Siemens 3RU2126-4BB0 Overload Relay Size S0 600V Range 14-20 Amp

Siemens 3RU2126‑4BB0 is a SIRIUS series thermal overload relay designed for dependable motor protection against overload and phase failure. It is intended for direct mounting to Siemens S0 size contactors and features Class 10 tripping behavior, adjustable current range, and flexible manual or automatic reset for industrial motor control applications. Technical Specifications: Manufacturer: Siemens AG Manufacturer Part Number: 3RU2126‑4BB0 Product Family: SIRIUS Product Type: Thermal overload relay Relay Size: S0 Current Adjustment Range: 14–20 A Rated Operational Voltage: Up to 600 V AC Trip Class: Class 10 Phase Configuration: Three‑phase motor protection Protection Function: Thermal overload and phase failure protection Reset Type: Selectable manual or automatic reset Reset Method: Front reset button Auxiliary Contacts: 1 NO + 1 NC Auxiliary Circuit Connection Type: Screw terminals Main Circuit Connection Type: Screw terminals Mounting Method: Contactor mounting or standalone mounting Compatibility: Siemens S0 size contactors Frequency Rating: 50 / 60 Hz Indication: Trip indicator and test function Standards Compliance: IEC 60947‑4‑1, UL, CSA Application Type: Motor protection in industrial control panels Housing Material: Industrial thermoplastic Color: Gray Condition: New with original packaging Manufacturing Country: Germany Please review pictures carefully and let us know if you have any questions!