# Proximity sensor SN04-N2, 3 wires, NPN, NC, 10-30V

> SN04-N2 inductive proximity sensor with NPN NC output on 3 wires (Vcc, GND, NPN NC), supply voltage 10-30V DC, maximum output current 300 mA. Detects metallic objects without contact at a sensing distance of 4 mm ±10%. Integrated LED for status indication, IP68 protection, 120 cm cable, frequency response 0,5 kHz. Suitable for automation and industrial applications.

- Page: https://sigmanortec.ro/en/proximity-sensor-sn04-n2-3-wires-npn-nc-10-30v
- Price: 16.52 RON
- Availability: In stock; 1-2 zile
- Reference: 9826 · EAN: 5942133736447
- Category: Mechatronics and IoT > Sensors and Modules > Proximity and Photoelectric Sensors
- Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.055 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-21 22:18 (Europe/Bucharest)

## Description

Inductive sensor for non-contact detection of metal objects, ideal for automation and industrial applications. Offers 3-wire NPN NC output, 10-30V DC power supply and current up to 300mA, with integrated LED for status and detection distance up to 4 mm. Robust housing with IP68 protection and 120 cm cable ensure reliable installation and use.
Inductive proximity sensorSN04-N2, NPN, NC, for non-contact detection of metallic objects. The integrated LED indicator clearly displays the operating status, facilitating the monitoring of the activity in real time.
The detection distance is 4 mm MAXIMUM, with a tolerance of ±10%, perfectly adapting to magnetic and non-magnetic metals (with reduced sensitivity for the latter).
The construction is robust and offers IP68 protection, the sensor resistant to dust and moisture, being ideal for industrial environments.
It works at a voltage of 10-30V DC and supports an output current of maximum 300mA, effectively integrating into the control circuits.
It has mounting holes for easy fixing and a 120 cm long cable.
Specifications:
Supply voltage: 10-30V DC
Output current: Maximum 300 mA
Type: NPN, NC
Detection distance: 4 mm ±10%
Detected objects: Magnetic and non-magnetic metals (less detection distance for non-magnetic)
Optimal target size: Metal 18x18x1mm
Switching status indication: integrated LED
Frequency response: 0.5 kHz
Output: 3 wires (Vcc, GND, NPN NC)
Protection: IP68
Cable length: 120 cm
Use
Secure the sensor using the mounting holes and fix it on the desired surface, at an optimal distance from the metal target.
Correctly connect the wires to the power supply and the control circuit, following the NPN NC scheme (wires: Vcc, GND, NPN output).
Check the LED to track the status of the sensor in real time – the light indicates the activation or detection of an object.
* Carefully check the voltage marked on the sensor. The recommended voltage is between 10 and 30VDC.