It is designed for control applications handling resistive loads and motor control under utilisation categories AC-1, AC-3, and AC-4. The 265 A rated operational current at ≤440 V under AC-4 duty is the headline rating that governs motor switching with frequent starts and stops — the AC-4 category covers plugging and inching, the most demanding switching condition for a contactor. For resistive loads (AC-1) the thermal current Ith is 350 A at 50 Hz. Motor power ratings span 75 kW at 220-230 V AC up to 160 kW at 690 V AC 50/60 Hz, and UL/CSA horsepower ratings are provided for 200-600 V three-phase motors, making the part specifiable across IEC and NEMA design traditions.
Mounts to a panel or snaps onto an AM1-EC notched DIN rail. Dimensions are 8.4 in (213 mm) depth, 9.6 in (244.5 mm) width, 8.0 in (203 mm) height. Power connections accept lugs, ring terminals, or bars up to 240 mm² per pole. Tightening torque is 35 N·m (309.8 lbf·in). The operating coil draws 1800 VA during latching and 12 VA during unlatching at 48 V AC 50-400 Hz or DC — the holding power is low, but the inrush for the latch coil must be considered in control transformer sizing.
For compliance documentation: the part carries standards certifications to IEC 60947-4, VDE 0660, BS 5424, JEM 1038, and NF C 63-110. The protective treatment is TH (tropicalized) for humid environments. Operating temperature range is -15 to 70 °C.
Breaking capacity and protection coordination
Rated breaking capacity is 2450 A at 220-440 V, 2200 A at 500 V, 1700 A at 660/690 V, and 800 A at 1000 V for the power circuit. The rated making capacity is 2940 A. Associated fuse ratings are 315 A aM or 400 A gG at ≤440 V, or 400 A BS88 — these define the upstream short-circuit protection limits for coordination. Mechanical durability is 1 million cycles. Maximum operating rate is 120 cycles per hour at 40 °C.