The LA1LC072U is an undervoltage trip coil from the TeSys range, designed to drop out a contactor or starter when the control voltage falls below a set threshold. It's an instantaneous release — no intentional delay — so the moment the voltage sags, the coil releases and the main contacts open. That's the kind of response you want for a motor that must stop on a brownout, not coast through it. Rated for 240 V AC at 50 Hz, with a control circuit voltage range of 0.8...1.1 Uc. The trip threshold sits at 0.35...0.7 Uc.
Power draw and packaging
Inrush is 8 VA AC; holding power is 4 VA AC. The part ships as a set of 10.
Active lifecycle per the manufacturer.