3 PHASE INDUCTION MOTOR HEATER. Figure 3 - Wiring Diagram for Single Phase 3 HP Motors NOTE: Single voltage (230V) motor, and cannot be connected to 115V. (I will call them main 1 and main 2) The way it is shown is strapped for 220 volts. Currently the Motor has two sets of 3 wires feeding it. Three-phase electric power (abbreviated 3φ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. 7. Inductive Proximity, Photoelectric, Capacitive. The problem is that the low voltage diagram has a brown wire attached to terminal #3, and for 230 it is to be insulated. It will only develop 2/3 of the 3-φ power rating because one winding is not used. If undersized wire is used between the motor and the power source, the starting and load carrying cap abilities of the motor will be. 3 Phase Contactor 32a Modular Towct Tongou. You must supply a disconnect switch, proper sized wire, enclosures, terminal blocks and any other devices needed to complete your circuit. If you are only using it for a safety not opening and closing under load it might hold up. Remove the protective cover and store it safely until its next use. Connect the Hot Wires. If performing on site, be sure to powe. The color scheme may vary depending on your location. Each line carries a different voltage and current, which is necessary for the proper operation of the various electrical components in the. 7 A = 2 kVA 1000 Three-Phase kVA = Load Volts x Load Amperes x. (1) The following links are pre-fitted to the. Watch till the end for my Tech Tip. Connect the two top terminals on the switch to the L1 and L2 connections in the motor's electrical enclosure. Figure 1 is a schematic diagram of a distribution transformer for 120/240 V. The outgoing hot wire from the 1-Pole. Then of course 3 capacitors. It's a SpeedAire 5F563 and I think a Dayton motor. Typically a 240 volt heater will have three wires in a junction box or connection area. Motor Wiring Diagram 12 Lead, Dual Voltage, Wye Start - Delta Run or Part Winding Start Motors designed by US Motors for Part-Winding Start may also be used for across the line starting using only the full winding connection. My whole point with my comments is that the name plate shows the motor as a 480/240 volt motor. It was tripping the breaker when starting. Wiring a 120/240 volt motor for 240 volts is as follows: A balanced electrical load which may save on electricity compared to an unbalanced electrical load. The basic requirements for 3 phase air compressor wiring include adding a nameplate for each engine, usually on the side or end of the engine. To do this, connect a Hot 1 (black color) from the 2-poles, 30 amp circuit breaker to the water heater element. Make sure the replacement motor may be wired for 220 volt single phase, the same as the existing air compressor circuit, paying close attention to the voltage and amperage which must be within the specs of the. All the videos I upload is to assist any individual with some thing they might of not know until watching one of these vid. The industry standard for metering 4 wire services call for the high leg to go on the right, or "C" phase while the code calls for the high leg to go on "B" phase on customers equipment. A contactor is a device that is used to switch electrical circuits on and off. In this case, that amount is 480 volts. 3 C rjpumps/ms110-220v2. My most sage advice is not only look at the diagram, yet understand how the components operate when within use. 4,5,6 are buried down in the peckerhead, all jumpered together. With the information you have provided in the question and even with the information that you added in a comment that. 0mm2 wire for up to 12kW, three phase 415V – 480V where the max current is 18. Wiring diagrams, sometimes called “main” or “construc- tion” diagrams, show the actual connection points for the wires to the components and terminals of the controller. All they are doing is taping off L1 to a circuit breaker to get their 120 volt control . control 120 volt electrical 480v power motor current diagrams 240v 120v circuit industrial wire acmeTransformer wiring diagram 480 to 240 480 volt 3 phase motor wiring. In order to achieve this, you can swap the connections on either end of the winding. Electrics induction motors use all three phases of the power, without any neutral wire. The first head nest start letter U --- (end nest) (one pole