Technical Overview
The Omron E3FA-VN21 is an E3FA M18 limited-distance reflective photoelectric sensor with a nominal sensing distance of 10 to 50 mm. It uses Red LED, 624 nm, an M12 connector and NPN open-collector output. The plastic ABS housing, 10–30 VDC supply, 0.5 ms response and IP67/IP69K protection support industrial object detection. Confirm target characteristics and controller compatibility for the installation.
M18 Omron E3FA limited-distance reflective sensor with 10 to 50 mm range, NPN output and M12 connection.
Key Features
- Limited-distance reflective sensing
- 10 to 50 mm sensing distance
- Red LED, 624 nm
- NPN open-collector output
- M12 connector
- 10 to 30 VDC supply
- 0.5 ms response
- IP67/IP69K protection
Limited-distance reflective | 10 to 50 mm | NPN | M12 connector
Technical Specification Matrix
| Parameter | Value |
| Manufacturer | Omron |
| Series | E3FA |
| Product type | M18 photoelectric sensor |
| Sensing method | Limited-distance reflective |
| Sensing distance | 10 to 50 mm |
| Output | NPN open collector |
| Connection | M12 connector |
| Housing material | ABS plastic |
| Light source | Red LED, 624 nm |
| Operation mode | Light-ON / Dark-ON, selectable by wiring |
| Response time | 0.5 ms |
| Rated supply voltage | 10 to 30 VDC |
| Maximum load current | 100 mA |
| Degree of protection | IP67/IP69K |
| Sensor-only weight | Approx. 10 g |
| Physical Weight (kg) | Not stated in the checked manufacturer product data. |
| Dimensions L x W x H (cm) | See manufacturer dimensional data; no complete overall L × W × H value stated. |
| Supply status | Unknown; exact specifications are confirmed, current supply status was not established. |
Suggested applications
Engineering suggestions require suitability checks for your installation.
1. Conveyor presence detection
Detect the presence of products as they pass a machine or conveyor sensing point.
Potential use
Position the limited-distance reflective sensor within its rated 10 to 50 mm range and wire its NPN output to a compatible controller input.
conveyor
presence detection
2. Part counting and sequencing
Provide a photoelectric switching signal for counting or sequence confirmation in an automated station.
Potential use
Use the red led, 624 nm model and its M12 connector, then configure Light-ON or Dark-ON logic by wiring.
part counting
machine automation