Electrical Service Guide, Hz Three | Miller Electric ProHeat 35

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

OM-222 166 Page 12

Image 18

Miller Electric ProHeat 35 Electrical Service Guide, Hz Three, Phase Input Voltage, Min Grounding Conductor Size In AWG

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 Information Directives StandardsDecstat1/07 Page Electric Shock can kill Symbol UsageInduction Heating Hazards Fumes and Gases can be hazardous California Proposition 65 Warnings Principal Safety Standards EMF Information About Implanted Medical Devices UNE Décharge Électrique peut entraîner la mort Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereux LA 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 blessures Proposition 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 Kill Rating Label For CE Products Weee Label For Products Sold Within The EU Specifications − InstallationSymbols And Definitions I1max Tipping Do not move or operate unit where it could tipSelecting a Location Movement Location And Airflow 50 Hz Three Electrical Service GuidePhase Input Voltage Min Grounding Conductor Size In AWG Disconnect Device Input Power Connections Connecting 3-Phase Input Power For 460/575 Volt ModelsWelding Power Source Input Power Connections GND/PE Earth Ground Connecting 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 Unused Handle Magnet Secondary Insulation ProtectionReceptacles Plug Workpiece Use handle to place magnet on the workpiece Volt AC Duplex Receptacle And Supplementary Protector Locating Thermocouples Other end is fitted with a 2-pin type K connector Do not weld thermocouples while connected to power source Attaching Welded Thermocouples Using Contact Thermocouples Placing Temperature Probe − Components and Controls Controls Power Source/System Setup − Setup and OperationSafety Equipment System Description OM-222 166 Decrease button to change the value to the desired setting Temperature-Based ControlMode....... Preheat Control TC Temperature Soak Time Programming Bake-Out Pwht Post-Weld Heat Treat Soak Parameters Custom Program Type.......Step Custom ProgramEnd 600 Ramp Temperature 600 Ramp Rate 600 /Hr Number OM-222 166 Number SoakSoak Function End Function Manual 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 Screen Cooler Power TC5 Current TC6 Voltage Frequency KHzParameters Cooler cannot be turned off while output is on Must 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 Output Disconnect power − MaintenanceRoutine Maintenance Before maintaining − Safety Precautions for Servicing Servicing Hazards California Proposition 65 Warnings − Diagnostics & Troubleshooting Operator Interface Indicators Run Status Limit ConditionsLimit Condition Codes Limit Condition Additional Information Fault 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 VBus Turn 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 Diagram 218 057-G − Parts List See Figure 11-313 11-2 Front 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