Miller Stick / TIG Machine Support

Dynasty 300 Series

AC/DC TIG and stick series covering Dynasty 300 machine-only, CE, TIGRunner, CE TIGRunner, and Complete packages. Supports 208-600 V Auto-Line input, 1-300 A DC TIG, 2-300 A AC TIG, 5-300 A stick, air carbon arc, Coolmate 1.3 package builds, and W-280 or W-375 torch paths.

AC/DC TIG (GTAW)Pulsed TIG (GTAW-P)Stick (SMAW)Air carbon arc (CAC-A) Industrial

Processes

AC/DC TIG (GTAW), Pulsed TIG (GTAW-P), Stick (SMAW), Air carbon arc (CAC-A)

Output range

DC TIG 1-300 A; AC TIG 2-300 A; Stick 5-300 A

Input power

208-600 V, 1- or 3-phase, 50/60 Hz

Class

Industrial

Status

Current catalog

Source page

Miller catalog page 63

Dynasty 300 Spec Sheet Quick Specs

Industrial Applications

Aerospace
Heavy fabrication
Precision fabrication
Aluminum ship repair
Pipe and tube fabrication
Anodized aluminum fabrication

Power Source Features

4.3-inch color LCD interface with guided setup and parameter explanations
Auto-Line accepts 208-600 V input with no manual linking
Blue Lightning high-frequency starts and Lift-Arc start mode
QuietPulse reduces audible noise when sine or triangular pulse waveforms are selected
Program memory, Pro-Set, locks and limits, USB software updates, Cooler Power Supply, and Cooler-On-Demand

Quick Ratings

Input power: 208-600 V, 1- or 3-phase
AC TIG range: 2-300 A; DC TIG range: 1-300 A; Stick range: 5-300 A
Rated output: 250 A at 20 V, 60% duty cycle
Air carbon arc gouging maximum: 3/16 in.
Machine-only net weight: 55 lb.

Dynasty 300 Specifications

Welding mode	Input power	Welding amperage range	Rated output at 60% duty cycle	Amps input at rated output	KVA / KW
TIG	3-phase	2-300 A AC; 1-300 A DC	250 A at 20 V	208 V: 19 A; 230 V: 17 A; 400 V: 10 A; 460 V: 8 A; 600 V: 7 A	7.5 / 6.6
TIG	1-phase	2-300 A AC; 1-300 A DC	250 A at 20 V	208 V: 33 A; 230 V: 30 A; 400 V: 17 A; 460 V: 15 A; 600 V: 11 A	6.7 / 6.7
Stick	3-phase	5-300 A	250 A at 30 V	400 V: 14 A; 460 V: 12 A; 600 V: 9 A	9.8 / 9.1
Stick	1-phase	5-300 A	200 A at 27.2 V	208 V: 35 A; 230 V: 32 A	9.3 / 9.2

Refer to the owner manual for complete stick ratings. Max open-circuit voltage is 80 VDC, with 22-30 VDC low OCV sense voltage for stick and Lift-Arc TIG. Dimensions are H 13.88 in., W 8.5 in., D 21.88 in.; net weight is 55 lb.

Dynasty 300 Performance Data

Input power	TIG duty cycle	Stick duty cycle	AC TIG material thickness range	DC TIG material thickness range	Stick electrode maximum diameter	Carbon arc gouging maximum	Generator requirement
380-600 V	300 A at 35%; 250 A at 60%; 200 A at 100%	300 A at 25%; 250 A at 60%; 200 A at 100%	0.012-3/8 in. (0.3-9.5 mm)	0.004-3/8 in. (0.1-9.5 mm)	6010: 1/4 in.; 7018: 7/32 in.; 7024: 3/16 in.	3/16 in.	12.5 kW
208-240 V	300 A at 35%; 250 A at 60%; 200 A at 100%	300 A at 15%; 200 A at 60%; 150 A at 100%	0.012-3/8 in. (0.3-9.5 mm)	0.004-3/8 in. (0.1-9.5 mm)	6010: 1/4 in.; 7018: 7/32 in.; 7024: 3/16 in.	3/16 in.	12.5 kW

Dynasty 300 Cooler And Torch Details

Item	Rating / capacity	Notes
Coolmate 1.3	115 V, 50/60 Hz; 1.3 gal tank; max cooling 3,400 W / 11,600 Btu/hr; rated cooling 1,330 W / 4,540 Btu/hr	Dynasty 300 models turn Coolmate 1.3 on and off; cooler net weight is 46 lb.
Weldcraft W-280 (WP-280) TIG torch	Water-cooled; 195 A AC and 280 A DC at 100% duty cycle; .020-1/8 in. electrode range	Uses 13N consumables and a three-piece cable. Front-end consumables are sold separately.

