XMT 350/450 Series Heavy Industrial Applications Quick Specs Construction Shipbuilding Railroad Truck/Trailer Manufacturing Fabrication Repair Shops Rental Fleets Power Generation Plants MIG (GMAW)/Pulsed MIG (GMAW-P)* Stick (SMAW) TIG (GTAW) Flux-Cored (FCAW) Air Carbon Arc Cutting and Gouging (CAC-A) Issued July 2012 • Index No. DC/18.83 Multiprocess Welding Power Source Input Power 350: Requires 3- or 1-Phase Power, 450: Requires 3-Phase Power Rated Output *XMT 350 CC/CV and 450 CC/CV with required optional control; not available with XMT 350 VS model. XMT 350 VS Wind Tunnel Technology ™ protects electrical components and PC boards from contamination. Fan-On-Demand™ cooling system operates only when needed, reducing noise, energy use and the amount of contaminants pulled through machine. Lift-Arc™ allows TIG starting without the use of high-frequency. Starts the arc without contaminating the weld with tungsten. Adaptive Hot Start™ increases the output amperage at the start of a weld if necessary, eliminating electrode sticking. XMT 350 Model Only Auto-Line™ Power Management Technology allows for any input voltage hook-up (208 – 575 V) with no manual linking required, providing convenience in any job setting. Ideal solution for dirty or unreliable input power. (450 model is manual link.) Dinse- or Tweco-style weld disconnects provide high-quality weld cable connections. (450 model utilizes studs.) Inverter arc control technology provides greater puddle control for superior 6010 Stick electrode performance, and outstanding MIG weld performance. Line voltage compensation keeps welding output constant even if input power varies by +/-10 percent. Line voltage compensation further expands to an amazing +37/-59 percent when operating on 460 VAC. Process selector switch reduces the number of control setup combinations without reducing any features. Large, dual digital meters are easy to view and are presettable to ease setting weld output. Lightweight, aerospace-grade aluminum case offers protection with the benefit of reduced weight. Power source is warranted for 3 years, parts and labor. Original main power rectified parts are warranted for 5 years. Gun warranted for 90 days, parts and labor. Equipment Sales US and Canada An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA Phone: 866-931-9730 FAX: 800-637-2315 International Phone: 920-735-4554 International FAX: 920-735-4125

XMT 350/450 Specifications Voltage Range in CV Mode Amperage Range in CC Mode Amps Input at Rated Load Output, 60 Hz 208 V 230 V 400 V 460 V 575 V KVA KW Input Power Rated Output (Subject to change without notice.) Certified by Canadian Standards Association to both the Canadian and U.S. Standards. XMT 350/450 Performance Data XMT 350 CC/CV and VS DUTY CYCLE CHART 500 425 400 WELDING AMPERES % DUTY CYCLE XMT 450 CC/CV DUTY CYCLE CHART 700 WELDING AMPERES % DUTY CYCLE

XMT 350 VS Control Panel Manufactured Under the Following US Patents: 5,601,741 5,642,260 5,902,150 6,002,103 6,115,273 6,193,548 6,239,407 6,266,257 6,625,046 6,611,189 6,426,888 Other Patents Pending Additional Features Low OCV Stick. A built-in, selectable feature, that reduces the Stick mode open-circuit voltage (OCV) to nearly 15 volts when the welding power source is not in use. Eliminates the need for add-on voltage reducers. Note: VS model is available only with Tweco-style weld cable disconnects. Tweco cable connectors are not supplied with the unit and must be ordered separately. Optional...

XMT 450 CC/CV Control Panel 4 1 1. Voltmeter 2. Remote Control Receptacle 3. Process Selector Switch (Rotary Switch) 4. Ammeter 5. Voltage/Amperage Adjustment Control 6. Power On/Off Switch 7. Arc Control 8. Optional Gas Valve Additional Features Primary voltage display shows what primary voltage the power source is linked for without removing the side panels. Saves time and assures you that the power source has been correctly linked for available input voltage. Unique case design helps protect internal components from dirt and dust. To connect input power cord and/or set unit up for correct...

Genuine Miller Accessories ® Optima™ #043 389 A multipurpose, microprocessor-based pulse control for both synergic MIG (wire welding or GMAW) or manual MIG pulsing. Use this control with the XMT CC/CV power sources and any Miller wire feeder, including automatic feeders and spool guns. Includes a 25-foot (7.6 m) cord with 14-pin plug. (Not for use with XMT VS model.) Extension Cords for Optima #242 205 025 25 ft. (7.6 m) #242 205 050 50 ft. (15 m) #242 205 080 80 ft. (24.3 m) WC-24 Weld Control #137 549 Designed for use with Miller CV power sources supplying 24 VAC and 14-pin receptacles. For...

Genuine Miller Accessories ® Protective Cover Wire Feeders/Guns #195 478 Mildew and water resistant, odor-free cover protects your machine’s finish. For 300/350 A inverters: XMT, Maxstar and Dynasty. Inverter Racks SuitCase® X-TREME™ 8VS #951 181 SuitCase® X-TREME™ 12VS #951 184 Lightweight, portable wire feeder for a variety of wires up to .062 inch. Holds up to an 8-inch (8VS) or 12-inch (12VS) spool of wire. Operates on open-circuit voltage eliminating the need for a control/power cord. See Lit. Index No. M/6.41. 70 Series S-74S #951 196 S-74D #951 198 S-74DX #951 200 Features Posifeed™ wire...

Genuine Miller Accessories ® Coolant Systems Cable Connectors and Adapters For more information, see the Miller Coolant Systems literature sheet, Index No. AY/7.2. Note: XMT 350 power sources are equipped with Dinse- or Tweco-style connectors for secondary connections. Coolmate™ 3 #043 007 115 VAC #043 008 230 VAC For use with water-cooled torches rated up to 600 amps. Unique paddle-wheel indicator, external filter and easy-fill spout. Coolmate™ V3 #043 009 115 VAC For use with water-cooled torches rated up to 500 amps. Vertical design conveniently mounts to Miller cylinder rack in place of one...