The Siemens SIRIUS 3RU6916-3AA01 is a size S00 overload relay for individual stand-alone installation, with screw-type terminals on the main circuit. It mounts via screw or snap-on onto standard 35 mm DIN rail per DIN EN 60715, fitting into the same 45 mm wide footprint as the S00 contactor range.
Rated for continuous operation from -20 to +70 °C, with storage range from -50 to +80 °C. The operating temperature span covers most panel environments short of direct kiln-side exposure — the 70 °C ceiling is adequate for enclosed cabinets near hot processes, though derating at the upper end should be checked against the specific load current. At 75 mm deep, 45 mm wide, and 86 mm tall, it shares the S00 envelope. Screw terminals accept 0.5 to 2.5 mm² conductors (1x 20–12 AWG). The individual-mount design means it does not require a direct contactor interface — it can be wired as a standalone overload protection block in the motor circuit.