PRL18-8DN Autonics Inductive Proximity Sensor
Autonics PRL18-8DN Inductive Proximity Sensor – M18, 8 mm, NPN, DC 3-Wire
Autonics PRL18-8DN is an M18 inductive proximity sensor with 8 mm sensing distance and NPN DC 3-wire output.
Designed for accurate metal detection in PLC-controlled industrial automation.
The Autonics PRL18-8DN is a cylindrical inductive proximity sensor designed to detect metal objects only in industrial automation environments. Featuring an M18 threaded housing, 8 mm sensing distance (flush type), and NPN DC 3-wire output, it delivers stable, repeatable performance in control panels, packaging machinery, and OEM equipment connected to PLC digital inputs.
Key Features
Detects metal objects only (inductive sensing principle)
Robust M18 cylindrical housing
8 mm sensing distance (flush / shielded)
NPN, DC 3-wire output
Suitable for PLC digital inputs
Red LED operation indicator
Reverse polarity & short-circuit protection
IP67 protection for industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PRL18-8DN |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M18 |
| Installation | Flush (Shielded) |
| Sensing Distance | 8 mm |
| Setting Distance | 0 – 5.6 mm |
| Standard Target | Iron 18 × 18 × 1 mm |
| Output Type | NPN |
| Wiring | DC 3-Wire |
| Supply Voltage | 12–24 V DC (10–30 V DC operating) |
| Current Consumption | ≤ 10 mA |
| Control Output | Max. 200 mA |
| Response Frequency | Approx. 300 Hz |
| Indicator | Red LED |
| Protection Rating | IP67 |
| Ambient Temperature | −25 °C to +70 °C |
| Cable Length | 2 m |
| Body Material | Nickel-plated brass |
| Sensing Face | PBT |
Applications
PLC-based automation systems
Control & junction panels
Packaging & assembly machines
Material handling systems
OEM industrial equipment
Position, limit & presence detection
What’s in the Box
1 × Autonics PRL18-8DN Sensor
2 × Mounting nuts
Instruction leaflet
FAQ
Q1. What material can PRL18-8DN detect?
Only metal objects.
Q2. Is PRL18-8DN suitable for PLC inputs?
Yes. It provides an NPN DC 3-wire output, widely used with PLC digital inputs.
Q3. What is the sensing distance?
8 mm with a standard iron target.
Q4. What does flush mounting mean?
Flush mounting allows installation level with surrounding metal without false triggering.
Q5. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.