The CR1F400G7 is a 3-pole bistable magnetic contactor from the Schneider TeSys F range, rated for AC-3 duty at 400 A at 440 V and AC-1 duty at up to 500 A at <40 °C. The conventional free-air thermal current Ith is 500 A at 40 °C for the power circuit. Control voltage is 127 V, accepted as both AC 50/60 Hz, AC 400 Hz, and DC. The utilisation categories AC-3 and AC-1 mean this contactor is specified for switching squirrel-cage motors (AC-3) and resistive or slightly inductive loads (AC-1). The power dissipation per pole is 45 W under AC-3 and 70 W under AC-1, which informs panel thermal management. Rated operational voltage for the power circuit is 1000 V AC and 1000 V DC. Rated insulation voltage Ui is 1000 V conforming to IEC 60947-4 and BS 775, with 1500 V per VDE 0110 group C for the control circuit.
For a BOM line requiring the CR1F400G7, sourcing will be through the surplus and broker market.
Electrical and switching characteristics
The rated breaking capacity reaches 4000 A at 220...440 V for the power circuit, and 1200 A at 1000 V. The rated making capacity Irms is 4500 A. These figures confirm the contactor can interrupt fault currents within its rated voltage range without welding. Associated fuse ratings are 400 A aM, 500 A BS88, and 500 A gG for the power circuit, providing coordination guidance for upstream short-circuit protection. Operating time is 40...75 ms for latching and 50...100 ms for unlatching. The maximum operating rate is 120 cycles per minute at 40 °C. Mechanical durability is rated at 1,000,000 cycles. Average consumption is 12 VA AC 50/60 Hz unlatching and 1450 VA AC 50/60 Hz latching; DC consumption is 16 W unlatching and 1600 W latching. Average impedance of the control circuit is 0.28 Ohm at Ith 500 A 50 Hz.
Physical and environmental specifications
Dimensions are 375 mm height, 261 mm width, and 219 mm depth. The part is supplied as a set of 10. Ambient air temperature for operation is -15 to 70 °C. Protective treatment is TH (tropicalised).