Siemens SIRIUS 3RT1016-2BP41 — Power Contactor, Size S00
It carries a 230 V AC coil and uses spring-loaded terminals on the main circuit, which eliminates the need for periodic retorquing in high-vibration environments like conveyor lines or compressor skids.
Motor Duty and Switching Capacity
For motor applications, the 3RT1016-2BP41 is rated at 4.5 kW at 500 V and 5.5 kW at 690 V — typical for small-to-medium induction motors on 400/480 V or 690 V three-phase systems. AC-4 switching at 400 V is rated at 8.5 A, which governs plugging and inching applications where the contactor must interrupt stalled rotor currents. The AC-12 rating of 10 A covers resistive loads like heater banks or lighting. Auxiliary contact switching capacity is specified across the voltage range: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC — covering both AC and DC control circuits in the same contact block.
The magnet coil draws 3.3 W during both closing and holding, which simplifies transformer sizing in the control circuit — no inrush peak beyond the steady-state value. The pickup voltage threshold is 0.85 x rated (approx. 195.5 V AC), and the dropout is at 1.1 x rated (approx. 253 V AC), giving a clear operating window on a 230 V line with typical dips.
Wiring and Termination
Spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded conductors, or 2x (24 to 14 AWG). The 6 mm side clearance to adjacent devices is the minimum recommended for heat dissipation and tool access. Depth is 73 mm, height 60 mm — compact enough for shallow enclosures.
Protection and Coordination
For Type 1 coordination (contactor may be damaged but no hazard to personnel), the fuse rating is 35 A. Pollution degree 3 means the contactor is rated for conductive pollution environments typical of industrial floors.