The LX4FJ033 is a replacement contactor coil from the Schneider Electric TeSys range, designed for DC low-consumption control circuits at 33 V DC. Opening time is 45 to 60 ms; closing time is 50 to 60 ms, making it suited for standard motor switching duty where timing consistency matters for sequence coordination. The coil has an inrush resistance of 1.04 Ω and a holding resistance of 281 Ω at 20 °C — the wide ratio confirms a low-hold-power design that reduces heat buildup inside the contactor enclosure.
Control voltage and operating limits
Rated control voltage is 33 V DC. The coil drops out between 0.2 and 0.35 Uc at 55 °C (about 6.6 to 11.6 V), and operates reliably from 0.85 to 1.1 Uc (28 to 36.3 V) at the same temperature. The coil ships without a built-in suppressor module — plan an external flyback diode or RC snubber across the coil terminals to protect the DC control circuit from inductive kickback.