Schneider Electric LC1D25-LAD4RCU AC Contactor

Schneider Electric TeSys D LC1D25 3-pole AC contactor with LAD4RCU RC transient suppressor module is a compact industrial switch designed to control inductive loads, such as motors, pumps, and conveyors, in control panels. The LC1D25 provides three switching contacts for 3‑phase circuits, while the LAD4RCU accessory adds RC-type coil suppression rated for 110–250 V AC control circuits, protecting the control side from voltage spikes and reducing electrical noise. The suppression module is specified for operation in ambient temperatures from -25 to 55 °C, making it suitable for a wide range of industrial environments. This configuration is compatible with TeSys Deca contactors in the LC1D09–LC1D38 family (3‑pole versions), enabling integrated protection across multiple LC1D models, including the LC1D25 variant. Typical applications include direct-on-line motor starting, equipment like fans and pumps, and other automation tasks where a reliable 3‑pole contactor with coil protection is desired.