The 3RT2016-1BB41-1AA0-ZW96: The AC-3 duty rating means it handles inrush during motor start without welding the main contacts — the 9 A continuous rating is the thermal current after the motor is up to speed, not the locked-rotor surge. The single NO auxiliary contact on the front gives a feedback signal to the PLC or a seal-in circuit without adding a side-mount block.
Size S00 — DIN rail fit and screw terminal wiring
The upright mounting position is the standard orientation; horizontal mounting derates the thermal current and is not recommended for full-load motor duty. Screw terminals accept up to 4 mm² stranded wire. For a 4 kW motor at 400 V, 1.5 mm² is typical — the terminals allow a solid ring or bootlace ferrule, and the clamping torque is 1.2 Nm per the Siemens terminal spec.
Current production — no lifecycle concern
The pack quantity of 72 units matches a full master carton — useful for project builds or annual maintenance contracts where a single order covers multiple panels.