The IA8-122 waterproof and oil proof proximity switch wiring method generally has metal threads on the periphery, and the embedded finger sensor head is fully wrapped in the metal threads; Non embedded means that the sensing head will expose the metal threads. Mainly to meet installation requirements. If the detected object is tightly attached to the surface, an embedded method can be used; If the object is not detected to be suspended, a non buried type can be used. IA8-122 Waterproof and Oil proof Proximity Switch Wiring Method: Three wire wiring method: Zong colored represents the positive pole of the power supply, blue represents the negative pole of the power supply, and black represents the load (signal output). Please refer to the wiring diagram on the product< The wiring method for two wires (DC or AC): The brown wire is connected to the negative pole of the load, the positive pole of the load is then connected to the positive pole of the power supply, and the blue wire is directly connected to the negative pole of the power supply. Introduction: This product has a compact structure, small weight, and long working life of switch components. It can be installed in limited space and is extremely suitable for miniaturized equipment. Widely used in mines with explosive mixtures such as methane and coal dust, and in corrosive environments without damaging insulation. The difference between normally closed (NC) inductive proximity switches: Firstly, normally open (NO) means that the signal output line is in the open state under normal conditions, with no signal output. It only closes when an object is sensed and outputs a signal< Secondly, normally closed (NC) refers to the signal output line being in a closed state under normal conditions, with continuous signal output. It only opens and closes when an object is sensed. Magnetic induction proximity switch XDT-CX-AD1 explosion-proof BZX51-5D voltage 220V