Dynasty 300 Control Panel And Weld Settings

Area	Spec sheet settings	Notes
Process	AC TIG HF, DC TIG HF, AC TIG Lift-Arc, DC TIG Lift-Arc, AC Stick, DC Stick, Carbon Arc Gouge	TIG AC is 2-300 A, TIG DC is 1-300 A, and stick is 5-300 A.
Pulse	DC and AC pulse: 0.1-500 pulses per second; 5-95% peak time; 5-95% background amps	DC pulse waveforms include square, sine, and triangular.
AC waveshape	Balance 30-99% EN; frequency 20-400 Hz; advanced square, soft square, sine, and triangular waveforms	Independent EN/EP amperage and EN/EP waveform controls support aluminum TIG tuning.
Sequencer	Initial amps, initial time, initial/final slope, weld time, final amps, final time	Trigger choices include remote standard foot/finger/pushbutton and sequencer modes.
Stick controls	DIG off-100%, Hot Start on/off, Stick-Stuck on/off, normal/low OCV	Menu-selectable stick controls support AC and DC stick setup.

Dynasty 300 Models And Packages

Package	Stock numbers	Included or required items
Machine only power sources	907818; 907818003 CE	Dynasty 300 and Dynasty 300 CE. Each includes adjustable shoulder strap and center carry handle, 8 ft power cord with no plug, and two 50 mm Dinse-style connectors.
Air-cooled contractor kit path	301309; 301311; 301549; 301550	Choose A-150 or A-200 kit with RFCS-14 HD foot control or RCCS-14 fingertip control. Kits include TIG torch, control, stick holder, work clamp, regulator, gas hose, gas hose coupler, AK2C kit, and TIG torch connector.
Water-cooled TIGRunner path	907818002; 907818004 CE; 043810	Choose Dynasty 300 TIGRunner or Dynasty 300 TIGRunner CE, then order four gallons low-conductivity coolant. TIGRunner includes 8 ft power cord, Coolmate 1.3, and Small Runner cart. Torch kit, accessories, and coolant are sold separately.
Water-cooled Complete package	951937	Dynasty 300 Complete with wireless foot control includes Dynasty 300, Coolmate 1.3, four gallons coolant, Small Runner cart, wireless foot control, and W-280 torch kit.
Water-cooled torch kit path	300185; 300990; 301268	Choose W-250 kit, W-280 kit recommended for Dynasty 300, or W-375 kit. Kits include 25 ft Weldcraft torch with Dinse-style connector, cable cover, work clamp, flowmeter regulator with gas hose, and AK4GL gas lens kit.

