MCC56-08IO8B

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Thyristors - SCRs - Modules

MCC56-08IO8B module is a thyristor module specifically designed for rectifier applications in industrial and commercial applications, offering high circuit parameters, overload capacity and optimal cost ratio. These modules are suitable for converting AC power input into DC power output, either regular or smoothed DC, in order to supply loads with power. It contains one or more thyristors and connected in series, capable of handling high current demands, withstanding heavy loads, and reducing the voltage ripple factor.

In general, rectifier systems are built using diodes or thyristors to achieve the desired output characteristics. Diodes, for example, generate an output current proportional to the average value of the input current, often referred to as conduction angle control. Thyristors, on the other hand, are able to take advantage of pulse-width-modulation (PWM), often referred to as phase angle control. Both methods are used to meet different application requirements.

MCC56-08IO8B module includes two power thyristors in a half-bridge configuration, meaning that is able to switch both positive and negative AC voltages, and is equipped with an integrated temperature protection device which provides a safe operation. It is particularly suitable for soft-start applications, clamping on-off, cycle-on-off, PWM control, power factor correction or circuit braking.

The working principle of the MCC56-08IO8B module consists in connecting an AC source to its terminals A-C/D, and switching its output DC current between the terminals B-C/D, depending on the control signal applied to its gate. The commutation (on and off switching) of the thyristors is actively managed via the module\'s internal gate current sensing circuit, resulting in a very reliable operation.

Another important feature embedded in MCC56-08IO8B module is the guaranteed load current rating, meaning that if the load current exceeds the predefined current rating, it will trigger a self-protection mechanism that will terminate the current flow in the form of a short circuit.

The MCC56-08IO8B module is a powerful and versatile solution for AC power rectification applications and is suitable for industrial process automation, power supply for motor drive, uninterruptible power supply (UPS) systems, plasma power supplies, and many other applications where it is necessary to convert AC power into DC.

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