
PRDL12-4DP Autonics Inductive Proximity Sensor
Autonics PRDL12-4DP Inductive Proximity Sensor – M12, 4 mm, PNP, DC 3-Wire
Autonics PRDL12-4DP is an M12 inductive proximity sensor with 4 mm sensing distance and PNP DC 3-wire output.
Designed for stable metal detection in compact PLC-based industrial automation.
The Autonics PRDL12-4DP is a long-body inductive proximity sensor developed for accurate detection of metal objects only in industrial automation systems. With its M12 threaded housing, 4 mm sensing distance (flush type), and PNP DC 3-wire output, it ensures reliable operation in compact machines, control panels, and OEM equipment where durability and signal stability are critical.
Key Features
Detects metal objects only (inductive sensing principle)
Compact M12 long-body cylindrical housing
4 mm sensing distance (flush / shielded)
PNP, DC 3-wire output
Improved mechanical stability (PRDL series)
Red LED operation indicator
Reverse polarity & short-circuit protection
IP67 protection for industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PRDL12-4DP |
| 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 | 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. 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 |
Applications
PLC-based automation systems
Compact control & junction panels
Packaging & assembly machines
OEM automation equipment
Position, limit & presence detection
Space-constrained machinery
What’s in the Box
1 × Autonics PRDL12-4DP Sensor
2 × Mounting nuts
Instruction leaflet
FAQ
Q1. What material can PRDL12-4DP detect?
Only metal objects (inductive sensing).
Q2. Is PRDL12-4DP suitable for PLC input?
Yes. It has a PNP DC 3-wire output, compatible with modern PLC inputs.
Q3. What is the sensing distance?
4 mm with a standard iron target.
Q4. What is the advantage of the PRDL series?
The PRDL series offers a longer body design, improving mechanical strength and mounting stability.
Q5. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.



