SIRIUS S0 Contactor, 72 V DC Coil
The Siemens 3RT2024-4XJ40-0LA2 is a SIRIUS Size S0 contactor with a 72 V DC coil, designed for screw and snap-on mounting onto a 35 mm standard mounting rail per DIN EN 60715. It includes an auxiliary switch and uses a ring cable lug connection for the magnet coil. Rated operational currents for the main contacts vary by voltage: 10 A at 24 V DC, 2 A at 48 V DC, 2 A at 60 V DC, 1 A at 110 V DC, 0.9 A at 125 V DC, 0.3 A at 220 V DC, 3 A at 400 V AC, 11 A at 480 V AC, 2 A at 500 V AC, and 11 A at 600 V AC. A 2 hp rating is listed at 230 V. Maximum switching frequency is 1,000 1/h for AC-1, AC-2, AC-3, and AC-3e duty, and 300 1/h for AC-4.
This covers most industrial enclosure environments without forced cooling.