ABB EHDB130 Contactor Motor Control

ABB EHDB130 is a contactor motor controller, mainly used for motor control and protection. The following is its related introduction:

Functional features

Basic control function: The electromagnetic mechanism controls the closing and opening of the contacts to realize basic control operations such as starting, stopping, forward and reverse rotation of the motor. For example, on an industrial production line, it can control the operation and stop of the conveyor belt motor, or control the forward and reverse rotation of the mixer motor to achieve different mixing actions.

Protection function: It usually has functions such as overload protection, short circuit protection, and undervoltage protection. When the motor is overloaded, short-circuited, or the power supply voltage is too low, it can automatically cut off the circuit to protect the motor and other equipment from damage. Taking overload protection as an example, when the motor load exceeds the rated value for a certain period of time, EHDB130 will detect the current abnormality and trigger the protection mechanism, disconnect the motor circuit, and prevent the motor from burning due to overheating.

Various control methods: Supports multiple control methods, such as manual control, remote control, automatic control, etc. It can be manually operated through local devices such as buttons and switches, and can also receive signals from control systems such as PLC and DCS to achieve remote control or automatic control. For example, in an automated factory, the PLC can remotely control the EHDB130 to start or stop the motor according to the needs of the production process.

Technical parameters

Rated current: 130A, which means the maximum current value that the contactor can withstand when working stably for a long time, which determines the power of the motor it can control. Generally speaking, it can be used to control three-phase AC motors below tens of kilowatts.

Rated voltage: Common specifications include 380V, 400V, 415V, etc., which can adapt to different power supply systems. For example, in my country's industrial electricity, 380V is a more commonly used voltage level. EHDB130 can work normally under this voltage and provide stable control for the motor.

Coil voltage: There are many options such as 24V, 110V, 220V, 380V, etc. Users can choose according to the voltage requirements of the actual control circuit. For example, if the control circuit uses a 24V DC power supply, you need to choose an EHDB130 with a coil voltage of 24V to ensure that the contactor is compatible with the control circuit.

Application fields

Industrial field: widely used in various industrial equipment, such as fans, water pumps, compressors, machine tools and other motor control. In the production workshops of chemical, metallurgical, machinery manufacturing and other industries, a large number of motors need to be controlled and protected by contactors. EHDB130 can meet the reliable operation requirements of these motors.

Commercial field: can be used for the control of motors such as air-conditioning systems, elevators, ventilation equipment, etc. in commercial buildings. For example, in the central air-conditioning system of a shopping mall, multiple fans and water pump motors can be centrally controlled and protected by EHDB130 to ensure the stable operation of the air-conditioning system.

Other fields: in some small power stations, distribution rooms and other places, it can also be used to control various auxiliary motors, such as cooling water pumps, ventilators, etc., to ensure the normal operation environment of power equipment.