Miller Electric ProHeat 35 manual Electrical Service Guide, Hz Three, Phase Input Voltage

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4-4. Electrical Service Guide

Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda- tions are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source.

		50 Hz
		Three	60 Hz Three Phase
		Phase

	Input Voltage	400	460	575

	Input Amperes At Rated Output	60	50	40

	Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes 1
	Circuit Breaker 1, Time-Delay 2	70	61	45
	Normal Operating 3	80	70	60
	Min Input Conductor Size In AWG 4	6	8	8
	Max Recommended Input Conductor Length In Feet (Meters)	254	214	334
	Max Recommended Input Conductor Length In Feet (Meters)	(77)	(65)	(102)
		(77)	(65)	(102)

	Min Grounding Conductor Size In AWG 4	8	8	10
	Reference: 2005 National Electrical Code (NEC) (including article 630)

1If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.

2Time-Delay fuses are UL class RK5 .

3Normal 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.

Notes

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Contents OM-222 166K 2007−11 Processes DescriptionFile Induction Heating From Miller to You Table of Contents Limit Conditions Limit Condition Codes Fault Conditions − MaintenanceRoutine Maintenance Blowing Out Inside Of Unit EMF InformationDirectives StandardsDecstat1/07 Page Electric Shock can kill Symbol UsageInduction Heating Hazards Fumes and Gases can be hazardousCalifornia Proposition 65 Warnings Principal Safety Standards EMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLOLE Chauffage PAR Induction peut provoquer des brûlures DES Organes Mobiles peuvent provoquer des blessuresProposition californienne 65 Avertissements Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux − Definitions Are possible hazards as Shown by the symbolsPower before working on KillRating Label For CE Products Weee Label For Products Sold Within The EUSpecifications − InstallationSymbols And Definitions I1maxTipping Do not move or operate unit where it could tipSelecting a Location Movement Location And Airflow50 Hz Three Electrical Service GuidePhase Input Voltage Min Grounding Conductor Size In AWGDisconnect Device Input Power Connections Connecting 3-Phase Input Power For 460/575 Volt ModelsWelding Power Source Input Power Connections GND/PE Earth GroundConnecting 3-Phase Input Power For 400/460 Volt Models Power Source Output Connections Remote 14 Receptacle RC14 Information and Connections Remote 14 Socket InformationSocket Socket Information Socket No Socket Information Temperature Recorder Socket InformationSignal Common UnusedHandle Magnet Secondary Insulation ProtectionReceptacles Plug Workpiece Use handle to place magnet on the workpieceVolt AC Duplex Receptacle And Supplementary Protector Locating ThermocouplesOther end is fitted with a 2-pin type K connector Do not weld thermocouples while connected to power source Attaching Welded ThermocouplesUsing Contact Thermocouples Placing Temperature Probe− Components and Controls ControlsPower Source/System Setup − Setup and OperationSafety Equipment System DescriptionOM-222 166 Decrease button to change the value to the desired setting Temperature-Based ControlMode....... Preheat Control TC Temperature Soak Time ProgrammingBake-Out Pwht Post-Weld Heat TreatSoak Parameters Custom ProgramType.......Step Custom ProgramEnd 600Ramp Temperature 600 Ramp Rate 600 /Hr Number OM-222 166Number SoakSoak Function End FunctionManual Control Typical 5-Segment Custom ProgramSoak at 1250 degrees F for a period TC5 Target Temp −−−− TC6 Countdown.. −−−−−− Temperature Based ControlRun Status Preheat, Bake-Out And Pwht Run Status ScreenCooler Power TC5 Current TC6 Voltage Frequency KHzParameters Cooler cannot be turned off while output is onMust be running to enter Hold mode Real-Time OperationProgram run is initiated, the Run Button. a change of program parameters Air Cooled Output System Operating CharacteristicsPower Source Output Characteristics Liquid Cooled OutputDisconnect power − MaintenanceRoutine Maintenance Before maintaining− Safety Precautions for Servicing Servicing HazardsCalifornia Proposition 65 Warnings − Diagnostics & Troubleshooting Operator Interface IndicatorsRun Status Limit ConditionsLimit Condition Codes Limit Condition Additional InformationFault Conditions Fault Condition CodesFault Condition Additional Information System Diagnostic Screens Off Cable1 LQD DIAG1 OutI1 Cable2 LQD OutI2 ClntFR 0.75 GPMClrSts Flowing Therm3 Therm1Therm2 VBusTurn Off welding power source, and disconnect input power Removing Wrapper and Measuring Input Capacitor VoltageTools Needed 16, 3/8 Material Thickness Reference Chart Blowing Out Inside Of Unit− Electrical Diagram Circuit Diagram218 057-G − Parts List See Figure 11-313 11-2Front Panel Rear Panel Base w/Components Top Windtunnel Capacitor Assembly Right Windtunnel 229 Right Windtunnel 400 V Model Only 208 Left Windtunnel PLG14 10. Hermaphroditic Blank Plug Assy SOCKET/WRENCH Selection Table Standard Metric OM-222 166 Service Your distributor also givesSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s