PR12-2AO Autonics Inductive Proximity Sensor
Autonics PR12-2AO Inductive Proximity Sensor – M12, 2 mm, AC 2-Wire, NO
Autonics PR12-2AO is an M12 inductive proximity sensor with 2 mm sensing distance and AC 2-wire normally open output.
Ideal for direct AC control circuits, relays, and industrial automation without PLC interfaces.
The Autonics PR12-2AO is a rugged inductive proximity sensor designed for metal object detection in AC-powered control circuits. With an M12 threaded housing, 2 mm sensing distance, and AC 2-wire normally open output, it can directly switch AC loads such as relays, contactors, and indicator lamps.
Key Features
Detects metal objects only (inductive sensing)
M12 cylindrical housing
2 mm sensing distance
AC 2-wire, Normally Open (NO) output
Direct AC load switching
Red LED operation indicator
Surge protection circuit
IP67 protection for industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PR12-2AO |
| 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 | AC 2-Wire, Normally Open (NO) |
| Operating Voltage | 100–240 V AC (50/60 Hz) |
| Leakage Current | ≤ 2.2 mA |
| Load Current | 5 – 200 mA |
| Residual Voltage | ≤ 20 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 |
Applications
AC relay & contactor control
Conveyor systems
Packaging & assembly machines
Limit & position detection
Industrial control panels
Simple automation without PLC
What’s in the Box
1 × Autonics PR12-2AO Sensor
2 × Mounting nuts
1 × Washer
Instruction leaflet
FAQ
Q1. What type of load can the PR12-2AO switch?
AC loads such as relays, contactors, and lamps (5–200 mA).
Q2. Is this sensor suitable for PLC input?
No. This is an AC 2-wire sensor, not for DC PLC inputs.
Q3. What does AO mean in the model?
A = AC type, O = Normally Open output.
Q4. What material can it detect?
Only metal objects.
Q5. Is it suitable for industrial environments?
Yes. It has IP67 protection and surge protection.