Assessments - 4, GPA: 3.8
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Duty Cycle And Overheating 5 Minutes Welding 5 Minutes Resting 3 Minutes Welding 7 Minutes Resting rduty1 5/95 – SB-002 120-B Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating. Exceeding duty cycle can damage unit and void warranty. 30% Duty Cycle At 250 Amperes AC 50% Duty Cycle At 200 Amperes DC Overheating 0 15 A OR Minutes Reduce Duty Cycle OM-314 Page 10 2-3. Volt-Ampere Curves ssb1.1 10/91 – SB-002 696-A / SB–002 689-A The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding power source. Curves of other settings fall between the curves shown. A. DC Mode B. AC Mode 2-4. Dimensions And Weights Dimensions Height 26-1/4 in (667 mm) F Width 19-1/2 in (495 mm) E Depth 28-1/4 in (718 mm) C D C A 17-7/8 in (454 mm) B 1-1/8 in (29 mm) G C 3/4 in (19 mm) 8 Holes D 1-1/2 in (38 mm) E 26-1/2 in (673 mm) A F 27-1/4 in (692 mm) G 1/2 in (13 mm) Dia Weight B ST-157 733-B 250 50 Hz: 352 lbs (160 kg) 60 Hz: 345 lbs (156 kg) 250P 50 Hz: 360 lbs (163 kg) 60 Hz: 350 lbs (159 kg) 2-5. Selecting A Location 1 Rating Label Use rating label to determine input power needs. Label located on front panel. 2 Line Disconnect Device Locate unit near correct input power supply. Special installation may be required where gasoline or volatile liquids are present – see NEC Article 511 or CEC Section 20. 2 18 in (460 mm) 18 in (460 mm) Movement Location And Airflow 1 Do not move or operate unit where it could tip. Tipping loc_1 3/96 / Ref. ST-111 900-D 2-5. Selecting A Location 1 Rating Label Use rating label to determine input power needs. Label located on front panel. 2 Line Disconnect Device Locate unit near correct input power supply. Special installation may be required where gasoline or volatile liquids are present – see NEC Article 511 or CEC Section 20. 2 18 in (460 mm) 18 in (460 mm) Movement Location And Airflow 1 Do not move or operate unit where it could tip. Tipping loc_1 3/96 / Ref. ST-111 900-D 2-6. Weld Cable Sizes Welding Amperes Total Cable (Copper) Length In Weld Circuit Not Exceeding 100 ft (30 m) Or Less 150 ft (45 m) 200 ft (60 m) 250 ft (70 m) 300 ft (90 m) 350 ft (105 m) 400 ft (120 m) 10 To 60% Duty Cycle 60 Thru 100% Duty Cycle 10 Thru 100% Duty Cycle 100 150 200 250 300 350 400 4 3 3 2 1 1/0 1/0 4 3 2 1 1/0 2/0 2/0 4 2 1 1/0 2/0 3/0 3/0 3 1 1/0 2/0 3/0 4/0 4/0 2 1/0 2/0 3/0 4/0 2-2/0 2-2/0 1 2/0 3/0 4/0 2-2/0 2-3/0 2-3/0 1/0 3/0 4/0 2-2/0 2-3/0 2-3/0 2-4/0 1/0 3/0 4/0 2-2/0 2-3/0 2-4/0 2-4/0 *Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. S-0007-D OM-314 Page 11 2-7. Connecting To Weld Output Terminals 1 2 3 4 3/4 in Route weld cables under bar. 2-7. Connecting To Weld Output Terminals 1 2 3 4 3/4 in Route weld cables under bar. OM-314 Page 12 2-8. Electrical Service Guide 2-8. Electrical Service Guide With Power Factor Correction Without Power Factor Correction Input Voltage 200 230 460 575 200 230 460 575 Input Amperes At Rated Output 78 68 34 27 103 90 45 36 Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes 125 100 50 40 150 125 70 50 Min Input Conductor Size In AWG/Kcmil 8 8 12 14 6 8 10 12 Max Recommended Input Conductor Length In Feet (Meters) 61 (19) 80 (25) 131 (40) 133 (40) 87 (27) 77 (23) 208 (64) 200 (61) Min Grounding Conductor Size In AWG/Kcmil 8 8 12 14 6 8 10 12 Reference: 1993 National Electrical Code (NEC) S-0092-J 50 Hertz Models With Power Factor Correction Without Power Factor Correction Input Voltage 220 260 380 440 520 220 380 440 Input Amperes At Rated Output 68 57 39 34 29 84 49 42 Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes 100 90 60 50 45 125 70 60 Min Input Conductor Size In AWG/Kcmil 8 8 10 12 12 8 10 10 Max Recommended Input Conductor Length In Feet (Meters) 79 (24) 110 (33) 157 (48) 128 (39) 179 (55) 76 (23) 153 (47) 205 (63) Min Grounding Conductor Size In AWG/Kcmil 8 8 10 12 12 8 10 10 Reference: 1993 National Electrical Code (NEC) S-0092-J OM-314 Page 13 OM-314 Page 14 2-9. Placing Jumper Links And Connecting Input Power input_3 3/96 - ST-111 901-F Have only qualified persons make this installation. See rating label in Section 2-5, and be sure to supply correct input power. Check input voltage available at site. Remove side panel. 1 Jumper Link Label Check label – only one is on unit. Move jumper links to match input voltage, and label on unit. 2 Input And Grounding Conductors See Section 2-8. 3 Line Disconnect Device See Section 2-8. Connect input power. Reinstall side panel. L1 L2 3/8, 7/16, 1/2 in 208 VOLTS S-035 209-A L L 230 VOLTS L L 460 VOLTS L L 575 VOLTS L L 230 VOLTS L L 460 VOLTS L L S-010 587-B 575 VOLTS L L 1 200 VOLTS 230 VOLTS 460 VOLTS S-083 566-C L L L L L L S-047 672-A 2 S-021 145-B 220 VOLTS L L 380 VOLTS L L 440 VOLTS L L 260 VOLTS L L 380 VOLTS L L 520 VOLTS L L Do not overtighten. 3 Always connect grounding conductor first. = GND/PE L1 L2 GND/P...