Auxiliary contact ratings — what the voltage columns tell you
The 3RT2326-1AP00-4AA0: The auxiliary switch block is rated for AC coil voltage at 50 Hz, 230 V rated value — the operating power draw at 50 Hz is 0.25, which is the VA figure for sizing the control transformer. DC switching ratings are more restrictive: at 48 V rated value the contacts handle 2 A, at 125 V rated value only 0.3 A — if you are switching DC solenoids or brake coils at 125 VDC, the 0.3 A ceiling limits the coil inrush you can break without contact welding.
Temperature envelope and mechanical endurance
The main contact rating is listed as 16 to 8 — this is the AC-3 utilization category current range in amperes at 400 V, meaning the contactor is sized for motor loads in the 8 to 16 A full-load current band at 400 VAC.
Sourcing and lifecycle — current production, quoted to order
Availability is confirmed at quote time against the BOM quantity; the part is sourced through authorized distribution channels and quoted to order.