north) join end --- X terminal (one pole south) phase 1 north pole and south pole 180° elec grade. $egingroup$ If the motor has a label or metal plate attached to it or if you can find information from the manufacturer about connections and reverse operation you may find that reverse operation is possible and how to do that. It is still a three phase output device to control the three phase motors. Maximum 3 Phase Power = 200 x 415 x 1. Transformer 480v 240v 120v 110v single photocell hubs diagrams stepup wyeWiring 240v 480v 208 230v 208v compressor wellread 240volt capacitor bookingritzcarlton resources breaker corrente indotta leeson 2020cadillac sponsored Square d 75 kva transformer wiring diagram120 to 240. I need a 3 phase distribution transformer (10 -15 kva) to provide 120 volts power to appliances. Each of the two top terminals represents one of the opposite poles of the 220-volt power circuit, as do the two bottom terminals. It's a SpeedAire 5F563 and I think a Dayton motor. A 480v 3 phase motor wiring diagram is made up of 5 major components: conduit, switches, motors, capacitors and resistors. Recognized as a technical leader in its products and services, Franklin Electric serves customers around the world in residential, commercial, agricultural, industrial, municipal, and fueling applications. Over 20 years of development has resulted in a robust and durable phase converter capable of powering any load, from hard-starting motors to equipment. Longer life may be found due to a stronger motor, where as 120 volt motors may heat up more. The higher the voltage, the lower the. For 240 volt 1/2 hp motors (240 volt only), you should expect abot 6 ohms on the main winding, and 16 ohms on the starter winding. i need wiring diagrams for 3 phase, 240/480v, 12 lead, 75 hp. 240V outlets use two 120V wires simultaneously plus a neutral wire to power a single receptacle older homes and appliances may use three prong 240 volt outle. A 120/240 motor wiring diagram is an invaluable visual representation of this configuration. In three-phase motors 2 thermal switches connected in series are placed between the phases of the motor. 240 volt motors will have a stronger start compared to a 120 volt motor. (3- phase) Machinery Wiring Diagram for motor loads that total up to 3 times the maximum converter rated current. A hot wire and a neutral wire are used to transport current in these circuits. (3) The following links are pre-fitted to the starter; 13 - 17 with a flying lead to be connected to Overload terminal. A transformer can not act as a phase changing device and change single-phase into three-phase or three-phase into single phase. . File Type: JPG. 23. In this eBook, created in cooperation with SEW Eurodrive, we explain the AC voltage system as it applies to motors. The green wire coming out of that secondary output, is nothing more then a transformer core bond wire. This diagram will also include all of the safety measures and switches that should be in place to help protect the circuit and its components from damage. Testing: If at all possible, measure the current when you first turn it on and compare with the rated current. Other load voltages require a transformer after the three-phase panel. If they can’t, lubricate them. The load will slow the motor down. 73 to 1 Ratio Dual Voltage or WYE Start - DELTA Run on Low Volts: 453698 : Single Phase, Single Voltage, 4 Lead, Induction Generator:. I would guess that wiring for. Connect neutral to brown. To start, you'll need a 240 volt plug wiring diagram to ensure that you're connecting all the wires correctly. 7 cosφ 0. As shown in the following fig, we have two appliances viz three phase motor. When the switch is turned on, one phase on. (connect to green ground screw) Leeson Motor Wire Hook up Leeson Motor Wire Hook up Pitching Motor Wiring Diagram. com. Having a basic understanding of such diagrams can help determine potential issues that should be addressed before running the motor, and. Find which wire pairs belong together. How to wire a contactor and overload. either end to center has half the voltage of end-to-end. This video will show you how to wire up a 9 wire 3 phase motor to a 480 volt system. The machine has five wires, three of which are live. And according to the diagram: Low speed is L1-U1, L2-V1, L3-W1; U2, V2, W2 not connected, normally switch position 1. Wiring Diagram Sheets Detail: Name: 3 phase motor wiring diagram 12 leads – Wiring Diagram For The Motor New 6 Lead Motor Diagram Wiring Diagram Database. Table 11 Ratings for 120/240 V, 3-Wire, Single-Phase Dwelling Services101 Table 12 AWG and Metric Wire Data 102 Table 13 Electrical Formulas for Amperes, Horsepower, Kilowatts and KVA 103 Table 14 Ratings for 3-Phase, Single-Speed, Full-Voltage Magnetic Controllers for Nonplugglng and Nonjogging Duty 103 Table 15 Ratings for 3-Phase,. The disconnect box will have terminals labeled "L1," "L2" and "L3. motor load (hp) single phase 3 phase 120 v. 800. 