Do you know what factors need to be considered when purchasing relays?
Due to the continuous development of intelligence, there are more and more manufacturers producing intermediate relay products, and products of various models and qualities are emerging in the market, so everyone must learn the correct intermediate relay products. Then we must consider several factors when purchasing intermediate relay products.
Main selection parameters
1. First determine how many inputs there are, such as 3, 4, etc.
2. Then determine how many outputs there are (where inputs include: normally open-NO, normally closed-NC)
3. Output power: the product of the maximum output current and voltage, including AC and DC outputs
4. Power supply: Generally, DC: DC24V, AC: AC230V, etc.
Main parameters for selecting intermediate relays
a) First ask the customer about the material of the object to be detected, whether it is metal or non-metal, etc., to confirm the large series
b) Product shell material: According to different application environments and divided into metal shell, non-metal shell, etc.
c) The installation shape of the switch, generally for cylindrical ones, ask about the thread specifications and dimensions of the outer diameter, such as: M18 (indicates M18X1), M12 (indicates M12X1), etc.
d) Approach distance: The distance between the installation sensor and the detected object, there are 2mm, 10mm, 20mm, etc.
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