The Schneider Electric TeSys F CR1F185N7 is a 3-pole magnetic contactor with a bistable (latching) coil. Its rated operational current is 185 A in AC-3 utilisation category at 440 V, and 275 A in AC-1 at 40 °C.
Coil and switching characteristics
Bistable design means the coil draws 1600 VA during latching, then drops to 8 VA holding (unlatching) — the power is only needed to change state, not to maintain it. Operating time is 35 to 40 ms for closing, 50 to 100 ms for opening.
Duty and thermal ratings
Rated for AC-3 (motor switching) and AC-1 (resistive) duty. Power dissipation per pole is 12 W in AC-3 and 26 W in AC-1. The conventional free-air thermal current (Ith) is 275 A at 40 °C. Mechanical durability is rated at 1,000,000 cycles, with a maximum operating rate of 120 cycles per minute at 40 °C. Fuse protection for the power circuit can use 200 A aM, 315 A gG, or 315 A BS88 types.
Environmental and installation
The contactor is TH-treated for tropical environments. Dimensions are 305 mm height, 168.5 mm width, and 181 mm depth. Operating position tolerance is ±5°.