The Chint NR2-93-30-40A thermal overload relay protects three-phase motors against overload and phase failure in industrial motor control circuits. It operates on a thermal bimetallic principle with an adjustable trip current range of 30–40 A, allowing precise matching to motor full-load amperage. The relay mounts directly beneath compatible Chint contactors to form a motor starter assembly and includes manual or automatic reset options plus auxiliary contacts for signaling.
