The Schneider Electric LV510334 is a thermal motor protection relay from the TeSys LRD series. This device is designed to protect three-phase motors against overloads, phase loss, and phase imbalance. It features an adjustable current setting, a manual or automatic reset option, and an integrated fault indicator. It is typically used in combination with contactors to form a complete motor starter solution.
Parameters
Parameter Category Details
Model LV510334
Series TeSys LRD (Thermal Overload Relay)
Product Type Thermal Motor Protection Relay
Current Setting Range 0.11 - 0.16 A (as indicated by the "334" code - refer to selection tables)
Poles 3
Protection Functions Overload, phase loss, phase imbalance
Trip Class Class 10A (standard)
Ambient Compensation Yes
Reset Type Manual or automatic (selectable)
Auxiliary Contacts 1 NO + 1 NC (for signalling)
Mounting Snap-on mounting to compatible contactors (e.g., TeSys D-line)
Standards IEC/EN 60947-4-1, UL 508
Typical Applications Protection of small three-phase motors in pumps, fans, conveyors, compressors