Miller Electric CP-302, CP-252TS manual Connecting Input Power, = GND/PE Earth Ground

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2-15. Connecting Input Power

= GND/PE Earth Ground

1

7

When making connections in the line disconnect device,

9

8

3

4

connect the Green Or Green/Yellow conductor first.

Install conductors into a deenergized line disconnect device.

Make connections

IMPORTANT

.Tighten nuts to 65 in lb +/- 5 in lb.

L1 (U)

6

 

to machine first and supply last.

Tools Needed:

3/8 in, 1/2 in

2L2 (V)

L3 (W)

3

L1 L2 L3

3/8 in, 1/2 in

5

GND/ PE Connect Green Or Green/Yellow

GND/PE Conductor First.

YDisconnect and lockout/tagout input power before connecting input con- ductors from unit.

YHave only qualified persons make this installation.

See rating label on unit and check input volt- age available at site.

1Line Disconnect Device

2Input Conductors

3Grounding Conductor

Select size and length using Section 2-13. Conductors must comply with national, state, and local electrical codes. Use lugs of proper amperage capacity and correct hole size.

4 Strain Relief

Route conductors through strain relief.

5Machine Grounding Terminal

6Line Terminals

YMake input power connections to the welding power source before making connections into a deenergized line disconnect device.

Connect green or green/yellow grounding con- ductor to machine grounding terminal first. Then connect input conductors to line termi- nals.

Close access door.

7Disconnect Device (Supply) Grounding Terminal

8Disconnect Device Line Terminals

YIn the deenergized line disconnect de- vice, connect green or green/yellow grounding conductor to supply grounding terminal first, never to a line terminal. Be sure grounding conductor goes to an earth ground.

Connect input conductors to line terminals.

9 Overcurrent Protection

Select type and size using Section 2-13(fused disconnect switch shown).

Close door on line disconnect device.

ST-800 103-B / Ref. ST-801 116

OM-259 Page 19

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Contents Description ProcessesFrom Miller to You Table of Contents Page Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryAbout Pacemakers Principal Safety StandardsEMF Information Identifie un message de sécurité particulier Signification des symbolesLES Décharges Électriques peuvent être mortelles LES Fumées ET LES GAZ peuvent être dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut causer un incen- die ou une explosionLES Particules Projetées peu- vent blesser les yeux LES Pièces Chaudes peuvent cau- ser des brûlures gravesLES Pièces Mobiles peuvent cau- ser des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut FaireConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques 230 380 400 SpecificationsDuty Cycle And Overheating 200Ampere Models Volt-Ampere CurvesWeight Dimensions And WeightsDimensions Movement Tipping Do not move or operate unit where it could tipSelecting a Location For GMAW, use optional gas valve Slope Connection Label Tapped Reactor AC-Z And Slope Coils Slope Selection 250 Ampere ModelInductance Selection 300 Ampere Models ARC Welding can cause Electromagnetic Interference Weld Output Terminals And Selecting Cable SizesRemote 14 Receptacle Information Electrical Service Guide Connecting To 115 Volts AC Duplex Receptacle+/- 5 in lb Placing Jumper Links= GND/PE Earth Ground Connecting Input PowerMonths Routine MaintenanceDisconnect power ControlsReplacing Fuses Overload ProtectionTrouble Remedy Troubleshooting− Electrical Diagrams Circuit Diagram For 300 Ampere Models OM-259 − Parts List Complete Assembly Panel, Front w/Components RC8 Rectifier Assembly Support ServiceMiller Electric Mfg. Co Owner’s Record

CP-302, CP-252TS specifications

The Miller Electric CP-252TS and CP-302 are advanced power sources designed to meet the demands of both the industrial and manufacturing sectors. Known for their reliability and performance, these models are ideal for a variety of welding applications, including MIG, TIG, and stick welding.

One of the main features of the CP-252TS is its superior arc stability, which is essential for achieving high-quality welds. This model integrates Miller's Auto-Set technology, enabling users to easily configure their welding parameters for optimal performance. By simply selecting the material type and thickness, the machine automatically adjusts voltage and wire feed speed, streamlining the setup process and significantly reducing the likelihood of user error.

In contrast, the CP-302 model emphasizes versatility and connectivity, offering multiple welding processes in one machine. It is equipped with a robust wire feeder that can handle various wire diameters, making it suitable for both thin sheet metal and thicker materials. The CP-302 also features Miller’s advanced inverter technology, ensuring high energy efficiency and reducing power consumption. This makes it an environmentally friendly option without compromising on performance.

Both models come equipped with a user-friendly interface, allowing operators to monitor and adjust settings with ease. The clear LCD display provides critical information at a glance, improving workflow and efficiency in high-demand environments. Additionally, these machines are designed with durability in mind, featuring rugged construction that withstands the rigors of daily use in challenging industrial conditions.

Safety is a priority with the Miller Electric CP-252TS and CP-302. They include advanced protection features that prevent overheating and electrical overloading, ensuring both equipment longevity and operator safety. Furthermore, Miller's commitment to compliance with industry standards means these machines offer peace of mind in terms of regulatory adherence.

In summary, the Miller Electric CP-252TS and CP-302 are exceptional choices for professionals looking for reliable, efficient, and versatile welding solutions. Their combination of advanced technology, user-friendly design, and robust safety features make them indispensable tools in any welding operation. Whether for fabrication, maintenance, or production, these power sources deliver the performance and efficiency required to keep pace with modern industrial demands.
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