Industrial LRD3359

LRD3359 is a three-pole thermal overload relay from Schneider Electric’s TeSys Deca family, designed to mount directly under LC1D50–LC1D80 contactors to protect three‑phase motors from overload and startup faults. It offers an adjustable trip range from 48 A to 65 A with Class 10 single‑phase sensitivity, and it is rated for up to 690 VAC, making it compatible with common industrial motor circuits, while providing a direct mount on the contactor and screw‑clamp terminals for secure wiring. The unit’s footprint measures 236 mm in length, 55 mm in width, and 123 mm in depth and includes 1 normally open and 1 normally closed auxiliary contact, plus a test/reset feature with options for automatic or manual reset and a dedicated test button. It operates in ambient temperatures from −20 to +60 C and is UL and CSA listed, with a weight of 1.07 lb (about 0.49 kg).