Plasma arc-voltage: polarity, brown +, pin 1/2 on P-metalwise/85

• Source-Date (SAST): 2023-04-20 17:26
• From/To: April → support
• Dest: both
• Review-after: 2027-02-28
• Status: current
• Source: company email (Archives/Internal Affairs), 2023-04-20

Facts

• Arc-voltage from the plasma unit is polarised — do not reverse.
• Loom is usually blue / brown; brown is positive. If colours differ, open the THC and check.
• Wrong polarity blows the resistor; symptom on the plasma is arc break. Bypass exists if blown.
• P-metalwise/85 box accessory plug: connector 1 = positive, 2 = negative.