The Siemens 3RU6116-1AB0 is a SIRIUS thermal overload relay for motor protection in a 3-pole main circuit, with an adjustable current response from 1.1 A to 1.6 A and Trip Class CLASS 10. It mounts directly onto a size S00 contactor (like the 3RT1016 or 3RT1015 series), sharing the same screw-type terminal wiring for the main and auxiliary circuits, and accepts solid or stranded conductors up to 2.5 mm² per pole. Rated operational voltage is 690 V AC at 50–60 Hz, with a surge voltage resistance of 6 kV and insulation voltage of 690 V at pollution degree 3.
Fastening is via contactor mounting — no DIN rail required; it clips onto the S00 contactor's front face. Required spacing to grounded parts at the side is 6 mm. Dimensions: 45 mm wide, 76 mm tall, 70 mm deep. Tightening torque for the main screw terminals is 0.8 to 1.2 N·m.