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CST™ 280 Competitive Comparison

   
Lincoln
Invertec V275S
 
Thermal Pro-Lite 250S
 
Comments
Welding Range 5-280   5-275   5-250   The CST provides a higher output. The Invertec derates to 250 on 50 HZ power. The CST derates on single phase power.
Related Output 35% @ 280 amps, 31 V   35% @ 275 amps, 31 V   40% @ 250 amps, 30 V   The CST provides a higher duty cycle and amperage.
Maximum Open Circuit Voltage 79V DC   80V   69V   Comparable
Primary Link Method Manual   Manual Link (Switch & Jumper)   Switch and Smart Logic   CST does not require linking within low and high voltage ranges.
Input Voltage (V) 220-230/460-575 (50/60 Hz)
or
208-230/400-460 (50/60 Hz)
  208/220/230/380/400/415/440/460/575
(50/60 Hz)
  208/230/460 (50/60 Hz)   CST 280 link switch is in back. Machine does not need to be removed from rack to change voltage input.
Input Voltage Phase Capability Single Phase/3-Phase   Single Phase/3-Phase   Single Phase/3-Phase   Same
Primary Power Cord 6 feet   10 feet   10 feet   Comparable
Weight (lb) 41   54.5   39.7   CST provides high duty cycle at low weight, almost 14 lbs less than the Invertec 275. The CST is a one-man portable machine.
Dimensions W"xD"xH" 13.5 x 7.5 x 18   13.6 x 9.0 x 20.25   14.2 x 7.1 x 16.5   Comparable
3rd Party Certification CSA 1P23M   UL 1P23S   1P23S IEC974-1 FMC   1P23M more stringent than IP23S
On/Off Switch Front   Front   Back   Ease of turning on or off from front panel, especially in racks
Process Select Switch Yes - Rotary Switch   Yes, Toggle   Button   CST process select switch also establishes current dig setting which simplifies the operator interface and use of the product.
Hot Start Control Adaptive   Variable   Variable   Adaptive hot start automatically increases output amperage at the start of the weld. Other machines require setting for each electrode type.
Dig Control (Arc Control) Automatically selected by process.   Variable   Variable   The CST automatically provides the proper dig setting based on process selected.
Lift Arc TIG Arc Start Yes   Yes   No   Tungsten contamination free TIG starting without the use of high frequency.
Output Control Yes, 5-280 A, Pot   Yes, 1-275 A, Pot   Yes, 5-250 A Pot with digital meter   Comparable
Remote Control Connector 14-Pin   6-Pin   3-Pin   The CST has remote detect does not require remote switch.
Remote Operation Amperage Control   On-Off, Amperage Control   On-Off, Amperage Control   CST permits remote amperage control needed in construction applications.
Fan-On-Demand Yes   Fan as needed. Fan operates when machine is under load.   No   CST Fan only operates as needed, based on temperatures. This reduces power cost and internal contamination.
Diagnostics LED's Display Fault Code   Only thermal overload protection.   Displayed codes on digital meter.   Simple method of identifying problems and servicing product. CST also has internal diagnostic LED's for troubleshooting.
Connectors 50 mil, Dinse or Tweco Style   50 mil, Dinse Style   50 mil, Dinse Style   Only CST offers a TWECO style connector, standard for the construction market.
Warranty 3 Years Parts/Labor   3 Years Parts/Labor   3 Years   No one offers a better warranty with solid support.
Racks 4-Pak (340 lb) or 8-Pak (628 lb)  

4-pak (483 lb) or
8-Pak (986 lb)

  No   The CST rack provides a more compact, lighter design while providing the same rated output.