209-3-2599-377

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Circuit breakers offer inexpensive, low maintenance protection to electrical systems by automatically cutting off an electrical circuit when it detects an overload or short circuit in the system. The 209-3-2599-377 is a type of circuit breaker that provides reliable protection for electrical systems in commercial and industrial spaces. This article will explain the application field and working principle of the 209-3-2599-377.

The 209-3-2599-377 is a two-pole, thermal-magnetic circuit breaker suitable for use in residential and commercial applications. It can be used with a wide range of system voltages from 120 to 277 volts and offers reliable protection against short circuits, overcurrents, and ground fault currents. The 209-3-2599-377 has a trip curve that is designed to provide optimum protection and has a selectable long and short time delay to reduce nuisance trips. The 209-3-2599-377 can also be used in applications requiring high short circuit current ratings (SCCR), up to 100kA.

In terms of application fields, the 209-3-2599-377 is suitable for use in commercial and industrial spaces, as well as in residential applications. It can be used in a variety of applications requiring circuit protection, such as HVAC systems, machinery, and control circuits. The 209-3-2599-377 is designed to protect against short circuits, overloads, surges, and ground faults and is UL 489 listed to provide additional assurance of performance.

The 209-3-2599-377 is complimented with a long time-delay element, which is calibrated to delay the breaker trip time depending on the amount of current flowing through it. The long time-delay element works on the principle of thermal expansion – the heat generated by the flowing current is applied to the calibration screw, causing it to expand, and thus tripping the circuit breaker. This allows the circuit to continue to operate in the event of a minor overload, allowing users time to remedy the problem without tripping the circuit. The 209-3-2599-377 also has a magnetic trip element that quickly collapses under a short-circuit condition, tripping the circuit breaker on the order of milliseconds.

The 209-3-2599-377 is a highly reliable and effective circuit breaker suitable for a variety of electrical system protection applications. It is UL 489 listed and has a selectable long and short time delay to reduce nuisance trips, making it suitable for commercial, industrial, and residential applications. Its thermal-magnetic protection design offers reliable protection against short circuits, overcurrents, and ground fault currents, while its long time-delay element provides additional protection against minor overloads.

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