4430.0385 Circuit Protection

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Circuit Breakers are an essential component of any electrical system. Without them, overvoltage, overload, and short circuits could quickly lead to catastrophic failure. The 4430.0385 is a type of circuit breaker designed to meet the needs of industrial and commercial applications. It is ideal for use in large or heavily loaded circuits, such as those used in retail stores, warehouses, and factories.

The 4430.0385 circuit breaker is rated for 30kA sym on 480Y/277V three-phase AC. It is available in single or three-pole configurations with trip time parameters of 5 seconds and 135 seconds, respectively. It has a grounding terminal with a hole diameter of 10.5mm and a width of 54mm. The device can be used in temperatures ranging from -40°C to 65°C.

The 4430.0385 works by interrupting power when an overvoltage, overload, or short circuit occurs. As current passes through the breaker, an electromagnet connected to the breaker armature is energized. When the current flow exceeds a certain level, the electromagnet will pull the armature and open the breaker contacts, interrupting the circuit. The 4430.0385 features adjustable trip settings that can be used to set the overvoltage or overload threshold.

In addition to circuit protection, the 4430.0385 provides various features for improved safety. The device includes an open air gap switch and a visible trip indicator that provide visual cues when the breaker has been manually or automatically tripped. The breaker also includes a lockable handle that prevents it from being inadvertently switched on. Finally, the device has a low-voltage release that will trip the breaker at 420V AC.

The 4430.0385 is designed to provide reliable circuit protection in commercial and industrial applications. Its adjustable trip settings and safety features make it an ideal choice for protecting large or heavily loaded circuits. It is simple to install, and once it has been wired into the circuit, it will provide reliable protection for years to come.

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