Dynasty 300 Accessories And Torch Details

Item	Part number	Notes
2-Wheel Trolley Cart	300971	For Dynasty 210/300 and Maxstar 210/280 with or without Coolmate 1.3.
Small Runner Cart	301615	For Dynasty 210/300 and Maxstar 210/280 with Coolmate 1.3.
Coolmate 1.3	301616; 301617 quick connect	120 V, 50/60 Hz, CE cooler for torches up to 280 A. Requires coolant.
Low-conductivity coolant	043810	One-gallon bottle; order in quantities of four.
Protective cover	301382	Fits Dynasty 210/300 and Maxstar 280.
Water-cooled torch kits	300185; 300990; 301268	W-250, W-280 recommended for Dynasty 300, and W-375 kit paths.
Weldcraft A-150 (WP-17)	WP-17-12-R; WP-17-25-R	Air-cooled A-150 torches require connector 195378.
Weldcraft A-200 (WP-26)	WP-26-12-R; WP-26-25-R	Air-cooled A-200 torches require connector 195379.
Weldcraft A-250 TIG torch	301525025; 301525026	250 A air-cooled two-piece torch with 25 ft cable; 301525025 no valve, 301525026 with valve. Requires Dinse-style connector 042533 or Tweco-style connector 191981.
Air-cooled TIG torch connectors	195378; 195379	195378 connects air-cooled Weldcraft torches except A-200; 195379 connects A-200 (WP-26). A-80 (WP-24) torches require 24-5 connector.
Water-cooled TIG torch connector	195377	50 mm Dinse-style connector with water return line for Weldcraft water-cooled torches.
Weldcraft quick connects	QRG; QRW	QRG is for shielding gas hoses; QRW is for torch coolant hoses and is required for CE TIGRunner torch or torch-kit orders.
Remote controls	301580; 301589; 151086; 043688; 187208; 129337; 242211020; 301582	Wireless foot, RFCS-14 HD, RCC-14, RCCS-14, RMS-14, RMLS-14, RHC-14, and wireless hand control paths.
Tungsten ranges	WC/WL series	Spec sheet lists 1/16 in. for 70-150 A, 3/32 in. for 140-250 A, 1/8 in. for 225-400 A, and 5/32 in. for 300-500 A.
Gas Tungsten Arc Welding publication	250833	Miller educational material listed with Dynasty 300 accessories.

Machine Packages

Stock number	Catalog package
907818	Dynasty 300 power source only
907818003	Dynasty 300 power source only, CE
907818002	Dynasty 300 TIGRunner with CPS
907818004	Dynasty 300 TIGRunner with CPS, CE
951937	Dynasty 300 Complete package with wireless foot control

Compatible Accessories

2-Wheel Trolley Cart

300971 For Dynasty 210/300 and Maxstar 210/280 with or without Coolmate 1.3.

Open support page

Small Runner Cart

301615 For Dynasty 210/300 and Maxstar 210/280 with Coolmate 1.3.

Open support page

Coolmate 1.3

301616 120 V, 50/60 Hz CE cooler for torches up to 280 A; requires coolant.

Open support page

Coolmate 1.3 Quick Connect

301617 120 V, 50/60 Hz CE quick-connect Coolmate 1.3; requires coolant.

Open support page

TIG Coolant

043810 One-gallon bottle; order in quantities of four for water-cooled package builds.

Open support page

Protective Cover

301382 Fits Dynasty 210/300 and Maxstar 280.

Open support page

Air-Cooled TIG Torch Connector

195378 Connects all air-cooled Weldcraft torches except A-200 to Dinse-style connector.

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Air-Cooled A-200 TIG Torch Connector

195379 Connects Weldcraft A-200 (WP-26) torch to Dinse-style connector.

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Water-Cooled TIG Torch Connector

195377 50 mm Dinse-style connector with water return line for Weldcraft water-cooled torches.

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Weldcraft Gas Hose Quick Connect

QRG Quick connect for shielding gas hoses.

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Weldcraft Water Hose Quick Connect

QRW Quick connect for torch coolant hoses; required for CE TIGRunner torch or torch-kit orders.

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Wireless Remote Foot Control

301580 Wireless foot control with 90 ft operating range.

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RFCS-14 HD Foot Control

301589 Heavy-duty wired foot control with 20 ft cord and 14-pin plug.

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RCC-14 Fingertip Control

151086 East/west fingertip current and contactor control.

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RCCS-14 Fingertip Control

043688 North/south fingertip current and contactor control.

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RMS-14 On/Off Control

187208 Momentary-contact rubber-covered pushbutton switch for contactor control.

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RMLS-14 Switch

129337 Momentary- and maintained-contact rocker switch for contactor control.

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RHC-14 Hand Control

242211020 Miniature hand control with 20 ft cord and 14-pin plug.

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Wireless Remote Hand Control

301582 Wireless hand control with 300 ft operating range.

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Gas Tungsten Arc Welding Publication

250833 Miller educational material listed with Dynasty 300 accessories.

Open support page

Weldcraft A-250 TIG Torch

301525025 25 ft 250 A air-cooled two-piece torch, no valve; requires connector 042533 or 191981.

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Weldcraft A-250 TIG Torch With Valve

301525026 25 ft 250 A air-cooled two-piece torch with valve; requires connector 042533 or 191981.

