SIEMENS 3VL9431-6SE30SIEMENS 3RB2056-1FC2

This SIEMENS 3RB2056-1FC2 is a SIRIUS 3RB series electronic overload relay with 50A to 200A adjustable range for three-phase motor protection. The electronic overload relay provides Class 10E overload protection and adjustable current threshold for different motor load requirements. The electronic overload relay supports both manual and automatic reset modes after protection tripping. The electronic overload relay adopts busbar connection for main circuit and screw terminals for auxiliary control wiring. The electronic overload relay can be mounted on matched S6 size contactor or installed independently inside low voltage panels.

This unit delivers thermal simulation protection to prevent motor damage caused by overloading. The motor overload protection unit continuously monitors three-phase load current and calculates motor thermal memory. The motor overload protection unit features built-in phase failure detection to avoid single-phase operation damage. The motor overload protection unit meets IEC standards and supports stable operation up to 690V AC industrial power systems. The motor overload protection unit is widely applied in pumps, fans, compressors and heavy duty industrial motor control cabinets.

It serves as a critical spare protection component for motor control cabinet maintenance and retrofit. The SIRIUS 3RB relay is manufactured to original SIEMENS factory specifications for direct replacement. The SIRIUS 3RB relay reduces motor failure risk and shortens equipment downtime during system overhaul work. The SIRIUS 3RB relay supports simple assembly and fast on-site parameter setup. The SIRIUS 3RB relay is stocked by global electrical automation spare parts suppliers.