The Schneider TeSys F CR1F2654EZ7 is a magnetic latching contactor — 4 poles, all normally open (4 NO), rated for 265 A at 440 V AC in AC-3 duty, with a 48 V DC latching coil. The latching coil holds the contacts closed without continuous power draw — it pulses to latch (500 W) and pulses again to unlatch (40 W), then sits there drawing nothing.
The utilisation categories tell you what loads it's certified for: AC-1 (resistive, 350 A at 40 °C), AC-3 (squirrel-cage motors, 265 A), and AC-4 (plugging/inching, 245 A). So if you're switching a resistive heater bank, you can push it to 350 A; for a conveyor motor, stay at or under 265 A. Control voltage limits are 0.85 to 1.1 times the 48 V DC nominal for both latching and unlatching. Operating time is 40 to 75 ms to latch, 50 to 100 ms to unlatch, with a maximum rate of 120 cycles/hour at 40 °C. The 1 Mcycle mechanical durability is the expected life before mechanical wear — not electrical life under load, which will be lower depending on switching frequency and current. For a contactor this size (265 A frame), 1 million cycles is typical for the class; in a pump-start application cycling a few times an hour, that's decades of service.
This is a panel-mount contactor — no DIN rail clip on this frame size. It bolts in with four M8 or equivalent hardware, torqued to 35 N·m (309.8 lbf·in) on the main power connections. The terminals accept lugs or ring terminals up to 240 mm² (0.4 in²), or bars up to 2 × 32 × 4 mm. That's a serious cable — 240 mm² is roughly 500 MCM — so plan for a gland plate or cable entry that accommodates that bend radius. Depth is 213 mm (8.4 in), width 244.5 mm (9.6 in), height 203 mm (8.0 in). Make sure the enclosure depth clears the cable exit. Associated fuse recommendation is 315 A aM or 400 A gG at 440 V.