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Dinse-Style TIG Torch Connector

042533 Dinse-style connector for two-piece A-250 torch path.

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Tweco-Style TIG Torch Connector

191981 Tweco-style connector for two-piece A-250 torch path.

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Weldcraft W-375 Water-Cooled Torch Kit

301268 Dynasty 300 water-cooled torch kit option.

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Compatible TIG Torch Paths

Weldcraft A-150 contractor kit with RFCS-14 HD

301309 Air-cooled Dynasty 210/300 contractor kit with A-150 torch and RFCS-14 HD foot control.

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Weldcraft A-150 contractor kit with RCCS-14

301311 Air-cooled Dynasty 210/300 contractor kit with A-150 torch and RCCS-14 fingertip control.

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Weldcraft A-200 contractor kit with RFCS-14 HD

301549 Air-cooled Dynasty 210/300 contractor kit with A-200 torch and RFCS-14 HD foot control.

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Weldcraft A-200 contractor kit with RCCS-14

301550 Air-cooled Dynasty 210/300 contractor kit with A-200 torch and RCCS-14 fingertip control.

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Weldcraft A-250 TIG torch

301525025 Dynasty 300 air-cooled A-250 no-valve torch path; with-valve torch is 301525026.

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Weldcraft W-250 water-cooled torch kit

300185 Optional Dynasty 300 water-cooled torch kit path listed with W-280 and W-375 options.

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Weldcraft W-280 water-cooled torch kit

300990 Spec sheet recommended Dynasty 300 water-cooled torch kit and Complete package torch kit.

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Weldcraft W-375 water-cooled torch kit

301268 Spec sheet listed Dynasty 300 water-cooled torch kit option.

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Stick Lead Path

Stick Leads, Electrode Holders & Work Clamps

Use this path after confirming the machine Dinse or weld cable connector style.

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Miller Catalog Accessories

These accessories are placed here only when the Miller catalog names this machine, torch, feeder, or family path. Verify plug style, voltage, package, and serial-specific details before ordering.

Part	Accessory	Catalog fitment	Source / path
042418	Dinse-Style Connector Kit	Accepts #4 to #1/0 AWG cable. Catalog lists Dinse/Tweco secondary-connection power-source paths.	Catalog p. 121 Open support path
042934	Universal Cart and Cylinder Rack	For XMT 400, CST, Maxstar 210/280, and Dynasty 210/300.	Catalog p. 121 Open support path
290084	Replacement Lens Cover	For Syncrowave 212 and Dynasty 210/300.	Catalog p. 128 Open support path

Included / Package Notes

Included With Packages

Dynasty 300 power sources include adjustable shoulder strap and center carry handle, 8 ft power cord with no plug, and two 50 mm Dinse-style connectors
Dynasty 300 TIGRunner adds Coolmate 1.3 and Small Runner cart; CE TIGRunner uses the quick-connect Coolmate model
Dynasty 300 Complete package adds four gallons coolant, wireless foot control, and W-280 water-cooled torch kit
QRW water hose quick connects are required when ordering torch or torch kit for the CE TIGRunner

Process Notes

AC/DC TIG (GTAW)
Pulsed TIG (GTAW-P)
Stick (SMAW)
Air carbon arc (CAC-A)

Next Lookup Step

After you identify the machine, open the torch path for TIG cups, collets, gas lenses, or back caps. Open stick accessories for leads, holders, clamps, and connector checks.

Need More Help?

Stick Support

Troubleshooting stays secondary. Start with the machine package, then verify the leads, holder, remote, cooler, or TIG torch path.

Open stick accessories

TIG Support

Many inverter stick machines also run TIG. Use the torch path when the question is cups, collets, gas lenses, back caps, or cooling.

Open Weldcraft TIG torches

Search

Use Find My Part when the machine name, stock number, or accessory part number is known.

Find My Part

Source: Miller Electric 2026 Full-line Catalog, catalog page 63, literature AD/4.96. Additional source: Miller Dynasty 300 Series TIG/Stick Welding Power Source data sheet, issued March 2026, Index No. AD/4.96. This page separates Dynasty 300 stock numbers, 208-600 V input, TIGRunner/Complete packages, A-250, W-280, and W-375 paths from Dynasty 210. Machine specifications and accessory relationships are catalog-backed.