93
EN-US
TT 170 MV/B, 
TT 170 MV/np
Grid voltage 1 x 120 V / 1 x 230 V
Mains voltage tolerance
1 x 120 V - 20% / +15%
1 x 230 V - 30% / +15%
Grid frequency 50 / 60 Hz
Mains fuse protection
1 x 120 V 20 A slow-blow
1 x 230 V 16 A slow-blow
Grid connection 
1)
Z
max
 at PCC 
3)
 = 356 mOhm
Primary continuous power (100% D.C. 
2)
 )
1 x 120 V 1.8 kVA
1 x 230 V 2.7 kVA
Max. apparent power S
1max
1 x 120 V 2.8 kVA
1 x 230 V 3.5 kVA
Cos phi 0.99
Welding current range
TIG / 1 x 120 V 3 - 140 A
TIG / 1 x 230 V 3 - 170 A
Rod electrode / 1 x 120 V 10 - 100 A
Rod electrode / 1 x 230 V 10 - 150 A
Welding current at 10 min / 40 °C (104 °F)
TIG / 1 x 120 V 40% D.C. 
2)
 / 140 A
60% D.C. 
2)
 / 120 A
100% D.C 
2)
 / 100 A
TIG / 1 x 230 V 40% D.C. 
2)
 / 170 A
60% D.C.
2)
 / 155 A
100% D.C.
2)
 / 140 A
Rod electrode / 1 x 120 V 40% D.C. 
2)
 / 100 A
60% D.C. 
2)
 / 90 A
100% D.C. 
2)
 / 80 A
Rod electrode / 1 x 230 V 40% D.C. 
2)
 / 150 A
60% D.C. 
2)
 / 120 A
100% D.C. 
2)
 / 110 A
Open circuit voltage (pulsed)
TIG 35 V
Rod electrode 101 V
Working voltage
TIG / 1 x 120 V 10.1 - 15.6 V
TIG / 1 x 230 V 10.5 - 16.8 V
Rod electrode / 1 x 120 V 20.4 - 24.0 V
Rod electrode / 1 x 230 V 20.4 - 26.0 V
Striking voltage U
p
9 kV
The arc ignition device is suitable for manu-
al operation