Miller Electric CST 280 User Manual

Processes
Stick (SMAW)
TIG (GTAW) Lift-Arc
Input Power Requires 3- or 1-Phase Power
Amperage Range 5 – 280 A
Max. Open-Circuit Voltage 79 V
Weight 41 lb (18.6 kg)
Industrial Applications
Power Plant Construction
Petrochemical Construction
Maintenance and Repair
Shipbuilding
CST
™
280
Stick/TIG Welding
Power Source
Issued Feb. 2008 • Index No. DC/29.55
The Power of Blue
®
.
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Web Site
www.MillerWelds.com
International Headquarters
Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125
Portable in the shop or at
the job site — at 41 lb the
CST 280 is easily moved
from location to location.
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.
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.
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.
Power source is warranted for 3 years, parts and labor.
Original main power rectified parts are warranted for 5 years.
Quick
Specs
Lift-Arc
™
start provides TIG
arc starting without the use of
high frequency.

Miller Electric CST 280 Specifications

General

Brand	Miller Electric
Model	CST 280
Category	Welding System
Language	English

Summary

CST 280 Quick Specifications

Industrial Applications

Lists industries like power plant construction, maintenance, and shipbuilding where the CST 280 is utilized.

Supported Processes

Details the welding processes the CST 280 supports, including Stick (SMAW) and TIG (GTAW) with Lift-Arc.

Power Input Requirements

Specifies the input power needs, requiring 3- or 1-Phase power.

Performance Range

Outlines the amperage range (5-280 A) and maximum open-circuit voltage (79 V).

Physical Weight

States the machine's weight as 41 lb (18.6 kg), highlighting its portability.

CST 280 Key Features and Benefits

Superior Stick Arc Performance

Provides excellent arc performance, especially with difficult-to-run electrodes like E6010.

Adaptive Hot Start

Automatically increases amperage at arc start to prevent electrode sticking.

Lift-Arc Start

Enables TIG arc starting without the need for high frequency.

Easy Input Voltage Switching

Allows changing between low and high input voltage ranges via an external switch.

CST 280 Specifications and Data

Detailed Specifications

Table listing output ratings, input power, amperage range, voltage, and dimensions for various models.

Control Panel Overview

Identifies and describes the function of each control on the CST 280 panel.

Performance Data Charts

Presents duty cycle and volt/amp curves for performance analysis.

Genuine Miller Accessories

Weldcraft TIG Torches

Details available air-cooled TIG torch models with specifications like amperage and cable length.

Remote Controls

Lists various remote control options including hand controls, foot pedals, and their features.

Cable Connectors and Adapters

Describes connectors and adapters for International-style, Tweco-style, and Cam-Lok connections.

CST 280 Rack System

Rack System Benefits

Explains how the rack simplifies protection, transport, and multi-machine operation.

CST Rack Specifications

Provides dimensions and net weight for 4-pack and 8-pack CST rack configurations.

Ordering Information

Lists stock numbers and descriptions for power sources, racks, options, fuses, and accessories.