209-3-4751-1

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Circuit Breakers: 209-3-4751-1 Application Field and Working Principle

Circuit breakers are electrical safety devices which are used to protect electrical systems and equipment from fire, electrical shock, damage due to excess current, and other dangerous conditions. They are commonly found in residential, commercial, and industrial electrical systems.The 209-3-4751-1 circuit breaker is an automatic, double pole, air-circuit breaker with overload protection. Air-circuit breakers use air as an insulation medium, which offers more reliable operation than other types of circuit breakers and switches, including vacuum and oil circuit breakers. The 209-3-4751-1 breaker has a switch rating of 350 amps.The 209-3-4751-1 circuit breaker’s primary function is to protect electrical circuits in case of a fault or short circuit. This is done by detecting the fault current, and opening or tripping the circuit, effectively disconnecting the faulty circuit from the power supply. This prevents any further increase in current, reducing the risk of fire and other damage associated with an electrical fault.The 209-3-4751-1 breaker includes an overload protection feature. This feature helps to protect the electrical system and equipment against over current. If a circuit becomes overloaded, the overload trips the circuit, preventing further increase in the current, and reducing the risk of fire and equipment damage. The overload protection feature is adjustable, allowing for the protection settings to be tailored to the electrical system’s requirements.The 209-3-4751-1 circuit breaker also includes a lockout feature. This feature prevents the breaker from being reset after it has been tripped due to an overload or short circuit. It is a safety feature to ensure that the user is aware of the fault and takes appropriate action to fix the problem before resetting the circuit.The 209-3-4751-1 breaker is suitable for use in residential, commercial, and industrial applications. It is designed for use in indoor installations, and is rated for a wide variety of voltages and frequencies. It can be used to protect AC circuits up to 250 volts, up to 50 hertz.In conclusion, the 209-3-4751-1 air-circuit breaker is an effective safety device for protecting electrical circuits from excess current, fire, and other dangerous conditions. It is commonly used in residential, commercial, and industrial applications, and offers reliable protection due to its overload and lockout features.

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