Siemens SIRIUS 3RT2016-2LJ82-0LA0 — DC Contactor with Spring-Terminal Coil
It's built for DC switching up to 72 V rated value, with a 10 A continuous rating at 24 V DC. The 45 mm width and 121 mm depth mean it fits the standard S00 footprint on a 35 mm DIN rail per DIN EN 60715, with screw and snap-on mounting. Coil hold-in is solid at 24 V nominal; the spring terminals accept 2x (0.5 to 1.5 mm²) solid or stranded, 2x (0.75 to 2.5 mm²), or 2x 4 mm² — no tools needed for the coil connection, which saves time on the rail.
The DC-1 ratings tell you the contactor's capability for resistive DC loads at various voltage levels. At 24 V rated value it carries 10 A; at 48 V and 60 V it drops to 2 A; at 110 V it's 1 A; at 125 V it's 0.9 A; at 220 V it's 0.3 A; at 400 V it's 3 A; at 480 V it's 7.6 A; at 500 V it's 2 A; at 600 V it's 9 A; at 690 V it's 1 A. The 7 to 20 ms arcing time and 10 to 15 ms arcing time are typical for DC interruption — the arc extinguishes faster at lower currents. For motor loads (AC-3/AC-4), the maximum switching rate at AC-4 is 250 operations per hour, which is fine for intermittent duty like a small conveyor or pump.