HT4004P is a standard transducer clamp to measure DC current with scales 10-100A / 1V in electrical installations. The model is intended to clamp cables with maximum diameter of 32mm, finding their application along with the MPP300 accessory dedicated to the interconnections for photovoltaic systems multistrings. The transducer HT4004P no need for external battery power as it is fed only through MPP300. Manufactured in accordance with the safety requirements of IEC / EN61010-1 and overvoltage category CAT III 300V to ground.