DRC3P48B400R2

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Solid state contactors, also known as “SSC”, are electromechanical components used to control current and voltage in electrical systems. The DRC3P48B400R2 consists of a combined zero voltage turn-off (ZVT) switch and zero current turn-off (ZCT) switch. The two switches are connected in series by the neutral (common) conductor. This contactor is designed to be operated with up to 48 VAC or 440 VAC supply power, and is suitable for switching up to 400 A of current.

The primary application field of the DRC3P48B400R2 solid state contactor is three phase motor control. It can be used to control the on/off state, as well as to switch between forward and reverse rotation. This contactor is especially suitable for applications that require high speed and accurate control, such as in Automatic Guided Vehicles (AGV).The DRC3P48B400R2 is also suitable for AC power switching applications, such as lamp dimming, AC motor speed control, heater temperature control, solenoid control, and on/off timer control. It is also suitable for high power current control, such as welder current control, welding current switching, and electric furnace current control.

The working principle of this contactor is based on a zero voltage turn-off (ZVT) switch and a zero current turn-off (ZCT) switch. When the voltage across the contacts reaches zero, the ZVT switch opens, and when the current between the contacts reaches zero, the ZCT switch opens. This ensures a fast and precise control.

The ZVT switch in the DRC3P48B400R2 is also equipped with a failsafe area. This ensures that the switch will open in the event of an electrical fault, such as an overcurrent or overvoltage. This features makes the contactor particularly suitable for applications where safety is of utmost importance.

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