What the 2600 A AC-1 rating means for fit
The Schneider Electric LC1F2600W7 is a 3-pole contactor from the TeSys F range, rated 2600 A in AC-1 utilisation category — that is the resistive-load current it can make and break continuously at up to 60 °C ambient. AC-1 covers heaters, ovens, and non-inductive loads; for motor duty (AC-3) this contactor is not the right fit. The 277 V AC control coil operates across 40-400 Hz, with a hold-in draw of 45 VA and an inrush of 2500 VA. Plate-mounted, it occupies 519 mm width by 382 mm height by 251 mm depth — sized for a large panel or enclosure backplate.
Rated insulation voltage 1000 V, impulse withstand 8 kV, overvoltage category III. Complies with EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1. The front face with shrouds achieves IP20 per IEC 60529 and VDE 0106. Protective treatment TH is applied for tropical environments.
Mounts on a plate (not DIN rail). Power circuit connections use bars accepting up to 3 cables with a busbar cross-section of 100 x 10 mm. Control circuit terminals are screw clamp, accepting 1 to 4 mm² flexible or solid wire. Tightening torque: 1.2 N·m for control, 58 N·m for power. The 251 mm depth must be accounted for in enclosure depth planning, especially with cable bending radius behind the contactor.
Short-circuit and withstand coordination
Associated fuse rating is 2500 A gG at ≤ 440 V. Rated short-time withstand current (Icw) is 12,000 A for 10 s, 9000 A for 30 s, 7000 A for 1 min, 6000 A for 3 min, and 4000 A for 10 min — all at 40 °C. Rated breaking capacity is 3900 A per IEC 60947-4-1. These figures guide the upstream protection device selection.