The Omron E3RB-TN21 is a thru-beam photoelectric sensor with a maximum sensing distance of 15 meters. It features a red LED light source and an NPN open collector output type. The sensor is rated for operation at temperatures between -25°C and 55°C and can withstand up to 50g of shock. It operates from a maximum supply voltage of 30VDC and has a 4-pin package.
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Omron E3RB-TN21 technical specifications.
| Type | Thru-beam |
| Light Source | Red LED |
| Maximum Sensing Distance | 15m |
| Output Type | NPN Open Collector |
| Shock Rating | 50G |
| Switching Mode | Light ON/Dark ON |
| Max Operating Supply Voltage | 30VDC |
| Min Operating Temperature | -25°C |
| Max Operating Temperature | 55°C |
| Pin Count | 4 |
| RoHS | Yes |
| RoHS Version | 2011/65/EU, 2015/863 |
