Siemens 3RB2015-1PB0 Motor Protection Circuit Breaker

Siemens 3RB2015-1PB0 is a motor protection overload relay from the SIRIUS 3RB family, designed to accompany a motor starter to protect small- to mid-size motors in industrial automation. It offers adjustable overload protection with a current setting range of 1 to 4 A and is rated Class 10 for thermal protection within the S00 frame size. The device includes a manual reset and provides screw-terminal connections for both the main circuit and the auxiliary circuit, making it straightforward to integrate into starter assemblies. When paired with a compatible Siemens motor starter, the 3RB2015-1PB0 helps prevent motor damage from overloads and supports reliable operation in applications such as pumps, fans, conveyors, and other automated machinery.