Siemens 3RB2056-1FC2 Motor Protection Relay Module

Siemens 3RB2056-1FC2 is a solid‑state overload relay for motor protection with a 50 to 200 A current range, sized for Siemens S6 equipment and classified as Class 10. It is designed for mounting on Siemens Sirius size S6 contactors or for standalone installation, featuring a main circuit that connects via busbar and an auxiliary circuit wired through screw terminals. The unit supports manual‑automatic reset, enabling fault clear and reset control, and includes one normally open and one normally closed auxiliary contact for signaling and interlock purposes in motor‑control circuits. As part of the 3RB overload relay family, this device protects three‑phase motors on low‑voltage systems and is commonly integrated into panel‑mount motor starters or control centers alongside compatible Siemens protection and control devices to ensure reliable overload protection with straightforward reset after faults.