S00 auxiliary contactor, 4 NO, DIN rail
The 3RH2140-1AT60: This is the contactor that mirrors the main contactor's coil signal to the control logic — four independent NO circuits, each rated for the full switching capacity of the S00 platform. The 6 kV rated surge voltage resistance (per IEC 60947-1) means this contactor handles the transient spikes common in industrial control panels fed by long cable runs.
Switching performance and endurance
At DC-12 load, maximum operating frequency is 1,000 operations per hour. The relative humidity floor is 10%. The product extension auxiliary switch option (yes) means this base unit accepts additional front-mounted switch blocks if the four built-in NO contacts aren't enough.
RoHS compliance date (substance prohibition) is 10/01/2009 — the part meets the EU RoHS directive effective from that date.