Tweco 300 Auto-Cut - Manual (Page 39)

Manual No. 0-4817 Auto-Cut 300 3-1 INSTALLATION
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
shall be checked by qualified personnel.
Input Power Input Current
Voltage Freq. 3-Ph 3-Ph Fuse (Amps) Wire (AWG)
(Volts) (Hz) (kVA) (Amps) 3-Ph 3-Ph
208 50/60 74 206 260 #3/0 2
230 50/60 72 181 230 #2 2
400 50/60 75 109 135 #3 1
400 (CE) 50/60 89 112 150 #2 1
460 50/60 89 112 150 #2 1
Auto-Cut 300 Power Supply Input Power Specifications
2 Extra Hard Usage Type G, G-GC, W
Suggested Sizes (See Note)
Line Voltages with Suggested Circuit Protection and Wire Sizes
1 Extra Hard Usage Type SO, SOW, SOO, SOOW, ST, STW, STO, STOW, STOO, STOOW
Based on National Electric Code and Canadian Electrical Code
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 gases and pressure regulators. Gases must be of high quality. Pressure regulators
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.
Thermal Dynamics recommends the use of its coolants 7-3580 and 7-3581 (for low temperatures).
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 T M ' Concentrate* -65° F / -51° C
Coolant Capabilities
* For mixing with D-I Cool TM 7-3583