Tweco 300 XT Auto-Cut 380V - Manual (Page 25)

AUTO-CUT 300 XT
Manual 0-5261 INSTALLATION 3-1
SECTION 3: INSTALLATION
3.01 Installation Requirements
Electric Supply
The electrical supply network, the gas and water supply system must meet local safety standards. This
conformity must be checked by qualified personnel.
Auto-Cut 300 XT™ Power Supply
Input Power Input Current Suggested Sizes (See Note)
Voltage Freq. 3-Ph 3-Ph Fuse (Amps) Wire (AWG) Wire (mm 2 )
(Volts) (Hz) (kVA) (Amps) 3-Ph 3-Ph 3-Ph
380 50/60 63 97 150 #4 25
IEC 380 50/60 71 110 150 #4 25
NOTE
* Suggested wire size based on United States NFPA 70 National Electrical Code 2011 edition published by the
National Fire Prevention Association. Listings are from table 400.5(A)(2) for flexible cord of certain types rated
for 75 deg C in ambient temperatures up to 30 deg C. Using wires of lower temperature rating or different insu-
lation type may require larger wire size. Derate for higher ambient.
These are suggestions only. Always refer to your local and national codes that apply to your region for final
determination of correct wire type and size.
CAUTION
Fuse and wire sizes are for reference only. The installation must conform to national and local codes for the type
and method of wire being used.
Gas Supply
The customer must supply all gas and pressure regulators. Gases must be of high quality. Pressure regula-
tors must be double-stage and installed as close as possible to the gas console. Contaminated gas can cause
one or more of the following problems:
• Reduced cutting speed
• Poor cut quality
• Poor cutting precision
• Reduced consumables life.
• Oil or grease contamination from compressed or bottled air can cause fires in conjunction with oxygen.
Cooling System Requirements
Coolant must be added to the system on installation. The amount required varies with torch leads length.
Victor Thermal Dynamics recommends the use of its coolants 7-3580 and 7-3581 (for low temperatures).
Coolant Capabilities
Cat. Number and Mixture Mixture Protects To
7-3580 ‘Extra-Cool TM ’ 25 / 75 10° F / -12° C
7-3581 ‘Ultra-Cool TM ’ 50 / 50 27° F / -33° C
7-3582 ‘Extreme Cool
TM
’ Concentrate* -65° F / -51° C
* For mixing with D-I Cool TM 7-3583