A modular power distribution device includes a base that is snap-fit onto DIN rail. The base includes a first mounting section, configured to receive a circuit protection device, and a second mounting section configured to receive an electronically actuated power distribution device, The circuit protection device slides on to the first mounting section and includes multiple output connections. The power distribution device slides on to the second mounting section and includes multiple input connections configured to engage the output connections of the circuit protection device as the power distribution device slides on to the second mounting section. An electronic control module is snap-fit to the assembly establishing electrical connections between the electronic control module and both the circuit protection device and the power distribution device. The electronic control module includes a port by which control signals are received and feedback signals may be transmitted.