This MicroLogic 4.3 is a 3-pin 3d electronic tripping unit used in Compact NSX 400/630 circuit breakers. This electronic trigger with a rated power of 400 A is the best choice for all standard and special applications. It has an adjustable long-term protection against overload. It also offers an adjustable short-term protection and a fixed instantaneous short-circuit protection. The trigger device MicroLogic 4.3 Vigi offers an integrated, adjustable differential current protection. MicroLogic 4.3 indicates overloads with alarm LEDs. The green Ready LED flashes when the circuit breaker is ready to trip. A differential current pre-alarm can be available remotely by installing the optional SDX module (LV429532). This product is part of our EcoStruxure Power architecture, provided it is combined with the PowerTag NSX and Compact NSX Basic Switch.This text is machine translated.