To ease installation the DIN rail mounted SAG204 unit contains a group of four interconnected AG current sensors. As each galvanic isolated AG-sensor is potential-free the SAG204 can freely be installed in up to four separate battery or DC supply systems having a common protective earth, at any voltage from 12 to 60VDC. The group of 4 sensors are pre-wired for easy connection to ISOPAK2xx. Each SAG204 unit receive a sensor excitation signal from the common Sensor Controller MML204. SAG404 is for connection of up to 4 of the IGT60A (60mm) sensor.