DRA3P48E2R

Series:	DRA3P
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Circuit:	3PST-NO (3 Form A)
Output Type:	AC
On-State Resistance (Max):	--
Load Current:	2.4A
Voltage - Input:	18 ~ 28VDC
Voltage - Load:	48 ~ 510 V
Mounting Type:	DIN Rail
Termination Style:	Screw Terminal
Package / Case:	Module
Supplier Device Package:	--
Relay Type:	Contactor

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Introduction

Contactors are a class of devices that are used to switch electric power. Solid State Contactors (SSCs) are relays that are operated by semiconductors instead of electric current. The DRA3P48E2R is a three-phase solid-state power contactor developed and manufactured by Siemens. This device is designed to switch circuit supplying rated AC voltages of up to 600V, frequencies up to 65 Hz. The following article analyses the application field, advantages, and working principle of DRA3P48E2R contactor.

Application Field

The DRA3P48E2R is most suitable for small or medium-sized machines, such as manufacturing equipment, vending machines, and other semi-automated systems. It can be used to switch current from power sources in numerous industries, such as electric power generation, automotive, marine, construction, and service.

Advantages

The DRA3P48E2R attaches great importance to the safety and reliability of the equipment. It provides superior protection against heat, rust, and other forms of mechanical damage. Compared to conventional contactors, this device has several advantages, such as fast switching, high reliability, low energy consumption, and easy installation. The power contactor is also much more efficient than a traditional electromechanical relay. It requires less energy to switch the device on and off, making it a cost-effective alternative. Additionally, it requires very little maintenance and can be used for continuous operation.

Working Principle

The DRA3P48E2R contactor is equipped with a semiconductor switching element which is triggered by an external signal. When the signal is applied, the semiconductor switching element is activated, closing the contacts and allowing current to flow. To deactivate the relay, the signal is removed, causing the contacts to open and stop the flow of current.The current relay also has a tripping system used to provide overload protection. When a predetermined current threshold is exceeded, the system will automatically disconnect the circuit by opening the contacts. This ensures the safety of the equipment and prevents potential damage caused by overheating.

Conclusion

The DRA3P48E2R is a three-phase solid-state power contactor that is designed for the reliable switching of circuits supplying AC voltages up to 600 V and frequencies up to 65 Hz. This device has several advantages over conventional contactors, such as fast switching, high reliability, low energy consumption, and easy installation. The working principle of the device is based on a semiconductor switching element that is triggered by an external signal. The contactor is also equipped with a tripping system that provides overload protection to prevent potential damage caused by overheating.

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