30411-20

Circuit breakers are devices that protect circuits by breaking off the current flow when an overload occurs. They enable the user to shut off power to one area of a circuit, while maintaining power to other areas of the circuit. Circuit breakers are an indispensable component of electrical systems and are found in a variety of applications. One of these is the 30411-20, a type of circuit breaker.

The 30411-20 has a thermal-magnetic trip unit and is used to protect power distributions in industrial and commercial buildings. It is a versatile circuit breaker that meets the requirements of both residential and commercial installations. Its rating range of 50 to 1600 amperes makes it suitable for a variety of applications in a variety of voltages.

The 30411-20 utilizes a thermal-magnetic design to detect and interrupt an overload. Thermal-magnetic circuit breakers are designed with a thermal element and a magnetic element in place. The thermal element detects the steady-state currents, short-time overloads, and certain long-term overloads, while the magnetic element detects extremely high currents from short-circuits and other rapid electric events. When the current reaches a certain level, the magnetic element acts first, and then the thermal element acts as a backup.

The 3041-20 also provides overload, short-circuit, and ground fault protection for overcurrents. The breaker also acts as a main switch, allowing the circuit to be switched off and on without disrupting service. The 30411-20 is equipped with a shunt-trip device and a test key that allows testing and troubleshooting.

The 30411-20 is UL 489 listed, meaning that it meets standards for safety and quality assurance. The breaker is RoHS compliant and comes in a wide range of voltage ratings, from 208 volts to 600 volts. It also has an IP 30 rating and is designed to operate in temperatures ranging from -30 °C to 50 °C.

The 30411-20 is a great choice for protecting power distributions in industrial and commercial buildings. With its thermal-magnetic design, wide range of voltage ratings and UL listing, it is an invaluable component of any electrical system.