SE-330AU-20-00

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Protection Relays & Systems are important components of any electrical system. They provide an extra layer of protection against electrical hazards. The SE-330AU-20-00 is a protective relay that is especially designed for high-voltage and high-current applications.

The SE-330AU-20-00 is a dual element overload protection device, with a range of 16-20A. It has a thermistor burn out setting that varies depending on the temperature detected. The unit has a current setting and a trip setting that is adjustable. The adjustable current setting helps to ensure that the relay does not trip at currents within the normal range of operation, while the adjustable trip setting allows the user to set the trip threshold to the desired current level. The relay also provides an auxiliary contact that can be used for control or signaling.

The SE-330AU-20-00 is used mainly in the industrial and commercial sectors, where high current and high voltage are required. It is most often found in large, heavy machinery, where the overload protection is necessary to protect the components from potential electrical damage. It is also used in some residential applications, as it provides the desired overload protection and can help to prevent electrical fires.

The SE-330AU-20-00 has a characteristic called the TRP Curve, which is a graph that shows the current-time relationship of the current passing through the relay at various temperatures. The current-time relationship is used to determine the correct settings for the relay. This helps to determine the trip point for the overload protection.

The SE-330AU-20-00 relay operates on the principle of an electromechanical switch and a thermistor. When the voltage and current levels become too high, the thermistor heats up, changing its internal resistance value. This causes the electrical current to drop and the relay trips, breaking the circuit.

The SE-330AU-20-00 is a highly reliable and sensitive overload relay that is designed for applications with high current and high voltage. It is the relay of choice for many industrial and commercial applications because of its adjustable current and trip settings, TRP Curve, and overload protection. This makes it an ideal choice for those applications where overload protection is a must.

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