It carries a rated operational current of 125 A in AC-1 utilisation category at ≤440 V, with a 220 VAC 50 Hz wide-range control coil. The contactor is configured with 4 normally-open main poles and no auxiliary contacts, so any auxiliary switching needs must be handled externally. Mounting is flexible: DIN rail or plate mount. The IP20 finger-safe enclosure suits panel-mount installation but doesn't tolerate washdown.
The headline 125 A AC-1 rating is the resistive load current at ≤55 °C and ≤440 V. That's the figure that governs the BOM line for heater banks, lighting, or other non-inductive loads. For motor duty (AC-3), this contactor isn't rated here — the Easy TeSys range has other variants for that. The 125 A AC-1 rating also sets the fuse coordination: a 160 A gG fuse at ≤690 V, type 1 coordination, is the recommended upstream protection. The 220 VAC 50 Hz coil is a wide-range design: pick-up is guaranteed between 0.7 and 1.25 Uc (154 to 275 VAC), drop-out between 0.3 and 0.6 Uc (66 to 132 VAC), across -5 to 55 °C. Inrush at 50 Hz is 200 VA at cos φ 0.75, so the control transformer needs to handle that surge. Heat dissipation from the control circuit runs 6 to 10 W, which adds up in a densely packed panel. Mechanical durability is 3 million cycles; electrical durability for AC-1 is 350,000 cycles. The maximum operating rate is 1200 cycles per hour at 60 °C. For high-duty-cycle resistive loads, that's the thermal limit — the contactor needs to cool between operations. Power circuit terminals accept 4 to 50 mm² solid or flexible with cable end, tightened to 12 N.m. Control circuit terminals accept 1 to 4 mm², tightened to 1.2 N.m. The power circuit average impedance is 0.8 mΩ at 125 A 50 Hz, which gives a per-pole dissipation of 12 W in AC-1 service.
No direct successor is listed; this is the active variant for 125 A AC-1, 4 NO poles, 220 VAC coil. If the BOM calls for this exact order code, the LC1E95004M5WB is the part to specify.