Miller Electric SRH-503 Connecting Input Power, Welding Power Source Input Power Connections

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4-12. Connecting Input Power

3

 

 

 

= GND/PE Earth Ground

8

 

 

 

7

 

 

10

 

 

9

 

 

 

2

4

 

 

6

 

 

 

1

 

 

IMPORTANT

 

5

3

 

Input Contactor

 

L1 (U)

 

6

L2 (V)

 

 

L3 (W)

 

4

3

 

 

 

 

= GND/ PE Earth Ground

Tools Needed: 3/8 in

3/8 in

YInstallation must meet all National and Local Codes − have only quali- fied persons make this installation.

YDisconnect and lockout/tagout in- put power before connecting input conductors from unit.

YMake input power connections to the welding power source first.

YAlways connect green or green/ yellow conductor to supply grounding terminal first, and never to a line terminal.

See rating label on unit and check input voltage available at site.

1Input Power Conductors (Customer Supplied Cord)

Select size and length of conductors using Section 4-10.Conductors must comply with national, state, and local electrical codes. If applicable, use lugs of proper amperage capacity and correct hole size.

Welding Power Source Input Power Connections

2 Strain Relief

Route conductors (cord) through strain re- lief and tighten screws.

3Machine Grounding Terminal

4Green Or Green/Yellow Grounding Conductor

Connect green or green/yellow grounding conductor to welding power source grounding terminal first.

5Welding Power Source Line Terminals

6Input Conductors L1 (U), L2 (V) And L3 (W)

Connect input conductors L1 (U), L2 (V) and L3 (W) to welding power source line terminals.

Close and secure access door on welding power source.

Disconnect Device Input Power Con- nections

7Disconnect Device (switch shown in OFF position)

8Disconnect Device (Supply) Grounding Terminal

Connect green or green/yellow grounding conductor to disconnect device grounding terminal first.

9 Disconnect Device Line Terminals

Connect input conductors L1 (U), L2 (V) And L3 (W) to disconnect device line terminals.

10 Over-Current Protection

Select type and size of over-current protection using Section 4-10(fused dis- connect switch shown).

Close and secure door on line disconnect device. Remove lockout/tagout device, and place switch in the On position.

800 103-C / Ref. 801 116-A

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Contents OM-2236 ProcessesDescription From Miller 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 Principal Safety Standards EMF InformationAbout Pacemakers − Consignes DE Sécurité − À Lire Avant Utilisation Identifie un message de sécurité particulierLES Particules Projetées peu- vent blesser les yeux LE Soudage peut causer un incen- die ou une explosionLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïeLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques − Definitions General Precautionary LabelInput Connection Label Nameplate Safety SymbolsDo Not Lift ? a− Installation SpecificationsDuty Cycle And Overheating Volt-Ampere Curves Selecting a LocationMovement Location And Airflow Dimensions w/Running Gear And Lift Eye Dimensions And WeightsBe careful when placing or moving unit over uneven surfaces TippingWeld Cable Sizes Selecting And Preparing Weld Output Cables150 ft 200 ft 250 ft 300 ft 350 ft 45 m 60 m 70 m 90 m 105 m 120 mElectrical Service Guide Connecting To Weld Output TerminalsPlacing Jumper Links Connecting Input Power Welding Power Source Input Power ConnectionsDisconnect Device Input Power Con- nections Controls − OperationElectrode/Amperage Selector Routine Maintenance − Maintenance & TroubleshootingDisconnect power before maintaining Months Fuse F1Trouble Remedy Troubleshooting TableOM-2236 Circuit Diagram − Electrical DiagramMain Assembly − Parts ListHINGE,CONT Polyolefin Copolymer 2.000 L W/.125H THERMOSTAT,NC Open 135C Close 135C W/INSUL Leads Support ServiceMiller Electric Mfg. Co Owner’s Record

SRH-503 specifications

The Miller Electric SRH-503 is a cutting-edge multiprocess welding machine designed to meet the diverse needs of professional welders. This versatile machine combines various welding processes, including MIG, TIG, and stick welding, making it a perfect choice for fabricators, artists, and maintenance professionals. With its robust build quality and user-friendly design, the SRH-503 provides excellent performance for both light and heavy-duty applications.

One of the standout features of the SRH-503 is its advanced inverter technology, which allows for efficient and stable arc performance. This technology not only improves energy efficiency but also enhances the machine's ability to handle a wide range of materials, from thin sheet metals to thicker plates. The inverter system ensures a consistent welding output, which is essential for achieving high-quality welds in various positions.

Another significant characteristic of the Miller Electric SRH-503 is its dual voltage capability. Operating on either 230V or 460V, the SRH-503 provides flexibility for working in diverse environments and power sources. This feature is particularly beneficial for welders who need to switch between different job sites or who want the convenience of using the machine in various locations.

The SRH-503 is equipped with a digital display that provides real-time feedback on settings and performance. This makes it easier for welders to adjust parameters for optimal results. The machine also includes advanced controls that allow for precise adjustments of welding voltage and amperage, ensuring that users can fine-tune their settings based on the specific needs of their project.

Built with durability in mind, the Miller Electric SRH-503 features a sturdy enclosure that can withstand the rigors of job site conditions. The compact design increases portability, making it easy to transport between locations. Additionally, the machine's intuitive interface allows for quick setup and adjustment, which saves valuable time in fast-paced working environments.

In summary, the Miller Electric SRH-503 is a state-of-the-art welding machine that brings together versatility, advanced technology, and user-friendly features. With its inverter system, dual voltage capability, intuitive controls, and rugged design, this machine is well-suited for professionals seeking reliable and efficient welding solutions. Whether for industrial, fabrication, or repair applications, the SRH-503 delivers exceptional performance and quality.
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