The devices of the F400 series are designed for higher low voltages with a higher protection class and are particularly used for the maintenance, testing, monitoring, and analysis of medium power systems. The F404 clamp is equipped with a fast, digital 12-bit TRMS acquisition system for high measurement accuracy regardless of the signal shape. Technical specifications: Enclosure diameter: 48 mm, current: 1000 A AC / 1500 A DC, voltage: up to 1200 VAC / 1700 VDC, resistance and acoustic continuity testing, temperature, automatic AC/DC detection, measurement of inrush currents, True Inrush, HOLD, MIN, MAX, relative (?X) difference measurements (?X/X), adapter function, 1000 V CAT IV / 1500 V CAT III, protection class: IP54.