Hobart Welding Products OM-949 manual Electrical Service Guide, Connecting Input Power

Page 17

3-7. Electrical Service Guide

Input Voltage

230 V − 60 Hz

220 V − 50 Hz

 

 

 

Input Amperes At Rated Output

47.5

 

 

Max Recommended Standard Fuse Rating In Amperes

 

Circuit Breaker 1, Time-Delay 2

50

Normal Operating 3

70

Min Input Conductor Size In AWG 4

12

Max Recommended Input Conductor Length In Feet (Meters)

87 (27)

 

 

Min Grounding Conductor Size In AWG 4

12

Reference: 2005 National Electrical Code (NEC) (including article 630)

1Choose a circuit breaker with time-current curves comparable to a Time Delay Fuse.

2“Time-Delay” fuses are UL class “RK5” .

3“Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and above).

4Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table 310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.

3-8. Connecting Input Power

1

Y

Disconnect and lockout/tag-

 

out input power before instal-

 

 

ling receptacle.

 

Y Have only qualified persons

 

=GND/PE Earth Ground

make this installation. See

 

rating label in Section 3-4, and

 

 

 

 

be sure to supply correct in-

 

 

put power.

 

1

Proper Receptacle

 

 

(NEMA 6-50R)

 

 

(User-Supplied)

 

Receptacle must comply with appli-

 

cable codes.

 

2

Input And Grounding

 

3

Conductors

 

See size and length using Section

 

3-7. Conductors must comply with

 

applicable codes.

 

3 Over-Current Protection

 

Select type and size of over-current

 

protection using Section 3-7.

2

4

Plug (NEMA 6-50P)

Connect plug to properly installed

 

1

4

receptacle.

Close and secure door on discon- nect device. Remove lockout/tagout device, and place switch in the On position.

Ref. 802 246-A

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Contents Description ProcessesFrom Hobart to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéDuty Cycle Charts SpecificationsSelecting a Location Volt-Ampere CurvesVolt Model AmpsInstalling Electrode Cable and Barrel onto Electrode Holder Installing Electrode Holder And Work ClampInstalling Work Cable onto Work Clamp Removing Barrel From Elec- trode Holder150 ft 200 ft 250 ft Weld Output Cables350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Put terminalsConnecting Input Power Electrical Service GuideControls Months Routine MaintenanceLubricating Shunt Block And Anti-Noise Adjustment Wrapper Remove wrapper from unit Crank Handle Shunt Shaft Reinstalling Amperage Adjustment IndicatorTrouble Remedy Troubleshooting− Electrical Diagrams Welding Methods Shielded Metal Arc Welding Smaw Procedure − Welding Methods & Troubleshooting6013 7014 Electrode And Amperage Selection ChartPositioning The Electrode Holder Striking An ArcConditions That Affect Weld Bead Shape Weld Bead CharacteristicsElectrode Angle Arc LengthButt Joints Electrode Movement During WeldingLap Joints Welding TroubleshootingTee Joints PorosityLack Of Penetration Excessive SpatterIncomplete Fusion Burn-Through Excessive PenetrationWaviness Of Bead DistortionStart Your Professional Welding Career Now − Parts List Dia Part Description Quantity Page Assistance ServiceSupport Hobart Welding Products Contact your Distributor for
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