The LX1LD450 is a replacement coil for the TeSys Integral range of motor starters and contactors, designed for a 450 V AC 50 Hz control circuit. It draws 350...400 VA inrush at 50 Hz with a 0.55 power factor, then settles to 20...30 VA hold-in at 0.28 power factor — a typical AC magnet coil profile that means the control transformer must be sized for the inrush peak, not the sealed draw.
Control circuit voltage limits
The coil operates across 0.85...1.1 Uc (382.5...495 V AC) and drops out between 0.25...0.7 Uc (112.5...315 V AC) at up to 55 °C. That dropout band is wide — expect release somewhere in that range depending on temperature and coil history, so verify the control scheme's undervoltage release threshold if the application relies on a precise dropout point.
Category and range context
Listed under category 18402 — WORLD SERVICE PARTS (CONTROL ACCESS) — and part of the TeSys range, this coil is a service-part replacement for Integral-series contactors and starters already in the field. It is not a design-in component; its role is to keep existing panels running.