Autonics PR18-5DN Inductive Proximity Sensor – M18, 5 mm, NPN, DC 3-Wire
Autonics PR18-5DN is an M18 inductive proximity sensor with 5 mm sensing distance and NPN DC 3-wire output.
Designed for reliable metal object detection in PLC-based industrial automation and control panels.
The Autonics PR18-5DN is a rugged inductive proximity sensor designed to detect metal objects only. Featuring an M18 threaded housing, 5 mm sensing distance (flush/shielded), and NPN DC 3-wire output, it is ideal for PLC inputs, automation panels, and industrial machinery requiring stable and repeatable sensing.
Detects metal objects only (inductive sensing)
Robust M18 cylindrical housing
5 mm sensing distance (flush / shielded)
NPN, DC 3-wire output
Red LED operation indicator
Reverse polarity & short-circuit protection
High repeatability and fast response
IP67 protection for harsh industrial environments
| Parameter | Value |
|---|---|
| Model | PR18-5DN |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M18 |
| Installation | Flush (Shielded) |
| Sensing Distance | 5 mm |
| Setting Distance | 0 – 3.5 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. 500 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 |
PLC-based automation systems
Conveyor & material handling
Packaging & assembly machines
CNC & special-purpose machines
Control & junction panels
Position, limit & counting detection
1 × Autonics PR18-5DN Sensor
2 × Mounting nuts
1 × Washer
Instruction leaflet
Q1. What material can PR18-5DN detect?
Only metal objects (inductive sensing).
Q2. What does DN mean in this model?
D = DC type, N = NPN output.
Q3. Is this sensor suitable for PLC input?
Yes. NPN DC 3-wire sensors are widely used with PLC digital inputs.
Q4. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.
Q5. What is the sensing distance?
5 mm for a standard iron target.
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