Allen-Bradley 193-EC5AB Overload Relay E3 Plus

Allen-Bradley 193-EC5AB E3 Plus overload relay with voltage monitoring provides solid-state motor protection for small- to mid-size motors in low-voltage circuits. As part of the E3 Plus family, it adds voltage protection and energy monitoring to the standard overload function, helping detect undervoltage, voltage quality issues, and motor protection events. The 193-EC5AB is rated for 1-5 A full-load current and is designed for direct contactor mounting, with 6 inputs and 2 outputs for system integration, including optional DeviceLogix Series B capability and an external ground fault sensor input. This module is typically used in motor control centers and with Allen-Bradley 193-series overload relays to protect motors against overload, short circuits, and voltage irregularities while enabling diagnostic feedback and interlock logic through its input/output set. Its voltage monitoring feature helps ensure the motor is protected against abnormal supply conditions, adding an extra layer of safety in systems where voltage quality can fluctuate. In practical terms, 193-EC5AB is selected when you need precise protection for small motors (1–5 A FLA) and want integrated monitoring data, with the convenience of a compact, direct-montage overload relay that can be paired with compatible contactors in control panels.