Autonics PRDT12-4XO Inductive Proximity Sensor – M12, 4 mm, AC/DC 2-Wire, NO
Autonics PRDT12-4XO is a compact M12 inductive proximity sensor with 4 mm sensing distance and AC/DC 2-wire normally open output.
Suitable for simple metal detection in both AC and DC control circuits.
The Autonics PRDT12-4XO is a compact 2-wire inductive proximity sensor designed to detect metal objects only in industrial environments. With its M12 threaded housing, 4 mm sensing distance, and AC/DC normally open output, it can be directly used in both AC and DC circuits, making it ideal for simple automation, relays, contactors, and compact control panels.
Detects metal objects only (inductive sensing principle)
Compact M12 cylindrical housing
4 mm sensing distance (flush / shielded)
AC/DC 2-wire, Normally Open (NO) output
Simple wiring—no polarity for AC operation
Red LED operation indicator
Surge protection circuit
IP67 protection for industrial environments
| Parameter | Value |
|---|---|
| Model | PRDT12-4XO |
| 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 | AC/DC 2-Wire, NO |
| Operating Voltage | 20–250 V AC / 20–250 V DC |
| Leakage Current | ≤ 1.7 mA |
| Load Current | 5–200 mA |
| Residual Voltage | ≤ 10 V |
| Response Frequency | Approx. 20 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 |
AC & DC relay control circuits
Contactors & pilot lamp control
Compact control panels
Packaging & assembly machines
OEM automation equipment
Simple presence detection of metal parts
1 × Autonics PRDT12-4XO Sensor
2 × Mounting nuts
Instruction leaflet
Q1. What does “XO” indicate in this model?
It indicates AC/DC 2-wire normally open output.
Q2. Can PRDT12-4XO work on both AC and DC supplies?
Yes, it supports 20–250 V AC/DC.
Q3. Is this sensor suitable for PLC DC inputs?
Generally not recommended; it is better suited for relay or contactor circuits.
Q4. What material can it detect?
Only metal objects.
Q5. What is the sensing distance?
4 mm with a standard iron target.
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