Autonics PR12-2DN Inductive Proximity Sensor – M12, 2 mm, NPN, DC 3-Wire
Autonics PR12-2DN is an M12 inductive proximity sensor with a 2 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 PR12-2DN is a robust inductive proximity sensor designed to detect metallic objects only. Featuring an M12 threaded housing, 2 mm sensing distance (flush type), and NPN DC 3-wire output, it is ideal for PLC inputs, control panels, and general industrial automation applications.
Detects metal objects only (inductive principle)
Standard M12 cylindrical housing
2 mm sensing distance (flush / shielded)
NPN, DC 3-wire output
Red LED operation indicator
Reverse polarity & short-circuit protection
High stability and repeatability
IP67 protection for industrial environments
| Parameter | Value |
|---|---|
| Model | PR12-2DN |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M12 |
| Installation | Flush (Shielded) |
| Sensing Distance | 2 mm |
| Setting Distance | 0 – 1.4 mm |
| Standard Target | Iron 12 × 12 × 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. 1.5 kHz |
| 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
Control & junction panels
Conveyor and material handling systems
Packaging & assembly machines
CNC & special-purpose machines
Position, limit & counting detection
1 × Autonics PR12-2DN Sensor
2 × Mounting nuts
1 × Washer
Instruction leaflet
Q1. What materials can PR12-2DN detect?
Only metal objects (inductive sensing).
Q2. What does “DN” mean in this model?
D = DC type, N = NPN output.
Q3. Is this suitable for PLC inputs?
Yes. NPN DC 3-wire sensors are commonly used with PLC digital inputs.
Q4. Can it be used in dusty or oily areas?
Yes. The sensor has IP67 protection.
Q5. What is the sensing distance?
2 mm for standard iron target.
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