Thermal Arc 161 STL, Service Manual

Page: 23 / 96

SAFETY AND INSTALLATION THERMAL ARC 161STL, 201TS
Manual 0-5148 3-7 Safety and Installation
Input Power
Each unit incorporates an INRUSH circuit. When the MAIN CIRCUIT SWITCH is turned on, the inrush circuit provides
pre-charging for the input capacitors. A relay in the Power Control Assembly (PCA) will turn on after the input capacitors
have charged to operating voltage (after approximately 5 seconds)
NOTE
Damage to the PCA could occur if 253 VAC or higher is applied to the Primary Power Cable.
Model Primary Supply Lead
Size (Factory Fitted)
Minimum Primary
Current Circuit Size
(Vin/Amps)
Current & Duty Cycle
LIFT TIG/ HF TIG
(GTAW)
STICK (SMAW)
Thermal Arc
161 STL
12 AWG (3.3mm²)
115V/30A - 100A @ 45%
115V/30A 150A @ 35% -
208-230V/25A - 160A @ 30%
208-230V/15A 160A @ 30% -
Thermal Arc
201 TS
12 AWG (3.3mm²)
115V/30A - 100A @ 45%
115V/30A 150A @ 35%
-
208-230V/25A - 200A @ 20%
208-230V/25A 200A @ 25%
-
Table 3-2: Primary Circuit Sizes to Achieve Maximum Current