The CR1F1854U7 is a TeSys F magnetic latching contactor — a 4-pole, 4 NO device rated for motor control and resistive loads. For AC-4 (inching/plugging) the same current applies at ≤ 440 V, but the thermal current (Ith) is 275 A, which governs the resistive load capacity. The 1000 V rated insulation voltage (Ui) per IEC 60947-4 sets the system voltage ceiling for the panel design. Motor power ratings span 55 kW at 220–230 V up to 110 kW at 690 V AC, and UL/CSA horsepower ratings go from 50 hp at 200–208 V to 150 hp at 575–600 V. The control circuit is 240 V AC 50/60 Hz, with latching and unlatching limits of 0.85 to 1.1 Uc. Average consumption is 1750 VA during latching and 11 VA during unlatching — the coil draw drops sharply once the magnet seals. Breaking capacity is rated at 1800 A at 220–440 V for the power circuit, and 600 A at 1000 V. The associated fuse rating is 200 A aM or 315 A gG at ≤ 440 V.
Mounts on a notched AM1-EC rail or directly to a panel. Dimensions are 7.1 in (181 mm) deep, 8.2 in (208.5 mm) wide, and 6.9 in (174 mm) high. Terminals accept bars (2 x 25 x 3 mm), ring lugs, or a 150 mm² connector. Tightening torque is 159.3 lbf·in (18 N·m). The TH protective treatment indicates tropicalisation for humid environments.
Compliant with JEM 1038, IEC 60947-4, VDE 0660, NF C 63-110, and BS 5424. The rated insulation voltage is 1000 V per IEC 60158-1, IEC 60947-4, and BS 775, and 1500 V per VDE 0110 group C. Altitude rating is 3000 m without derating.