Common Applications: Our most powerful system for plumbing, HVAC, large cable work, battery terminals, motor leads and stator applications. Sweat solder thin-wall copper tubing up to 3" diameter. Components: 105D1 - 3,000 Watt Resistance Soldering Power Unit 10587 - Heavy-Duty High-Heat Carbon Pliers Handpiece 10519HW - High Wattage Foot Switch Specifications: Three tap selectable power outputs of 1000, 2000 and 3000W. (4.0 to 10.1VAC) 220V. Durable, User-friendly hand piece with ten foot (3.1m) 6 AWG high-strand DLO cable. Hand piece connects to power unit with 3/8" ring terminal & stud/wing nut system to accommodate higher output range. Concave Carbon Electrodes yield higher temperatures and allow for customization by grinding to fit application.