Jean Mueller electrical components Germany Jean Mueller models Jean Mueller prices

Jean Mueller electrical components refer to switching devices capable of closing, carrying, and breaking current under normal circuit conditions, and capable of closing, carrying, and breaking current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague; generally, equipment above 3kV is referred to as high-voltage electrical apparatus. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When severe faults such as overload, short circuit, or undervoltage occur, they can automatically cut off the circuit. Their function is equivalent to a combination of fuse switches and over/under thermal relays. Moreover, component replacement is generally not required after interrupting fault currents. They have been widely applied. In the generation, transmission, and use of electricity, power distribution is an extremely important link. The distribution system includes transformers and various high- and low-voltage electrical equipment, while low-voltage circuit breakers are a type of electrical apparatus with large usage volume and wide application.

Jean Mueller electrical components classification

Terminal blocks can be divided into European-style terminal block series, plug-in terminal block series, transformer terminal blocks, building wiring terminals, fence-type terminal block series, spring-type terminal block series, DIN rail-mounted terminal block series, wall-through terminal block series, optocoupler-type terminal block series, various ring terminals, tubular terminals, wire terminals, copper strips, iron strips, etc. Usage methods include plug-in, fence-type, spring-type, DIN rail-mounted, wall-through, and fuse terminals.

Jean Mueller electrical components principle

A transformer is a device that changes AC voltage using the principle of electromagnetic induction. Its main components are the primary coil, secondary coil, and iron core (magnetic core). In electrical equipment and wireless circuits, it is commonly used for stepping voltage up or down, impedance matching, and safety isolation. In generators, whether the coil moves through a magnetic field or the magnetic field moves through a fixed coil, an electromotive force is induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux linking the coil varies; this is the principle of mutual induction. A transformer is a device that utilizes electromagnetic mutual induction to transform voltage, current, and impedance.

Jean Mueller electrical components principle

Optical measurement and control systems manufactured based on different principles of luminous flux action on photoelectric elements are diverse. According to the nature of the output quantity of the photoelectric element (optical measurement and control system), they can be divided into two categories: analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured quantity into a continuously changing photocurrent, exhibiting a single-valued relationship with the measured quantity. Analog photoelectric sensors can be divided into three major types based on the method of measuring the target object: transmissive (absorptive), diffuse reflective, and light-blocking (beam obstruction). Transmissive type refers to placing the measured object in the optical path; the light energy emitted by a constant light source passes through the measured object, and after partial absorption, the transmitted light projects onto the photoelectric element. Diffuse reflective type refers to light from a constant source projecting onto the measured object, reflecting off its surface, and then projecting onto the photoelectric element. Light-blocking type refers to the measured object obstructing part of the luminous flux from the light source, causing a change in the luminous flux projected onto the photoelectric element; the degree of change depends on the position of the measured object in the optical path. Photodiodes are the most common light sensors. The appearance of a photodiode is similar to that of a general diode. When there is no illumination, its reverse current is very small, known as the dark current of the photodiode, similar to a ordinary diode. When illuminated, carriers are excited, generating electron-hole pairs, known as photo-carriers. Under the influence of an external electric field, these photo-carriers participate in conduction, forming a reverse current much larger than the dark current, which is called photocurrent. The magnitude of the photocurrent is proportional to the light intensity, so an electrical signal varying with light intensity can be obtained across the load resistor.

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