This section provides overview, applications, and principles of operation boxes. Also, please take a look at the list of 5 operation box manufacturers and their company rankings.
An operation box is a box for storing control-related equipment and operation switches.
In particular, it is a small box for operating control equipment for various machines, devices, or facilities and for operating them in a separate location from the control panel that houses the control equipment.
The operation box is used by mounting pushbuttons for operation, selection switches, and lamps to indicate that the box is operating on the surface of the box.
Operation boxes are mainly used to remotely operate control systems such as control panels or equipment when they are operated at a location other than where they are installed.
The control system or other equipment is connected to the operation box with a cable, and the box is fixed to the wall or structure where it is operated. It can also be mounted on a pole-type stand for free-standing installation, or the operation box is held by hand. In particular, the external dimensions are comparatively small because only devices dedicated to operation (pushbuttons, switching switches, etc.) are installed.
There are various types of operation boxes, including stand-alone boxes, boxes with pre-drilled holes for mounting operation switches, and boxes with pre-installed operation switches.
The structure of an operation box consists of a mounting base (middle plate) inside the box to which operating equipment, terminal blocks, etc. are attached and a surface cover (lid) or door that can be screwed onto the box, opened, and closed with a hinge, or even locked.
The box body is manufactured by bending and welding steel plates such as iron and stainless steel, aluminum casting, polycarbonate, and polybutylene terephthalate resin. Material selection is based on the location of use (indoor/outdoor), whether waterproof/drip-proof/oil-proof/dust-proof properties are required, and the required protection class.
In addition, if the product is to be used in an explosive atmosphere, which is called a "hazardous area" where flammable gas, vapor, dust, and oxygen (air) are mixed, an approved operation box should be selected in accordance with the degree of danger.
The size of the box should be from 100 to 700 mm in length and width and from 100 to 500 mm in depth. Selection is based on the size and quantity of operating equipment to be installed inside or on the sides or lid of the box and cable glands for drawing in cables.
*Including some distributors, etc.
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