Fit & Application
The 3RB1246-1PB10: Rated for 1.25...6.3 A motor full-load current, this relay mounts individually in size S00 or S0 contactor footprints — common across Siemens SIRIUS 3RT2 contactor frames. The adjustable Class 5...30 trip curve lets you match the thermal protection to the motor start profile: Class 10 for standard starts, Class 20 for high-inertia loads, Class 30 for very heavy starts. The DC 24 V auxiliary circuit with screw terminals simplifies panel wiring, and the manual-auto-remote reset options give flexibility for unattended or supervised restart schemes.