Power module connection assemblies include a longitudinally extending channel member and cam member. The longitudinally extending channel member includes a first end of a connector member in a sidewall thereof having a face exposed to an interior channel of the channel member. The connector member has an electrical connection section on a second end of the connector member, the second end being displaced from the first end. The longitudinally extending cam member is configured to be positioned in the channel of the channel member. The cam member is rotatably movable within the channel from a first position, wherein a mating connector bar may be received in the channel of the channel member proximate the first end of the connector member, to a second position to press the mating connector bar and the first end of the connector member together.