Allen-Bradley 815-E0V4 Manual Reset Overload Relay

The Allen-Bradley 815-E0V4 Manual Reset Overload Relay is a single-pole overload protection device designed for use with Allen-Bradley motor starters in AC motor circuits. It trips when motor current exceeds the configured threshold and requires a manual reset to restore operation, providing a deliberate restart after a fault. Rated for up to 600 V AC, the 815-E0V4 is compatible with standard 815-series overload configurations found in many industrial control panels, where motor protection is critical for preventing damage and reducing unplanned downtime. As a member of the 815 family, it is installed in the control circuit to interrupt the coil supply to the starter when an overload condition occurs, thereby disengaging the contactor and cutting power to the motor until reset. This manual-reset variant supports straightforward maintenance workflows and offers a clear fault recovery path without automatic re-energization, which can help operators verify and address the cause of a fault before restarting equipment.