Autonics PR18-5AC Cylindrical Inductive Proximity Sensor
PR18-5AC cylindrical inductive proximity sensor provides M18 diameter, 5mm sensing distance, flush mounting, and normally closed output operation applications. Manufactured by Autonics, this Autonics Cylindrical Inductive Proximity Sensors model belongs to Autonics Proximity Sensors and the PR Series, operating on AC 2-wire 100–240V supply with IP67 protection, 20Hz response frequency, and controlled leakage current.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-5AC |
Autonics PR18-5AC Cylindrical Inductive Proximity Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 5mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 18×18×1mm(iron) |
| Current specification | Leakage current: Max. 2.5mA |
| Control output | Normally Closed |
| Wire type and power | AC 2-wire type100-240VAC~ |
| Installation | Flush |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 1kV) |
| Residual voltage | Max. 10V |
| Environment_Ambient temperature | -25 to 70℃, storage: -30 to 80℃ |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67(IEC standard) |
| Material | Brass(nickel plated) |
| Response frequency | 20Hz |
| Weight | Approx. 130g(approx. 118g) |
The Autonics PR18-5AC Cylindrical Inductive Proximity Sensors is used in industrial automation systems requiring reliable AC-powered sensing. This model features a M18 cylindrical body, 5mm sensing distance, and normally closed output with AC 2-wire 100–240V operation. It belongs to the PR Series from Autonics and is commonly specified across Indian industrial automation installations.
In industrial environments, the PR18-5AC proximity sensor is applied in conveyors, packaging machinery, automated assembly lines, and material handling systems. Flush installation supports compact machine layouts, while inductive sensing ensures consistent metal target detection. This helps maintain stable switching behavior and dependable output performance in AC-controlled automation processes.
The PR18-5AC from Autonics delivers consistent sensing performance supported by IP67 protection and defined electrical characteristics. As part of the Autonics PR Series, it aligns with standardized sensing targets and industrial installation practices. This Autonics Cylindrical Inductive Proximity Sensors model remains suitable for engineers seeking reliable proximity detection for long-term industrial automation use.




