
Siemens 3RB2153-4FX2 SIRIUS 3RB electronic overload relays. Siemens 3RB2153-4FX2 is the exact printed commercial reference for an electronic overload relay in the SIRIUS 3RB Overload Relays range. Siemens' official product description is: Overload relay 50...200 A for motor protection Size S6, CLASS 5...30E Contactor mounting/stand-alone installation Main circuit: straight-through transformer Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset Internal ground fault detection.
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