B88069X4350C102

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Gas Discharge Tube Arresters (GDT) contain a gas-filled, spark-gap system that behaves similarly to a miniature version of a lightning rod. GDTs are divided into two parts: a main body containing the gas discharge tube and an outer body which houses the terminal connections. GDTs are primarily designed to effectively suppress surges in electric power systems. The particular GDT in the focus of this article, B88069X4350C102, has a wide range of applications and works on the principles of electrical current coordination.

It is capable of protecting against multiple lightning and surge events as well as induced surges. The device isolates high-voltage fault currents occurring parallel the electrical system path and releases them into the ground. It also provides protection against indirect lightning strikes as well as insulation faults. The B88069X4350C102 has an advantage over traditional arrester types, such as metal oxide varistors (MOVs), in that it is not triggered by random lightning strikes, nor by contact to direct lightning strikes.

One of the primary applications of this particular GDT is to protect industrial control systems, PLCs, and motor drives from voltage sags, transients and even inrush currents. Such protections can prevent malfunctions, data losses, and even catastrophic electrical damage. It can also be used in cable headend protection, such as broadband services and fiber optics, in order to protect both equipment and data transmissions.

The GDT works on the principle of electrical current coordination. To this end, the device divides the whole-system current into two parts: the "critical" current and the "non-critical" current. The critical current is then monitored and coordinated to ensure that it does not exceed the specified limit. In other words, the GDT functions to reroute the fault current through a process of electrical current coordination. As the device quickly interrupts the electrical current flow, the surge is diverted to earth, protecting the system.

The B88069X4350C102 measures 5.38” H x 0.875” W x 0.82” D and requires an operating temperature between -40 °C and +105 °C. It is UL recognized with 2500 A surge rating and a 10/350 µs surge waveform. In terms of installation, the device requires direct installation in an appropriate enclosure or outlet, and proper grounding is necessary for a working arrester.

In summation, the B88069X4350C102 is an effective gas discharge tube arrestor that is capable of providing surge protection equipment in a variety of industrial control systems, PLCs, and motor drives. This particular GDT offers enhanced protection against lightning, surges, and induced transients. By quickly rerouting fault current through a process of electrical current coordination, the device protects the system from potentially catastrophic damage.

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