| PartNumber | E3RB-TN21 | E3RB-TP11 2M | E3RB-TP21 |
| Description | Photoelectric Sensors Brass M18TB 15m Rad NPNCon | Photoelectric Sensors Brass M18TB 15m Rad PNP pW | Photoelectric Sensors Brass M18TB 15m Rad PNPCon |
| Manufacturer | Omron | Omron | Omron |
| Product Category | Photoelectric Sensors | Photoelectric Sensors | Photoelectric Sensors |
| RoHS | N | N | N |
| Sensing Method | Through-Beam | Through-Beam | Through-Beam |
| Sensing Distance | 15 mm | 15 mm | 15 mm |
| Light Source | Red LED | Red LED | Red LED |
| Connection Method | M12 Connector | Cable | M12 Connector |
| Output Configuration | NPN | PNP | PNP |
| 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 | 56.9 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 | E3RBTN21 | E3RBTP112M | E3RBTP21 |
| Unit Weight | 3 oz | 6.172943 oz | 3 oz |
| Packaging | - | Bulk | - |