Industrial EF205-210 Electronic Overload Relay

ABB EF205-210 Electronic Overload Relay is a self‑supplied protection device that mounts directly on ABB AF190–AF205 motor contactors to guard three‑phase motors from overloads. It covers a 63–210 A protection range with adjustable trip classes (10E, 20E, 30E), enabling precise protection tuned to the motor and application. Being self‑powered, it draws operating power from the protected circuit, removing the need for an external control supply. Part of ABB's EF205 family, the EF205‑210 provides motor protection in compact starter assemblies and is commonly used with AF190–AF205 contactors in applications such as fans, pumps, conveyors, and other industrial drives. The unit's orderable form carries the ABB designation 1SAX531001R1101 and is designed for direct mounting on compatible ABB contactors, delivering integrated overload protection within the starter package.