The Schneider Electric CR1F265GZ7 is a 3-pole bistable magnetic contactor from the TeSys F range, rated for switching motor loads up to 265 A in AC-3 duty at 440 V. The "bistable" (latching) design means the coil only draws power to change state — 500 W DC for latching, 40 W DC for unlatching — and then holds the contacts magnetically without continuous coil power. This makes it a fit for applications where sustained coil heating is undesirable or where a momentary control pulse is preferred, such as in remote or UPS-backed panels.
The headline rating is 265 A in AC-3 (motor switching) at 440 V, but note the part also carries a 350 A rating in AC-1 (resistive) at 40 °C. The AC-3 figure governs motor starting duty; the AC-1 figure governs resistive or lightly inductive loads. Breaking capacity is specified across several voltages: 2450 A at 220…440 V, 2200 A at 500 V, 1700 A at 600…690 V, and 800 A at 1000 V. The control circuit is designed for 127 V DC, with a latching voltage range of 0.85…1.1 Uc and unlatching range of 0.85…1.1 Uc. The coil is low-consumption type, drawing 500 W during the latching pulse and 40 W during the unlatching pulse. This is not a continuous-duty coil; the power is only drawn during the state transition. Mechanical durability is rated at 1,000,000 cycles. Operating time is 45…50 ms for latching and 50…100 ms for unlatching. Power dissipation per pole is 22 W in AC-3 and 39 W in AC-1. This matters for enclosure thermal management — at full AC-1 load, three poles dissipate 117 W, which must be considered in the panel heat budget. Associated fuse ratings for the power circuit are 315 A aM, 400 A BS88, or 400 A gG — these are the maximum recommended fuse sizes for short-circuit protection. The rated insulation voltage (Ui) for the control circuit is 1000 V conforming to IEC 60947-4 and other standards.
The bistable coil suits applications where a sustained control signal is not available or where minimizing coil power consumption is a priority. The TH protective treatment indicates suitability for tropical/humid environments. Operating altitude is 3000 m without derating, and ambient temperature range is -15…70 °C.