Siemens SIRIUS 3RT2016-1QB42 — Coupling Contactor, Size S00
The Siemens SIRIUS 3RT2016-1QB42 is a size S00 coupling contactor with a 24 VDC coil rated at 10 A. It uses screw-type terminals for the magnet coil and main contacts, and mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The 45 mm width and 58 mm height fit standard panel layouts; depth is 117 mm. Operating temperature range is -25 to +60 °C, storage -55 to +80 °C. This is a coupling contactor — designed to switch control signals between different voltage systems or to isolate logic-level circuits from power circuits. The 24 VDC coil draws minimal inrush, and the 10 A rated current at 24 V handles typical PLC output loads or small solenoid valves. Switching frequency reaches 1000 cycles/hour at AC-1, 750 at AC-3, and 250 at AC-4 — match the duty cycle to your load type.
Mounting & Wiring
Mounts on 35 mm DIN rail with screw or snap-on fastening. Accepts solid or stranded wire: 0.5 to 4 mm² for single conductors, or 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² for dual terminations. Clearance: 10 mm upward, 10 mm forward, 10 mm downward, 6 mm at the side. Mounting position allows ±180° rotation on vertical surfaces and ±22.5° tilt forward/backward.