The Phoenix Contact PT and PTV Push-in connection terminal blocks were developed for direct conductor connection. This means that rigid conductors or conductors with ferrules are inserted directly into the terminal block without using any tools. The special spring profile enables the easy insertion of conductors with ferrules starting from 0.34 mm² and rigid conductors up to 16 mm². Larger cross-sections between 35 and 185 mm² can be wired with the PowerTurn spring cage connection. 

With the PT and PTV Push-in connection, the contact spring is opened automatically when the conductor is inserted. This provides the required pressure force against the current bar. The spring is opened by an actuating push button, either to release conductors or to connect flexible conductors without a ferrule, starting from 0.14 mm². This is done easily and without direct contact with live parts. The button can be operated with all standard screwdrivers. 

The PT connection technology has been tested and approved for a wide range of approvals. These include, for example, vibration resistance in accordance with railway standard EN 50155 as well as shock and corrosion resistance in accordance with current shipbuilding registers. The connection technology is also certified for process engineering in areas with increased safety (Ex e).