Stock number
907621 380/400 V, 50 Hz CE
Miller SubArc power source
SubArc AC/DC 1250 Digital (50 Hz) CE
50 Hz CE AC/DC SubArc power source for AC or DC tandem and high-current submerged arc configurations.
Submerged arc (SAW)Electroslag (ESW)CAC-A support pathStock 907621
Amperage range
300-1,250 A in CC mode
Sub Arc voltage
20-44 V in SubArc mode
Rated output
1,250 A at 44 V, 60% duty cycle
Size
H 43 in, W 28 in, D 48 in
Weight
1,260 lb
Machine Specs
| Input | Input at rated output | kVA / kW | Max open-circuit voltage | Power source size | Net weight |
|---|---|---|---|---|---|
| 380/400 V, 50 Hz CE | 179 A at 380 V; 176 A at 400 V | 122 kVA / 67 kW | Unknown in AD/7.3 | H 43 in, W 28 in, D 48 in | 1,260 lb |
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Digital interface control, remote pendant, motor control, and wire drive pages for the SubArc ecosystem.
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OBT 600, OBT 1200, twin-wire torch, flux hopper, cables, contact tips, drive rolls, and straighteners.
View accessoriesSubArc Hercules System
High-deposition SubArc Hercules path with DC 1000, XMT 450 SAW Hercules, Hercules torch, and Hobart SubCOR wire references.
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Fitment note
Start with the power-source stock number and frequency before matching interface controls, wire drives, OBT torch body, contact tips, flux hopper, and cables.
Source
Miller AD/7.3, SubArc Digital Series, issued November 2025.