The Siemens SIRIUS 3UF7150-1AA00-0 is a decoupling module that sits upstream of the current/voltage measuring module at the system interface, specifically for ungrounded supply systems. It prevents circulating ground currents from interfering with the measurement. Mounts via screw or snap-on to a DIN rail, taking up 22.5 mm of width with a depth of 124 mm — standard for SIRIUS peripheral modules.
Sourced to order against an RFQ — typical lead time aligns with standard SIRIUS accessory availability. IP20 rated, mountable in any orientation, and rated for operating temperatures from -25 °C to +60 °C.