an inverter for driving an electric motor, the inverter comprising at least one power module for converting a High Voltage Direct Current to a three-phase Alternating Current that drives the electric motor;

an inverter housing for receiving the inverter;

wherein the power module is adapted to be mounted on an end wall of the inverter housing by bolts and an insulating member is disposed between a head portion of the bolt and the power module,

wherein the insulating member comprises a base portion, the power module being securely mounted to the base portion and the end wall of the inverter housing by bolts,

wherein a threaded shaft portion of the bolt axially passes through a hole formed on the base portion and cut outs provided on the power module and engages with the end wall while the head portion of the bolt remains above the base portion such that the base portion is disposed between and separates the head portion of the bolt and the power module,

wherein the insulating member further comprises a peripheral wall axially extending from the base portion and away from the power module, and

wherein the peripheral wall of the insulating member has a height at least two times a height of the head portion of the bolt.