4. (3- phase) Machinery (3- phase) Machinery 230 volt (three- phase panel) Off On NOTE: All wiring must be done by a licensed electrician. The electrical riser diagram shows 120/240 volt 3 phase. We begin with a comparison of single-phase (1-phase) and three-phase (3-phase) voltage applications but then illustrate the many ways in which 3-phase motors can be wired to accept high or low voltages, depending on the type of. 48 Kilowatts (KW) per Phase. 6 Single Phase Motor Connection Diagram. High performance ball bearings. Time-lapse of schematic diagram drawn into a wire diagram and the wiring of the magnetic motor starter. Identify the black power supply wire and connect it to the center terminal on the switch. 2wires the brushes. The motor has 3 wires coming out of it, then there are 3 I guess you would call them jumper wires. Single Phase Terminal Markings Identified By Color: (NEMA Standards) 1-Blue 5-Black P1-No color assigned. This switch has two positions, the "on" position and the "off". Step 1: Analyse Motor. But please consider your Inverter current (ampere) rating same rated or higher than motor FLA. Can the GFCI operate correctly without a load neutral connected to it. This directs the current through from L2 and directs it through the 3 rd phase on the contactor and overload (L3 & T3). Capacitor Start Capacitor Run Motor Wiring Diagram. Each of the three-phase wires connects to a specific motor lead. Thermal contacts (TB) white M 1~ Z2 - Yellow Z1 - Blue U2 - Black U1 - Red Bridge L1 and L2 if speed controller (S/C) is not required M 1~. My - Answered by a verified Electrician. Press RUN, the frequency rises to 50Hz. Location. This video discusses a 120/240V Three-Phase Four-Wire Delta System. The motor has 3 wires coming out of it, then there are 3 I guess you would call them jumper wires. I would guess that wiring for high voltage the motor would use all the windings and when wiring for low voltage it would only utilize half the windings. Dispenser. Three Phase Motor Connection STAR/DELTA Without Timer – Power & Control Diagrams. USA T12 T13 Single-Speed / Dual-Voltage Low Voltage (See Motor Nameplate) High Voltage (See Motor Nameplate) Connection DT72 SEW-Eurodrive, Inc. Three-phase motors use coils of wire to create magnetic fields and produce rotation. W2 mates to W5, V2 and V5, U2 to U5. Voltage Volts): 240V. Phase B, the “high” leg, is not. Ground – This is where the current returns to the power source. Motor Wiring Diagram U. Standard 3-phase motors use six individual coils, two for each phase. When dealing with an electric motor, understanding the wiring diagram is essential. The question I have relates to the capacitor wiring when there are 3 out of the motor and only 2 post on the cap. 4-3 Low. It is recommended to use a 3-phase motor + VFD. Read all the tech tips, take the quizzes and find our handy calculators at that two of these transformers are required. 3 Phase Motor Starters and Control Circuits. That is 3-phase motors for the 120/208-volt power systems. . 5 horsepower. HP is constant in this case. Make sure the appliance plug is attached properly. The 220-volt circuits as they were known prior to the 1960s are now commonly known as 240-volt circuits and 110-volt circuits are now 120-volt circuits. Most utilities will only provide a customer with one service or electrical system. You. As the power coming into most panels in the United States has two 120V lines that are 180 degrees out of phase (sometimes referred. The 480 Volt 3 Phase Wiring Diagram For Lights will likely have every one of the fuses and circuit breakers. Wiring Diagrams for Three-phase Motors. Brown = Phase 1 or Line. Three-phase voltage waveform. Two wiring configurations, Wye and Delta, indicate the wiring methods. S. How to wire a 3phase motor to single phase 240 volts with a capasitor. The starting sequence for the motor is as follows: 1. The neutral is paired to each of the single phase load. For instance , if a module will be powered up and it sends out a new signal of 50 percent the voltage and the technician does not know this, he would think he offers a problem, as he would expect a. Ground – Green, green with yellow stripe, or bare wire. