DRA3P48E4

Contactors (Solid State) refers to contactors, relays and switches that have no moving parts. The DRA3P48E4 is a type of contactor that is used to control the flow of electricity onto a circuit. It is a single-phase, three-pole device and has a maximum current load of 48 amperes and maximum voltage of 400 VAC.

The DRA3P48E4 is typically used in applications where the electricity needs to be switched on and off quickly, such as electric motors. It can also be used in circuits where the load is under 48 amperes, such as home appliances and industrial machinery. The device is very reliable and easy to install, making it a popular choice for industrial and commercial applications.

The DRA3P48E4 works on the principle of ACS (Alternating Current Sensing). This technology enables a secure switching between two power sources, such as a power grid and a battery. The device senses the alternating current between these two sources and switches the current when the voltage or current reaches a certain predetermined level.

The device has two modes of operation, including Latched and Unlatched mode. In Latched mode, once the load is applied, the device stays in that condition until the voltage is reduced sufficiently to switch off. This mode allows for quick on/off switching which makes it ideal for controlling electric motors. In Unlatched mode, the device switches off automatically when the load is reduced. This mode is ideal for controlling circuits where the switching need not be frequent.

Safety is one of the key features of the DRA3P48E4. It is equipped with reverse-polarity protection, which means that it will not switch on if the circuit setup is reversed. It also has a current protection feature which prevents it from overloading due to excessive current, thus protecting the circuit from damage.

The DRA3P48E4 also has an LED indicator which can make the status of the device visible. The LED light goes on when the device is switched on and off when it is switched off. This feature helps in troubleshooting because the LED light can be used to determine whether or not the device is working properly.

The DRA3P48E4 is a reliable and convenient device for controlling the flow of electricity in circuits that need to be switched on and off quickly and accurately. It has a wide range of applications from home appliances to industrial motors and is easy to install and operate. Furthermore, its safety features protect the connected circuits from potential damage due to overflow or reverse flow of current.