The Schneider Electric CR1F6304FZ7 is a TeSys F magnetic latching contactor with 4 normally open power poles, rated for 630 A operational current in AC-4 duty at <= 440 V. It's a control device for resistive and motor loads, covering utilisation categories AC-1, AC-3, and AC-4. The 110 V DC low-consumption coil draws 620 W to latch and 45 W to unlatch, with operating times of 40...80 ms latching and 50...100 ms unlatching.
The 630 A rating at <= 440 V in AC-4 (frequent starting and plugging) is the heavy-duty number — it tells you this contactor handles the inrush and breaking of motor loads under severe switching conditions. The conventional free-air thermal current (Ith) is 1000 A at 40 °C, which is the resistive-load ceiling. For motor power, it's rated 450 kW at 690 V AC and 800 hp at 575...600 V AC (UL/CSA). The 110 V DC control circuit voltage has a latching and unlatching range of 0.85...1.1 Uc, so the coil holds reliably between 93.5 and 121 V DC. The rated insulation voltage is 1000 V per IEC 60947-4, with an impulse withstand of 8 kV.
This contactor is sized for heavy motor control in industrial panels — think large pumps, compressors, conveyors, or crushers in the 200–800 hp range. The TeSys F series is a standard for high-power switching in process industries like pulp and paper, mining, and water treatment. The 4-pole configuration with 4 NO contacts suits applications needing multiple power paths or a neutral switching pole.
Integration notes
The contactor measures 15.3 in wide by 12.0 in high by 10.04 in deep (389 x 304 x 255 mm). Power connections use two 60 x 5 mm bars per pole, torqued to 58 N.m. The associated fuse rating is 630 A aM at 1000 V or BS88/gG at <= 440 V. Mechanical durability is 1 million cycles; maximum operating rate is 120 cycles per hour at 40 °C. The protective treatment is TH (tropicalized) for humid environments.