The 3RH2353-1CN20-0KA0 is a SIRIUS auxiliary contactor with five normally open instantaneous contacts. Its rated operational current at 24 V is 10 A — this is the continuous current each contact can carry in a 24 VDC control circuit. The switching capacity follows the voltage: higher voltage means lower allowable current for the same contact gap. Mechanical endurance is 10,000,000 operating cycles typical — this is the contactor's service life before mechanical wear, not the electrical life under load. Electrical life depends on the switched current and voltage; for pilot-duty control circuits (relays, PLC inputs, contactor coils), the electrical life typically approaches the mechanical figure.
Panel fit: S00 frame, 45 mm wide, screw and snap-on DIN rail
The contactor is size S00 — the smallest SIRIUS frame. These are the minimum air gaps to adjacent metal parts or other devices — essential for heat dissipation and arc flash containment. Pollution degree 3 means the contactor is rated for conductive pollution (condensation, light dust) typical in industrial control panels.
Operating environment: temperature, humidity, and voltage tolerance
The minimum relative humidity is 10 % — no upper bound stated, but the pollution degree 3 rating implies tolerance to condensation. Substance prohibitance date is 07/01/2006 — this is the RoHS compliance effective date for the European directive. The contactor is designed to meet RoHS requirements from that date onward. No UL, CSA, or IEC certification numbers are listed in the spec record, but the SIRIUS series is typically certified to IEC 60947-5-1 for control circuit devices.