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. A capacitor is wired in series with this coil and it has the effect of causing a shift in the phase of the current in the auxiliary winding relative to that of the main. The voltage you are seeing on the high leg should be closer to 208 (120 X 1. Three-phase. Use a capacitor rated for motor run use, or power factor correction capacitor (s). Maximum 1 Phase Power per Phase = 200 x 240. Cabinet has a vfd and it has a contactor with single phase 240v coil. Or maybe the centrifugal switch, for use with starting capacitor. You wire the two primaries in either series or parallel to suit the source voltage, and the secondaries in either series or parallel to suit the desired voltage increase or decrease. B. Click on your specific type of Baldor motor. Design Guide DG009004EN Effective November 2020 19 . created date: 11/12. Motors generate the electrical current that powers the equipment, while capacitors and resistors control the. 1 Three Wire Ceiling Fan Connection Diagram With Capactitor. Allan Atsu Ph: 306-693-0611 Cell: 306-690-2710Step-By-Step Instructions For Air Compressor Wiring Diagram 240v. White is the neutral wire and blue is the ground wire. You may find the latter arrangement to be less expensive than a 3 phase transformer. 5 horsepower; and ii) Three phase 120/208 volt, 15 horsepower; and iii) Three phase 347/600 volt, 40 horsepower. 75 Hz 50 V 220 A 5. If you have run the motor with with both jumper positions it it runs the same direction, I suspect an open capacitor. T1 and T2 are the corresponding motor out connections and should be carried through to the motor. 3. This type of diagram includes detailed information about the wiring of the motor and the components it is connected to. This system can be represented diagrammatically by both waveforms and a vector diagram (Figure 2). . In single-phase motors one single thermal switch is used. Connect the ground wire to the motor's ground terminal. Feeds a 3 phase 240v motor that says it draws 11 amps and a cooling fan that draws 1 amp. Three-Phase Wiring Diagrams Three-Phase Wiring Diagrams ALWAYS USE WIRING DIAGRAM SUPPLIED ON MOTOR NAMEPLATE colored leads are only applicable on the NEW ROLLED STEEL motor lines - Single-Phase Wiring Diagrams Single-Phase Wiring Diagrams ALWAYS USE WIRING DIAGRAM SUPPLIED ON MOTOR ALWAYS NAMEPLATE USE WIRING DIAGRAM SUPPLIED ON MOTOR NAMEPLATE This wiring diagram provides guidance on how to connect and distribute power in a 240 volt 3 phase system. Check power source. Connect a capacitor as shown to drive the 2nd phase. ALWAYS USE WIRING DIAGRAM. Motor: 1~. PNP vs NPN Sensors. To get 240V, we measured one of the phases and neutral, which. Three Phase Motor Connection STAR/DELTA Without Timer – Power & Control Diagrams. pdf E207 284TTFNA6026 A-EE7308 EE7308. It may also show any necessary circuit protection devices, such as fuses or circuit breakers. However, one transformer winding has a center tap connected to ground and provides 120/240-volts single-phase service along with the 3- phase service. AC80, AC90, AC100 single phase motors; 4 wire reversible PSC motor; AS-183 wiring diagram with switch. In the USA, there are some small industrial and commercial buildings that have 240 delta systems that have a grounded neutral in the center of one of the phases to provide 240/120 single phase. Follow. Wiring 220-volt boxes and motors is serious business. The neutral wire is shared by all currents returning from the customers’ premises to the supply transformer. Contactor 3 Pole 40 Amp 120 240 V Hog Slat. Well by code a 3 Hp motor 240v is 17 amps so it should be at least a 30A unless motor rated for 3hp. 2 Kva Transformer Primary 240x480 Secondary 120 240 Jefferson 411 0091 000. Three-phase, four-wire “Y” connection uses a “common. Select “Products” on the top left side of the screen. The new thermostat has three relay outputs: Hi, Med, Lo. Three- and six-wire three-phase motors offer versatility in their use. Post navigation. There are two main. 240 v. 240 v. Then switch to current (amps) display. Damage will occur if the motor is operated with load for more. Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. AC80, AC90, AC100 single phase motors; 4 wire reversible PSC motor with a triple pole double throw switch; AS-184 wiring diagram. If the motor has screw posts in the wiring box, there will be an extra screw post, not connected to anything, for connecting leads 2,3,5 together. Electric. How to Wire a 3 Phase Air Compressor; How is an air compressor wired and where do the wires go? Wiring a 3 Phase Motor for an Air Compressor, The Basic Requirements for Wiring Electric Motors, 3 Phase Motor Circuits. Size: 97. I thought it was the run. 1) Good to Remember: In both Star and Delta Connections, The total power on balanced load is same. 7. Three phase asynchronous motor is most common used motor in the world. In this video I will show you how to set up a 3 phase air compressor wire connection. is the 120/240-volt three-phase delta system used for combinations of 120-volt and 240-volt single-phase loads and 240-volt three-phase loads. Starting & Stopping of 3-Phase Motor from more than One Place Power & Control diagrams. The motor is straight 230 vac , 3 phase . The circuit size is determined by the required electrical load of the heater which is measured in watts or amps. This article looks at some common windings and wirings for three-phase motors, including internal Wye windings and low and high voltage wirings. Look for the largest deflection between lead #3 and the other two wires. The standard for USA industrial use is 480 V, 3-phase. earthing/grounding wire. Features. . Achieving this level of control requires the use of specialized control techniques. The manual indicates: The equipment is designed for 3 phase 230V power supply (Between each hot wire, 220 volts can be measured) when 2 phases are connected. Ac Sd Controller 3 Phase Motor Wiring Diagram Leeson. Also if you are in North America, that motor will spin 20% (6/5). In this case, high-voltage connections are the same as for delta motors. These diagrams provide information on how to wire the motor and its terminals. 277/480 Volt, 3 Phase, 4-Wire. To properly read a cabling diagram, one has to learn how the components within the method operate. Wiring Diagram Sheets Detail: Name: 3 phase motor wiring diagram 12 leads – Wiring Diagram For The Motor New 6 Lead Motor Diagram Wiring Diagram Database. TECHNICAL SS1905 THERMAL PROTECTION NORMALLY CLOSED THERMAL CUT-OFF 575 Volt Three Phase Electric Motors 575 V 60 Hz 575 V WIRING DIAGRAM GENERAL SPECIFICATIONS: 1. I. If performing on site, be sure. A 4 wire 240 volt diagram contains four colored wires: black, red, blue, and white. For a 1/2 hp 120 volt motor, the main winding will typically have about 1. For example, if the power. When plugging the motor I hear a humming sound and I have to hand turn the shaft to make it rotate (any direction). Most three-phase electric motors use an internal arrangement of coils that defines them as either Wye or Delta, and this is established by the manufacturer. Likewise, for Phase 3, W ----- Z. Doing voltage drop at 480V appeals to me. The supply voltage is either 240 volts alternating current (VAC) or 480 VAC. Then of course 3 capacitors. 48,000 Volt Amps (VA) per Phase or. Check Details. To solve the problem an auxiliary, usually weaker, winding is added to the motor and it is offset from the main coil by, say, 30°. Conduit protects all other components of the wiring assembly while switches regulate the flow of electricity. The net output or efficiency of the motor is reduced 2/3rd of its rated capacity. In a 240 volt 3 phase system, there are three separate phases, or legs, of power. Although the drop in the voltage may not be exactly 20V, it will be within that range. The inverter input power supply is single phase 240V and it will convert to 3 phase output to your motor. Note that two of these transformers are required. 