ERSA 150 S Standard Soldering Iron The tried and proven soldering iron the ERSA 150 S is designed for soldering operations with a greater heat requirement, as, for example, on copper conductors with a cross-section of 6 mmĀ². Other areas of application of th ERSA standard soldering iron include soldering thin sheet metal and lead glazing. The device is supplied with angled ERSADUR Long-life soldering tip (0152JD) and holder (0A04).