AC contactors are an important part of industrial circuits. They act as electrical switches that control high voltage and current. The combination of AC contactors and protective starters contributes to the effective control and safety of industrial machinery. In this blog, we will discuss the structural features and usage precautions of AC contactors.
Structural features:
AC contactors have various structural features and operating mechanisms that enable them to efficiently control power circuits. The starter has plastic shell type, metal shell type and other protection types, and the protection level can reach IP65. A protective case ensures the durability and condition of the AC contactor in harsh operating environments.
The operating mechanism is a manual start-stop button, and the starter is an irreversible starter with a thermal (overload) relay. Use thermal (overload) relays to prevent overheating and ensure safety in the event of overcurrent. The starter adopts JLE1 AC contactor with 35mm standard guide rail, which can be directly buckled on the starter base. The three-phase lead-out hard wire of the thermal (overload) relay can be directly inserted into the three-phase main contact of the contactor, which is convenient for assembly and wiring.
Precautions for use:
The main technical performance indicators and components of the starter must be considered before installation. It must be ensured that the rated control circuit voltage Us of the starter is compatible with the available power supply. Rated control circuit voltage includes AC 50/60Hz, 24V, 42V, 110V, 220/230V, 240V,
380/400V, 415V, 440V, 480V, 6OOV. Wrong voltage connection can damage the product and cause electrical accidents.
The operating frequency of the thermal relay is 30 times/hour, a characteristic that must be taken into account when operating heavy continuous machinery. The range of starters with thermal (overload) relays have thermal relay operating characteristics which need to be taken into account when using the product.
in conclusion:
In summary, AC contactors are essential industrial components that help to effectively control electrical circuits and keep them safe. It is necessary to understand their structural characteristics and precautions for proper installation and use. The use of protective, thermal (overload) relays and the consideration of technical performance indicators will ensure the high efficiency and safety performance of AC contactors in industrial machinery.
Post time: May-09-2023
