SN04-N Inductive Proximity Sensor

What is the SN04-N proximity sensor? 

• Need automatic load activation when a metal object approaches? Lorentzzi® SN04-N inductive proximity sensor is the ideal choice.
• The SN04-N features an NPN normally open (NO) output and a sensing range of 4 mm, designed for non-contact detection of various metal targets.
• Based on the principle of electromagnetic eddy currents, the sensor outputs a low level and the circuit changes from normally open to normally closed when a metal work-piece enters its 4 mm detection area. For driving high-power loads such as AC contactors and solenoid valves, simply use it in conjunction with an intermediate relay to amplify the power.

How to wire this proximity switch?

• This sensor has three wires: brown, blue, and black. The brown wire needs to be connected to the positive terminal of the DC power supply, and the blue wire needs to be connected to the negative terminal. The black wire is the output wire. Since the SN04-N is an NPN type sensor, the load needs to be connected between this output wire and the positive terminal.

SN04-N inductive proximity sensor applications:

• Metal parts detection on production lines.
• Collision detection in robotics.
• Safety and security in interlock systems.
• Packaging industry.
• Position sensing of a machine element, such as a valve, gate, or elevator.