All the components are housed in a metal cabinet with a removable cover. Schematic diagrams and specifications are silk-screened onto the back of the plastic mounting base. A 3-m (10’) power cord is provided with the unit which is protected by a thermomagnetic circuit breaker. Connections to coded 4-mm terminals are made with colour-coded leads. Five (5) red terminals and four (4) extra black terminals are supplied with the panel. The trainer is sold with teacher and student guides (one of each).