The Schneider Electric CR1F150G7 is a TeSys F series 3-pole bistable magnetic contactor rated for 150 A in AC-3 duty at 440 V, with a 127 V AC/DC control coil. Bistable means the contactor latches and holds position without continuous coil power — the coil draws 1100 VA during the 35–40 ms latching pulse, then drops to near-zero holding current. Unlatching draws 10 VA DC over 50–100 ms. This makes it suited for applications where sustained coil power is undesirable or where a power-loss state must be maintained. Utilisation categories cover AC-1 (resistive loads) and AC-3 (squirrel-cage motors).
Rated breaking capacity reaches 1100 A at 600–690 V for the power circuit, and the making capacity (Irms) is 1700 A. The associated fuse recommendation is 160 A aM or 250 A gG/gG-type for the power circuit. Mechanical durability is rated at 1,000,000 cycles, with a maximum operating rate of 120 cycles per minute at 40 °C. Power dissipation per pole runs 18 W in AC-1 and 6 W in AC-3 — relevant for enclosure thermal calculations if the contactor is cycled heavily. The control circuit is rated for 127 V AC (50/60 Hz or 400 Hz) and 127 V DC, with voltage limits of 0.85 to 1.1 Uc for both latching and unlatching. Rated insulation voltage for the control circuit is 1000 V per IEC 60947-4 and BS 775. The contactor is supplied as a set of 10, with dimensions of 301 mm height, 163.5 mm width, and 171 mm depth.