Siemens 3RT2016-1BJ81 — SIRIUS Power Contactor, Size S00, 72 V DC Coil
The Siemens 3RT2016-1BJ81 is a SIRIUS power contactor in Size S00, designed for switching motor loads and resistive loads in industrial control panels. It carries a 72 V DC coil with screw-type terminals and is rated for 10 A at 24 V DC and 1 hp at 230 V.
Mounting and Integration
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, occupying 45 mm width on the rail. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, giving flexibility in dense panels. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Overall dimensions are 58 mm height, 45 mm width, and 73 mm depth.
Ratings and Performance
DC switching ratings: 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 AC motor rating is 1 hp at 230 V. Maximum mechanical service life is 30,000,000 operations. Maximum switching frequency varies by duty: 1,000 cycles/hour for AC-1, 750 cycles/hour for AC-2, AC-3, and AC-3e, and 250 cycles/hour for AC-4. Operating time at DC is 7 to 13 ms, with arcing time of 10 to 15 ms. Pick-up voltage is 0.8 of rated value, drop-out is 1.1 of full-scale value.
Environmental and Wiring
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. Accepts solid or stranded conductors from 0.5 to 4 mm², with multiple conductor options: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². Includes an auxiliary switch. Main contact size range is 20 to 12.