TREK INC electrical components Germany TREK INC model TREK INC price

TREK INC electrical components are accessory products used to achieve electrical connections, categorized industrially as connectors. As industrial automation levels rise and industrial control requirements become stricter and more precise, the usage of terminal blocks is gradually increasing. With the development of the electronics industry, the scope of use for terminal blocks is expanding, and the variety is growing. Besides PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, etc.

TREK INC electrical components composition

Internal circuit breaker accessories: Auxiliary contacts are contacts mechanically linked to the opening and closing mechanism of the circuit breaker's main circuit. They are primarily used to display the open/closed status of the circuit breaker. Connected in the control circuit, they implement control or interlocking of related electrical devices through the opening and closing of the circuit breaker. Alarm contacts are used for circuit breaker accident alarms. These contacts only operate after the circuit breaker trips and opens. They are primarily used when the circuit breaker freely trips due to faults such as overload, short circuit, or undervoltage in the load. 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 alert to the fault trip status of the circuit breaker. Since the probability of free tripping due to load faults is relatively low. Shunt release: A shunt release is a release excited by a voltage source; its voltage is independent of the main circuit voltage. It is an accessory for remote opening operation. When the power supply voltage equals 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; the coil energization time generally must not exceed 4S, otherwise the coil will burn 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 for the shunt release power is cut off, even if the button is manually held down, the shunt coil will not be energized, thus avoiding coil damage. After the circuit breaker is reset and closed, 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 must 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 power, protecting downstream load appliances or electrical equipment 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.

TREK INC electrical components principle

The basic working principle of fiber optic sensors is to guide light from a source through an optical fiber into a modulator. The interaction between the parameter to be measured and the light entering the modulation zone causes changes in the optical properties of the light (such as intensity, wavelength, frequency, phase, polarization state, etc.), resulting in modulated signal light. Measurement is completed by utilizing the influence of the measured quantity on the transmission characteristics of light. There are two measurement principles for fiber optic sensors: (1) Physical property type fiber optic sensor principle: Physical property type fiber optic sensors utilize the sensitivity of the optical fiber to environmental changes to convert input physical quantities into modulated optical signals. Their working principle is based on the optical modulation effect of the fiber, i.e., the phenomenon where light transmission characteristics, such as phase and light intensity, change when external environmental factors like temperature, pressure, electric field, magnetic field, etc., change. Therefore, by measuring changes in light phase and intensity through the fiber, changes in the measured physical quantity can be determined. These sensors are also known as sensitive element type or functional fiber optic sensors. The point source beam of a laser is diffused into parallel waves and split by a beam splitter into two paths: one reference path and one measurement path. External parameters (temperature, pressure, vibration, etc.) cause changes in fiber length and optical phase, generating different numbers of interference fringes. Counting their lateral movement allows measurement of temperature or pressure. (4) Structural type fiber optic sensor principle: Structural type fiber optic sensors are measurement systems composed of light detection elements (sensitive elements), optical fiber transmission loops, and measurement circuits. Here, the optical fiber serves only as a medium for light propagation, so they are also called non-functional or light-transmitting fiber optic sensors.

TREK INC electrical components classification

Self-inductors generate a magnetic field around the coil when current flows through it. When the current in the coil changes, the surrounding magnetic field changes correspondingly. This changing magnetic field induces an electromotive force (induced EMF) in the coil itself (EMF represents the terminal voltage of an ideal power source of an active component), which is self-inductance. Electronic components made by winding wire with a certain number of turns, capable of producing a certain amount of self-inductance or mutual inductance, are commonly called inductor coils. To increase inductance, improve the quality factor, and reduce volume, iron cores or magnetic cores made of ferromagnetic materials are often added. Basic parameters of inductors include inductance, quality factor, inherent capacitance, stability, current rating, and operating frequency. Inductors composed of a single coil are called self-inductors, and their self-inductance is also known as the self-inductance coefficient. Mutual inductors occur when two inductor coils are close to each other; a change in the magnetic field of one coil affects the other. This effect is mutual inductance. The magnitude of mutual inductance depends on the self-inductance of the coils and the degree of coupling between them. Components manufactured using this principle are called mutual inductors.

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