Autonics PRD12-4DN Inductive Proximity Sensor – M12, 4 mm, NPN, DC 3-Wire
Autonics PRD12-4DN is a compact M12 inductive proximity sensor with a 4 mm sensing distance and NPN DC 3-wire output.
Suitable for precise metal detection in PLC-based industrial automation and control panels.
The Autonics PRD12-4DN is a compact inductive proximity sensor designed to detect metal objects only in industrial automation systems. Featuring an M12 threaded housing, 4 mm sensing distance, and NPN DC 3-wire output, it is well suited for applications with limited mounting space such as control panels, small machinery, and automated assembly systems.
Detects metal objects only (inductive sensing)
Compact M12 cylindrical housing
4 mm sensing distance
NPN, DC 3-wire output
Ideal for tight installation spaces
Red LED operation indicator
Reverse polarity & short-circuit protection
IP67 protection for industrial environments
| Parameter | Value |
|---|---|
| Model | PRD12-4DN |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M12 |
| Installation | Flush (Shielded) |
| Sensing Distance | 4 mm |
| Setting Distance | 0 – 2.8 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. 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
Control & junction panels
Packaging & assembly machines
Small & compact machinery
Position, limit & presence detection
OEM automation equipment
1 × Autonics PRD12-4DN Sensor
2 × Mounting nuts
Instruction leaflet
Q1. What material can PRD12-4DN detect?
Only metal objects (inductive sensing).
Q2. Is PRD12-4DN suitable for PLC input?
Yes. It has NPN DC 3-wire output, commonly used with PLC digital inputs.
Q3. What is the sensing distance?
4 mm for a standard iron target.
Q4. Is this sensor suitable for compact panels?
Yes. The M12 size makes it ideal for space-constrained installations.
Q5. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.
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