Siemens 3RT2016-1BA41 — SIRIUS Size S00 Power Contactor
The coil is 24 VDC with screw-type terminals, and the main contacts are rated 20 to 12 A. The contactor includes an auxiliary switch, which is useful for feedback to a PLC or for sealing in the control circuit. Mechanical life is typical 30,000,000 operations, indicating a robust design for high-cycle applications.
Mounting and Integration
Mounts via screw or snap-on onto 35 mm standard mounting rail per DIN EN 60715. Dimensions are 73 mm depth, 45 mm width, and 58 mm height, fitting into compact panel layouts. Clearance requirements: 10 mm upwards, downwards, and forwards; 6 mm at the side. The mounting position allows +/-180° rotation on a vertical surface and can be tilted forward/backward by +/-22.5°. Wire sizes accepted: solid or stranded 0.5 to 4 mm², with dual-wire capability for 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². This covers common control wiring gauges without needing terminal adapters.
Switching Ratings and Duty Cycles
Switching capacity varies by voltage: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. The 230 V rating is expressed as 1 hp, confirming motor-starting capability for fractional-horsepower motors. Maximum operating frequency depends on duty: 1000 cycles/hour for AC-1 (resistive), 750 cycles/hour for AC-2, AC-3, and AC-3e (motor starting/running), and 250 cycles/hour for AC-4 (plugging/inching). Operating times: DC coil pick-up and drop-out between 7 and 13 ms, with arcing time of 10 to 15 ms. This is fast enough for most sequencing applications but should be verified against PLC scan cycle requirements in high-speed lines.