ZEMPER electrical components Germany ZEMPER model ZEMPER price

ZEMPER electrical components are accessory products used to achieve electrical connections, categorized industrially as connectors. As the level of industrial automation increases and industrial control requirements become stricter and more precise, the usage of terminal blocks has gradually risen. With the development of the electronics industry, the scope of use for terminal blocks has expanded, and their varieties have increased. Besides PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, etc.

ZEMPER electrical components principle

Inductance is the ratio of the magnetic flux in a wire to the current producing this flux, where alternating current passing through the wire generates alternating magnetic flux inside and around it. When direct current passes through an inductor, only fixed magnetic field lines appear around it, not changing with time; however, when alternating current passes through a coil, magnetic field lines that change with time appear around it. Analyzing based on Faraday's law of electromagnetic induction—magnetism generating electricity—changing magnetic field lines generate an induced electromotive force at both ends of the coil, which acts as a "new power source." When a closed loop is formed, this induced electromotive force generates an induced current. According to Lenz's law, the total magnetic field lines generated by the induced current attempt to oppose the change in the original magnetic field lines. Since the change in the original magnetic field lines originates from changes in the externally applied alternating power source, objectively, the inductive coil has the characteristic of opposing changes in current in an AC circuit. An inductive coil has characteristics similar to inertia in mechanics, named "self-induction" in electrical engineering. Typically, sparks occur at the instant of opening or closing a knife switch, caused by the high induced electromotive force generated by the self-induction phenomenon.

ZEMPER electrical components composition

Internal accessories of circuit breakers: Auxiliary contacts are contacts mechanically linked with the opening and closing mechanism of the main circuit of the circuit breaker, mainly used to display the open/closed status of the circuit breaker. Connected in the control circuit of the circuit breaker, they implement control or interlocking of related electrical appliances through the opening and closing of the circuit breaker. Alarm contacts are used for accident alarms in circuit breakers, and these contacts only act after the circuit breaker trips and opens. They are mainly used when the load of the circuit breaker experiences faults such as overload, short circuit, or undervoltage, causing free tripping. The alarm contact switches from its normally open position to a closed position, connecting indicator lights, electric bells, buzzers, etc., in the auxiliary circuit to display or remind of the circuit breaker's fault trip status. Since the probability of free tripping due to load faults in circuit breakers is not very high. Shunt release: A shunt release is a release excited by a voltage source, and its voltage is independent of the main circuit voltage. A shunt release is an accessory for remote operation of opening. When the power supply voltage is any voltage between 70% and 110% of the rated control power supply voltage, the circuit breaker can reliably open. The shunt release operates on a short-time duty cycle, and the coil energization time generally cannot exceed 8S, otherwise the coil will be burned out. To prevent coil burnout in molded case circuit breakers, a microswitch is connected in series with the shunt release coil. When the shunt release pulls in via the armature, the microswitch switches from normally closed to normally open. Since the control circuit of the shunt release power supply is cut off, even if the button is manually pressed, the shunt coil will not be energized, thus avoiding coil damage. After the circuit breaker is reclosed, the microswitch returns to the normally closed position. Undervoltage release: An undervoltage release is a release that causes the circuit breaker to open with or without delay when its terminal voltage drops to a specified range. Under thermal conditions, it should ensure reliable closing of the circuit breaker. Therefore, when a certain voltage drop occurs in the power supply voltage of the protected circuit, it can automatically open the circuit breaker to cut off the power, protecting the load appliances or electrical equipment downstream of the circuit breaker from undervoltage damage. During use, the undervoltage release coil is connected to the power side of the circuit breaker; the circuit breaker can only close after the undervoltage release is energized.

ZEMPER electrical components principle

Photoelectric sensors generally consist of 2 parts: processing channels and processing elements. Their basic principle is based on the photoelectric effect, converting changes in the measured quantity into changes in optical signals, and then further converting non-electrical signals into electrical signals using photoelectric elements. The photoelectric effect refers to the phenomenon where light irradiating an object can be viewed as a stream of photons with certain energy bombarding the object. At this time, photon energy is transferred to electrons, and the entire energy of one photon is absorbed by one electron at once. After gaining the energy transferred by the photon, the state of the electron changes, causing corresponding electrical effects in the object exposed to light. The photoelectric effect is usually divided into 9 categories: (1) The phenomenon where electrons overflow the surface of an object under the action of light is called the external photoelectric effect, such as in phototubes and photomultiplier tubes; (2) The phenomenon where the resistivity of an object changes under the action of light is called the internal photoelectric effect, such as in photoresistors and phototransistors; (3) The phenomenon where an object generates an electromotive force in a certain direction under the action of light is called the photovoltaic effect, such as in photocells. Photoelectric detection methods have advantages such as high precision, fast response, and non-contact operation, and can measure many parameters. The sensor structure is simple and flexible in form, so photoelectric sensors are widely used in detection and control. Photoelectric sensors are key components for achieving photoelectric conversion in various photoelectric detection systems; they are devices that convert optical signals (visible and ultraviolet laser light) into electrical signals. Photoelectric sensors use photoelectric devices as conversion elements. They can be used to detect non-electrical physical quantities that directly cause changes in light intensity, such as light intensity, illuminance, radiation temperature measurement, gas composition analysis, etc.; they can also be used to detect other non-electrical quantities that can be converted into changes in light intensity, such as part diameter, surface roughness, strain, displacement, vibration, speed, acceleration, as well as object shape and working status recognition. Photoelectric sensors have characteristics such as non-contact operation, fast response, and reliable performance, so they are widely used in industrial automation devices and robots. New photoelectric devices continue to emerge, especially the birth of CCD image sensors, which has opened a new chapter for the further application of photoelectric sensors.

Weidou Intelligent Technology professionally sells German ZEMPER connectors, ZEMPER switches, ZEMPER relays, ZEMPER controllers, ZEMPER plugs, ZEMPER sensors, ZEMPER resistors, ZEMPER capacitors, ZEMPER buses, ZEMPER modules, ZEMPER cables, ZEMPER power supplies, ZEMPER interfaces, ZEMPER gateways, ZEMPER circuit breakers, ZEMPER original imports from Germany. Welcome customers to inquire and order.