Features • Trip indicator • Stop • Test function • Automatic and manual reset • Mounts directly on contactor • 1 NO & 1 NC auxiliary contacts • Ambient temperature compensation Electrical Specifications • Trip Class: Class 10 • Utilization Category: AC-3 • Frequency: 50Hz or 60Hz • Rated Insulation Voltage: 690V • Current Setting Range: 0.1A to 140A • Rated Impulse Withstand Voltage Uimp: 6, 500V • Temperature Compensation: Up to 60 degree C • Permissible Rated Current: * At 60℃: 100% * At 70℃: 87% Environmental Data • Temperature Range: * Operating: -5 to +45 degree C * Storage: -25 to +80 degree C • Maximum Altitude: 2000m • Pollution Class: 3 Certificates and Standards • Certificates: CE, UL, and CCC • Standards: IEC60947-4, GB14048.4, UL508, and EN60947-4 Application JRS4-d series of thermal overload relay is used to protect three-phase asynchronous motor from overload and phase-failure.