CST |
™ |
280 |
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Issued Feb. 2008 • Index No. DC/29.55 |
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Stick/TIG Welding |
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Power Source |
Quick |
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Industrial Applications |
Processes |
Input Power Requires 3- or 1-Phase Power |
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Power Plant Construction |
Stick (SMAW) |
Amperage Range 5 – 280 A |
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Petrochemical Construction |
TIG (GTAW) Lift-Arc |
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Specs |
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Maintenance and Repair |
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Max. Open-Circuit Voltage 79 V |
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Shipbuilding |
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Weight 41 lb (18.6 kg) |
The Power of Blue®.
Superior Stick arc performance even on the difficult-to-run electrodes like E6010.
Adaptive Hot Start™ for Stick arc starts automatically increases the output amperage at the start of a weld should the start require it. Prevents the electrode from sticking and creating an inclusion.
Lift-Arc™ start provides TIG arc starting without the use of high frequency.
Easy To Install with a new switch on the outside of the package, the machine can be changed between low and high input voltage ranges. Also, since the switch is on the back, input voltages can be changed without removal from inverter racks.
Optional 4- or 8-pack racks are available for multiple operator applications. These are commonly used in construction and shipyard applications. All CST controls including the power switch are located on front of the machine for easy access.
Portable in the shop or at the job site — at 41 lb the CST 280 is easily moved from location to location.
Remote amperage control provided through 14-pin receptacle on front of the machine. This permits use of standard remote amperage control devices.
Tweco® or Dinse-style connectors are available on the CST 280.
6 ft power cable included.
Power source is warranted for 3 years, parts and labor.
Original main power rectified parts are warranted for 5 years.
Miller Electric Mfg. Co. |
International Headquarters |
Web Site |
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An Illinois Tool Works Company |
Phone: 920-735-4505 |
www.MillerWelds.com |
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1635 West Spencer Street |
USA FAX: 920-735-4134 |
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Appleton, WI 54914 USA |
Canadian FAX: 920-735-4169 |
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International FAX: 920-735-4125 |
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Specifications (Subject to change without notice.)
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Welding |
Max. Open- |
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Welding |
Input |
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Amperage |
Circuit |
Amps Input at Rated Load Output, 50/60 Hz, |
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Dimensions |
Net |
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Description |
Mode |
Power |
Rated Output |
Range |
Voltage |
208 V |
220 V |
230 V |
400 V |
440 V |
460 V |
575 V |
KVA |
KW |
Weight |
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CST-280, |
Stick |
3-Phase |
280 A at 31.2 V, |
5 – 280 A |
77 VDC |
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35 |
34.2 |
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17.8 |
14.7 |
14.6 |
10.2 |
H: 13-1/2 in |
41 lb |
220-230/460- |
(SMAW) |
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35% Duty Cycle |
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(343 mm) |
(18.6 kg) |
575 Dinse |
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W: 7-1/2 in |
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TIG |
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200 A at 28 V, |
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23.3 |
22.5 |
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11.7 |
9.7 |
9.6 |
6.4 |
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(191 mm) |
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CST-280, |
(GTAW) |
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100% Duty Cycle |
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D: 18 in |
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220-230/460- |
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1-Phase |
200 A at 28 V, |
5 – 200 A |
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43.9 |
43 |
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10.1 |
6.6 |
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(457 mm) |
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575 Tweco |
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50% Duty Cycle* |
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150 A at 26 V, |
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32.7 |
32 |
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7.3 |
4.6 |
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100% Duty Cycle* |
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CST-280, |
Stick |
3-Phase |
280 A at 31.2 V, |
5 – 280 A |
67 VDC |
36 |
33 |
22.8 |
19.8 |
18 |
17.5 |
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14 |
10.2 |
H: 13-1/2 in |
41 lb |
208-230/400- |
(SMAW) |
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35% Duty Cycle |
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(343 mm) |
(18.6 kg) |
460 Dinse |
TIG |
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200 A at 28 V, |
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23.5 |
23 |
22.8 |
13.5 |
12 |
12.7 |
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10.2 |
6.9 |
W: 7-1/2 in |
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(191 mm) |
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CST-280, |
(GTAW) |
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100% Duty Cycle |
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D: 18 in |
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208-230/400- |
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1-Phase |
200 A at 28 V, |
5 – 200 A |
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43.9 |
43.3 |
43 |
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9.9 |
6.5 |
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(457 mm) |
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460 Tweco |
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50% Duty Cycle* |
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150 A at 26 V, |
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35 |
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32.9 |
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7.6 |
4.8 |
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100% Duty Cycle* |
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*Output ratings on 230 V single-phase are reduced to comply with CSA current limitation on input power cable.
CSA approval. 1P23M approval.
Control Panel
1. Output Light |
1 |
2.On/Off Switch
3.Weld Process Selector Switch
4.Overtemp Light
5.Amperage Adjustment Control (5 – 280 Amps)
2
3
Performance Data
DUTY CYCLE CHART
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300 |
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3-Phase Operation |
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250 |
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AMPERES |
200 |
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1-Phase Operation |
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150 |
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OUTPUT |
100 |
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50 |
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10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
% DUTY CYCLE
OFF
ON
POWER
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150 |
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X1 |
8 |
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X |
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200 |
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STIFF |
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K |
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IC |
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S |
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75 |
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T |
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5 |
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T C |
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K |
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225 |
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C |
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F |
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1 |
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250 |
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A |
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F |
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- |
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T |
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280 |
PROCESS SELECT |
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AMP ADJUST |
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CST 280 |
MILLER ELECTRIC MFG. CO. APPLETON, WI |
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VOLT/AMP CURVE AT 150 AMPS
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100 |
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90 |
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80 |
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70 |
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Setpoint |
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VOLTAGE |
60 |
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XX18 |
150 Amps |
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50 |
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TIG |
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40 |
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XX10 |
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30 |
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XX18 |
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20 |
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Soft |
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10 |
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TIG |
XX18 Stiff, |
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0 |
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XX10 Soft |
XX10 Stiff |
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0 |
50 |
100 |
150 |
200 |
250 |
300 |
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AMPERAGE |
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2