Robots can go where people cannot, keeping them out of harm’s way while maintaining safety and security. Inspection robots can monitor infrastructure more frequently and allow for rapid remediation before problems occur, saving lives, time, and money. These robots need to be compact and rugged to access confined spaces, and they need to support a host of sensors and actuators to monitor efficiently and effectively. Some, with tethers, operate at high voltages of 400V with conversion down to 12V and 1.5kW for propulsion.