
PRL18-8DP Autonics Proximity Sensor
Autonics PRL18-8DP Inductive Proximity Sensor – M18, 8 mm, PNP, DC 3-Wire
Autonics PRL18-8DP is an M18 inductive proximity sensor with 8 mm sensing distance and PNP DC 3-wire output.
Designed for accurate metal detection in PLC-controlled industrial automation.
The Autonics PRL18-8DP 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 PNP DC 3-wire output, it provides reliable, repeatable performance in control panels, packaging machines, conveyors, and OEM equipment using PLC digital inputs.
Key Features
Detects metal objects only (inductive sensing principle)
Robust M18 cylindrical housing
8 mm sensing distance (flush / shielded)
PNP, DC 3-wire output
Ideal for sourcing-type PLC inputs
Red LED operation indicator
Reverse polarity & short-circuit protection
IP67 protection for industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PRL18-8DP |
| 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 | PNP |
| 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
Conveyors & material handling
OEM industrial equipment
Position, limit & presence detection
What’s in the Box
1 × Autonics PRL18-8DP Sensor
2 × Mounting nuts
Instruction leaflet
FAQ
Q1. What material can PRL18-8DP detect?
Only metal objects.
Q2. Is PRL18-8DP suitable for PLC inputs?
Yes. It has a PNP DC 3-wire output, compatible with sourcing-type PLC 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.



