BK/CB181F-120

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The BK/CB181F-120 is an important air pressure switch designed for automatic control of compressor motors. This device includes a fixed-point setting, which is factory-set at a given value. Once this point is reached, the switch opens or closes, as required. This switch also includes 150 psi(1MPa) adjustable range.

The BK/CB181F-120 is used for the direct control of refrigerator/freezer motor and other fan motors, which require an adjusted air pressure. The device is of special importance for applications where a pressure-resistant system must be specified in order to guarantee its proper operation. Therefore, the application of this switch is perfect for the safety of these kinds of systems.

Moreover, the device includes a direct switch action, along with a maximum current rating of 5A, a response time of around 3-4 seconds and a compact size which allows for easy installation. It includes an audible and visual signal indicating the opening/closing of the switch.

The working principle of the BK/CB181F-120 is based on the measuring of the air pressure in the system. The pressure forces two plates which are held against each other by an adjustable spring. The spring’s force can be adjusted by the factory setting screw, which is factory set for a given value. When the air pressure in the system rises above the set value, the two plates are separated, and a contact is opened/closed depending on the position of the switch.

In conclusion, the BK/CB181F-120 is a versatile air pressure switch designed for automatic control of compressor motors. This device includes an adjustable range of 150 psi and a direct switch action, along with a maximum current rating of 5A. The working principle of this device is based on measuring of the air pressure in the system, and the adjustable spring can be factory set for a given value. This device is commonly used for refrigerator/freezer motor and other fan motor applications where a pressure-resistant system must be specified.

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