Miller Electric XMT 350 Series - Manual (Page 2)

2
Certified to both the Canadian and U.S. Standards for welding equipment.
DUTY CYCLE CHART
DUTY CYCLE
30
WELDING AMPERES
200
150
100
10 15 20 25
500
400
300
100 40 50 60 70 90 80
425
350
250
3-PHASE OPERATION
1-PHASE OPERATION
6 AWG POWER CORD
8 AWG POWER CORD
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500
AMPS
VOLTAGE
GTAW
MIN
SMAW
80A
ARC
CONTROL
50%
75%
100%
25%
0%
SMAW
MAX GTAW
MAX
CC VOLT/AMP CURVE
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500
AMPS
VOLTAGE MAX
MIN
CV VOLT/AMP CURVE
XMT ® 350 Performance Data
Input
Power
Three-
Phase
Single-
Phase
Rated Out put
at 60%
Duty Cycle
350 A at
34 VDC
300 A at
32 VDC
Amperage
Range in
CC Mode
5 – 425 A
5 – 425 A
Voltage
Range in
CV Mode
10 – 38 V
10 – 38 V
Max. Open-
Circuit
Voltage
75 VDC
75 VDC
Amps Input at Rated Load Output, 60 Hz,
208 V 230 V 400 V 460 V 575 V KVA KW
40.4 36.1 20.6 17.8 14.1 14.2 13.6
60.8 54.6 29.7 24.5 19.9 11.7 11.2
Weight
80 lb
(36.3 kg)
Dimensions
H: 17 in (432 mm)
W: 12-1/2 in (318 mm)
D: 24 in (610 mm)
Amperage
Class*
300 A
350 A
565 A
Power
Processing
Auto-Link ®
Auto-Line ™
Manual
Remote
Capability
Yes
Yes
Yes
No
Yes
Industrial Inverters
XMT 304 CC/CV, 230/460 VAC
XMT 350 MPa, 208 – 575 VAC
XMT 350 CC/CV, 208 – 575 VAC
XMT 350 VS, 208 – 575 VAC
XMT 456 CC/CV, 230/460 VAC
Process
Capability
Stick,
DC TIG,
MIG,
CAC-A
Pulsed MIG Capability
Optima ™ Pulse Control Required
Built-In
Optima ™ Pulse Control Required
No
Optima ™ Pulse Control Required
Connectors
Dinse only
Dinse or Tweco
Dinse or Tweco
Tweco only
Ring Lug only
For more
Information
Lit. No. DC/18.8
Page 4
Page 3
Page 3
Lit. No. DC/18.8
Auxiliary
Power
Optional
Optional
Optional
No
Standard
XMT ® 350 Specifications
(Subject to change without notice.)
Which XMT ® is Right for You?
Additional Features
Exceptional electrical efficiency. At 400 A,
efficiency is 87.24%!
350 A of welding output at 60% duty cycle
with superior low-end performance.
Power factor of .95 enables smaller
fuses/breakers and primary wiring. Primary
amperage draw at rated output is 25% less
than the competition. Ultra-tough, polycarbonate-blended cover
for control panel protects front controls
from damage.
Optional gas solenoid for TIG welding.
Which XMT 350
is right for you? See XMT 350 CC/CV
(page 3)
YES
NO
YES
NO
See XMT 350 MPa
(page 4)
See XMT 350 VS
(page 3)
Need Pulsed MIG
(GMAW-P)
capability?
Most often Stick (SMAW)
or Flux Cored (FCAW) welding
with a voltage-sensing
feeder?
*60% Duty Cycle Rating