21 | E3RB-DN23 |
| Description | Photoelectric Sensors BrassM180.3m DiffRadNPNCon | Photoelectric Sensors BrassM180.1m DiffRadNPNCon | Photoelectric Sensors BrassM180.7m DiffRadNPNCon |
| Manufacturer | Omron | Omron | Omron |
| Product Category | Photoelectric Sensors | Photoelectric Sensors | Photoelectric Sensors |
| RoHS | N | N | N |
| Sensing Method | Diffuse Reflective | Diffuse Reflective | Diffuse Reflective |
| Sensing Distance | 300 mm | 100 mm | 700 mm |
| Light Source | Red LED | Red LED | Red LED |
| Connection Method | M12 Connector | M12 Connector | M12 Connector |
| Output Configuration | NPN | NPN | NPN |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 55 C | + 55 C | + 55 C |
| Features | Cylindrical, Radial type, Metal housing | Cylindrical, Radial type, Metal housing | Cylindrical, Radial type, Metal housing |
| Length | 60.9 mm | 60.9 mm | 60.9 mm |
| Series | E3FA/E3RA/E3FB/E3RB | E3FA/E3RA/E3FB/E3RB | E3FA/E3RA/E3FB/E3RB |
| Width | 18.5 mm | 18.5 mm | 18.5 mm |
| Brand | Omron Automation and Safety | Omron Automation and Safety | Omron Automation and Safety |
| Operating Supply Voltage | 30 V | 30 V | 30 V |
| Product Type | Photoelectric Sensors | Photoelectric Sensors | Photoelectric Sensors |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Sensors | Sensors | Sensors |
| Part # Aliases | E3RBDN22 | E3RBDN21 | E3RBDN23 |
| Unit Weight | 0.705479 oz | 0.705479 oz | 0.705479 oz |