Firmware Update Policy

The MicroLogic trip unit or control unit of a circuit breaker is the main component of the intelligent modular unit (IMU). The IMU includes the circuit breaker, the MicroLogic trip unit or control unit and the associated optional Enerlin'X devices.

The primary reason for updating the firmware of a MicroLogic trip unit or control unit is to obtain the latest IMU features. If the latest IMU features are not required, it is not mandatory to update the firmware of the MicroLogic trip unit or control unit and the Enerlin'X devices of the IMU.

If you notice a bug on the MicroLogic trip unit or control unit, or on one of the Enerlin'X devices of the IMU, refer to the release note corresponding to the device to check if the bug is corrected in a later version of the firmware. Update the firmware of the device to benefit from the correction. If there is no bug fix available, call the Customer Care Centre.

Use the latest version of EcoStruxure Power Commission software to update the firmware of a MicroLogic trip unit or control unit, or an Enerlin'X device of the IMU.

After updating the firmware of one device, Schneider Electric recommends updating the firmware of the other devices in the IMU to maintain compatibility and avoid discrepancies between devices. Before proceeding, check the compatibility of the other devices with the new firmware.

The tables in this document provide information about the backward compatibility between MicroLogic trip units or control units and Enerlin'X devices.