Autonics Proximity Sensor Inductive PRT12-4DC

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70.00 Grams
Minimum Purchase:
1 unit
Calculated at Checkout


The PR series inductive proximity sensors feature solid sensing performance and excellent noise immunity with a specialized sensor IC developed by Autonics. Available in various sizes and sensing distances, the standard cylindrical inductive sensors can be used in diverse applications requiring non-contact detection of metallic objects. The PR series is available in DC 2-wire, DC 3-wire, AC 2-wire types.

PRT12-4DC comes in a round cylindrical shape, with a sensing distance of 4mm., with sensing side diameter and housing size of M12, non-shielded (non-flush) installation, DC 2-wire type (12~24VDC), normally closed and Brass (nickel-plated). PRT12-4DC from Autonics comes with the following features:

  • Improved noise resistance with dedicated IC (DC 3 wire).
  • Long life cycle and simple operations.
  • Reverse power polarity (DC 3-wire), surge, over-current protection (DC type).
  • IP67 rated waterproof structure from IEC standards.
  • Red LED status indicator.
  • Replacer for micro switches and limit switches.


Brand Information

“Autonics” is a leading provider of automation solutions from South Korea. They develop and manufacture a wide range of automation products which are marketed worldwide. Their core products include various sensors, controllers, and motion devices, measuring equipment, laser marking systems, connection equipment and more. Autonics products are trusted and adopted by engineers in various industrial applications and their technology is widely applied in day-to-day automation devices.

With 12 international offices in South Korea, China, Japan, India, Vietnam, Indonesia, Malaysia, Russia, Turkey, USA, Brazil, Mexico, Autonics is able to provide comprehensive automation solutions for their customers across the globe.

Data Sheet

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Warranty Information

One Year Warranty
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Additional Information

Sensing Distance:
4mm ±10%
Maximum 10% of sensing distance
Standard sensing target:
12x12x1mm (Iron)
Setting distance:
Current consumption/leakage:
Max 0.6mA
Power supply (operational voltage):
24 VDC (10-30 VDC)
Response frequency:
500 Hz
Residual Voltage:
Max 7 V
Affection by temp:
±10% max for sensing distance at +20◦C within temp range -20~70◦C
Control output:
Dielectric Strength:
1500 VAC 50/60 Hz/min
Insulation resistance:
Min 500MΩ (at 500 VDC mega)
Approx 63g
50G in x,y,z directions for 3 hours
Operation indicator (Red Light)
Ambient temperature:
Storage temperature:
Ambient humidity:
35~95 HR
Surge, over-current protection circuit
Protection circuit:
IP67 (IEC standard)
Cable specs:
Ø4x2P, 2m
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