Autonics PSN40-20DN: square inductive proximity sensor from the Autonics PS range (Rectangular Inductive Proximity Sensors).
Inductive proximity sensors detect metal objects without touching them: the sensing face produces a high-frequency field, and a metal target entering it changes the oscillation and switches the output. With no moving parts there is no mechanical wear, which is why they are the most common position sensor on machines.
More Autonics PS models and other Autonics parts: Autonics range.
Technical data
| Autonics model | PSN40-20DN |
|---|---|
| Series | PS – Rectangular Inductive Proximity Sensors |
| Wire type and power | DC 3-wire type 12-24VDC |
| Sensing side size | Frame size 40mm |
| Sensing distance | 20mm |
| Standard sensing target | 60×60×1mm(iron) |
| Response frequency | 100Hz |
| Current specification | Current consumption: Max. 10mA |
| Control output | NPN Normally Open |
| Sensing type | Standard type(front sensing type) |
| Material | Heat-resistant ABS |
| Protection structure | IP67 |
| Ambient temperature | -25 to 70°C, storage: -30 to 80°C |
| Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Hysteresis(distance) | Max. 10% of sensing distance |
| الوزن | ≈ 135g (≈225g) |
| Brand | Autonics |
| Condition | New, original |
Main characteristics
- Wire type and power: DC 3-wire type 12-24VDC
- Sensing side size: Frame size 40mm
- Sensing distance: 20mm
- Standard sensing target: 60×60×1mm(iron)
- Response frequency: 100Hz
Typical applications
- Conveyor, packaging and palletising lines
- Counting metal parts and gear teeth
- Position and end-of-stroke detection on machines
- Machine tools and presses
- Replacement of a damaged sensor
Compatibility and replacement
Order with the full model code PSN40-20DN: in the Autonics code the letters and digits after the series select the size, sensing distance or resolution, the output type and the supply, so a different suffix may not fit your wiring.
Compare the old unit with the technical data above (taken from the official Autonics data sheet); if anything differs, send us a photo and we will check it.
What to check first
- Thread size and housing length
- Sensing distance
- Connection: pre-wired cable length or M8/M12 connector
Frequently asked questions
What is the response frequency?
100Hz, according to the Autonics data sheet.
What is the output rating?
NPN Normally Open, according to the Autonics data sheet.
What wiring and supply does it use?
DC 3-wire type 12-24VDC, according to the Autonics data sheet.
What is the protection rating?
IP67, according to the Autonics data sheet.
Can you help me identify the right replacement?
Yes. Send us a photo of the label of the old part, or its full order code, and we will confirm the exact match or the official successor before quoting.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
