The AT412-21 with Module from BSR CONTROLS is a Thyristor Trigger Module, designed for Through Hole Mounting (THT). It is the EZYTrigger™ model, featuring a 12mA current capability and a voltage rating of 2.1kV. The device is suitable for medium voltage applications, and offers reliable, fast switching. It is compatible with many models of thyristors, including AC and RC types. The device also features short circuit protection, an adjustable triggering current allowance, and integrated thermal protection. It is UL, CUL, VDE, and CCC approved for safety.