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Question:

What is the meaning of the full seal of the relay?

What is the meaning of the full seal of the relay?

Answer:

Full sealing of the relay: the coil and the contacts are all sealed in a metal cover seal or plastic cover inside the relay. Consider the factors such as temperature, humidity, atmospheric pressure (altitude), coastal atmosphere (salt mist corrosion), sand and dust pollution, chemical gas and electromagnetic interference, taking into account the general applicability of the industry and the natural environment throughout the country, Reliable operation of the particularity of the key parts of the control system must be selected with high insulation, strong resistance to electrical performance of the whole sealed (metal cover seal or plastic type, metal cover sealing products better than plastic products) relay products. Because only the sealed relay has excellent long-term tolerance to harsh environmental performance, good electrical contact stability, reliability and stable switching load capacity (not affected by external climate and environment). The relay is an electrical control device that is an electrical appliance that causes a predetermined step change in the electrical output circuit when the input quantity (amount of excitation) changes to the specified requirement. It has a control system (also known as the input circuit) and the control system (also known as the output circuit) between the interaction. Usually used in automated control circuits, it is actually a small current to control the operation of a large current "automatic switch". So in the circuit plays an automatic adjustment, security protection, conversion circuit and so on.
May 9, 2017
Full sealing of the relay: the coil and the contacts are all sealed in a metal cover seal or plastic cover inside the relay. Consider the factors such as temperature, humidity, atmospheric pressure (altitude), coastal atmosphere (salt mist corrosion), sand and dust pollution, chemical gas and electromagnetic interference, taking into account the general applicability of the industry and the natural environment throughout the country, Reliable operation of the particularity of the key parts of the control system must be selected with high insulation, strong resistance to electrical performance of the whole sealed (metal cover seal or plastic type, metal cover sealing products better than plastic products) relay products. Because only the fully sealed relay has excellent long-term tolerance to harsh environmental performance, good electrical contact stability, reliability and stable switching load capacity (not affected by external climate and environment).
May 9, 2017
That is, from the appearance point of view, in addition to the relay lead wire contacts, its internal structure is not visible.
May 9, 2017

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