It carries four instantaneous normally-open contacts — no delayed, leading, or lagging switching — so every contact closes and opens together with the coil.
Each contact is rated for 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. These are thermal current ratings for the contact block itself; the actual switching capacity depends on the load type and coil voltage. The 10 A at 24 V figure tells you the contacts can handle the inrush of a small contactor or relay coil without welding. At 690 V, the 1 A rating is typical for isolating a lightly loaded control transformer secondary. The contacts are rated for 6 kV surge voltage withstand (impulse), which matches the insulation coordination for pollution degree 3 environments — common in industrial panels where conductive dust or humidity may be present.
Mechanical life and reliability
The typical mechanical life is 30 million switching operations. Contact reliability is specified as one incorrect switching operation per 100 million at 17 V, 1 mA — meaning the contacts are reliable down to low-level signals, not just power circuits. Shock resistance is 10g for 5 ms and 5g for 10 ms, so it holds its state under moderate vibration on a conveyor or pump panel.
The 3RH1140-2AG60 is 45 mm wide, 60 mm tall, and 73 mm deep — a standard S00 footprint that fits alongside other SIRIUS components on a DIN rail. An auxiliary switch extension (product extension auxiliary switch = Yes) can be added on top if more contacts are needed later.