Allen-Bradley 410403-79AZ

The 410403-79AZ thyristor is a vital component for PowerEx control applications within the Reliance Electric Spare Parts series. Engineered for industrial environments, this robust, metal-capped unit is installed on a phase rectifier module, offering a voltage rating of 1200 Volts and a current capacity of 670 Amps. Functioning as both an open-circuit switch and rectifying diode, it excels in a variety of applications, from controlling power supplies to managing light dimmers. The sophisticated silicon-controlled rectifier employs a four-layer design using N-type and P-type materials, featuring three terminals—the anode, cathode, and gate—allowing efficient conversion of AC power to DC power. With the capability to operate in reverse blocking, forward blocking, and forward conducting modes, this device is essential for maintaining safe operating conditions and preventing power interruptions in high-current and voltage scenarios.