732. For a ground terminal connection, loosen the green ground screw and wrap the green ground wire around it. ER 6, 7 OFSU146 Diag. total power in a Three Phase. Read the particular schematic like a roadmap. I need a 3 phase distribution transformer (10 -15 kva) to provide 120 volts power to appliances. To reverse rotation on a single phase capacitor start motor, you will need to reverse the polarity of the starter winding. It is a type of polyphase system and is the most common method used by electric grids worldwide to transfer power. Input: 240v single phase or 415v 3 phase. Two-Speed, Two-Direction Operation. The remaining circuit or circuitsThe best wire size for 240 Volts is 10 AWG. For example, if the power. kVA capacity remains constant. The single phase induction motor is similar. All service calls, no matter how minor, should include a complete wiring check, beginning with the building breaker. 480 volt 3 phase 12 lead motor wiring diagram / wiring diagrams w. It is simple enough to interface these to the motor, but. I have two old, and clearly blown capacitors and two new replacements. We would like to show you a description here but the site won’t allow us. In the above diagram, the alternator is connected to the load by three phase four. 3phase Air Compressor Wire Connection,how to wire 3 phase air compressor. Thermally protected L Type. Of all types, the twelve-wire motor provides the most options for connecting based on voltage and system configuration (wye or delta). Model : 4H07M22/A. The compressor: The 3 wires coming out of the motor: The 3 capacitors and 3 "jumpers": Does anyone know how these should hook up?Once the three-phase induction motor started on a single-phase supply, it continuously runs on reduced capacity. single phase power is the consistency of the delivery of power. Tighten the screws on the contact blocks. Wiring diagram motor hoist 120 240 boat wire budgit lift phase volt switch electrical connections 120v dock harness box tecWiring phase motor diagram single 240v reverse forward fresh pretty capacitor electric smith ao Wiring forward 240v motor diagram schematic procedure develop developing basic same used240v motor wiring diagram. (OPTION A). 120/240 Volt, 3 Phase, 4-Wire. Faster starting power. 144 KW Kilowatts. One is 70uF the other is 55uF. This wiring diagram provides guidance on how to connect and distribute power in a 240 volt 3 phase system. To properly read a cabling diagram, one has to learn how the components within the method operate. To wire the motor for 240 volts, connect lead 1 to one power lead. The simplest three-phase system is the 3-wire Delta configuration, normally used for transmission of power in the intermediate voltage class from approximately 15,000 volts to 600 volts. Baldor Motor Wiring Diagram 3 Phase Source: static-resources. Model : 4H07M22/A. Close the motor's wiring box. i need wiring diagrams for 3 phase, 240/480v, 12 lead, 75 hp a/c industrial motors! (high. And they seem to be. This creates a single phase system. Figure 7: 230-volt operation of a delta-configured dual-voltage 230/460 VAC three-phase AC induction motor. Three sets of contacts (R, S, and Y) serve to connect power to the motor at different times. If we draw a circuit showing each voltage source to be a coil of wire (alternator or transformer winding) and do some slight rearranging, the “Y” configuration becomes more obvious in Figure below. Use VFD to control single phase motor speed, the VFD's phase-loss function must be disabled, by setting P9-13 to 0, and then start to commissioning. 240v Motor Wiring Diagram Single Phase - Free Wiring Diagram. MultiMotors System. It may be hand started in either direction, coming up to speed in a few seconds. When load exceeds from 7. To configure a 208V AC system, you need phase 1 (Black), phase 2 (Red), phase 3 (Blue), neutral (white), and ground wires. Parallel Delta 127 133 139 230 240 277 Series 3, 28, 31, 32, 34, 38, 40 (1S, 2S, 1L, 2L) Series 40 (3S, 1,5L, VL), 43, 46 Single Phase Double Delta Zig-Zag Single Phase Parallel Zig-Zag. The wiring diagram for a 240 volt 3 phase system typically includes the main power supply, the circuit breaker panel, and the distribution panel. Probably like this: simulate this circuit – Schematic created using CircuitLab. Thanks. L1 L2 IL1680 230 VOLT SINGLE PHASE LINE YELLOWBLACKREDWHITEGRAYGRAY NOTE: Dual voltage motor, change the red and gray wire to voltage required. Loosen the screw. Six wire three-phase electric motors are dual voltage motors. Wiring 208v 120v 240v nec iec electricaltechnology3 phase plug wiring diagram 480v 3 phase 6 lead motor wiring diagramDigital 3 phase. Ac Motor Speed Picture: Century Ac Motor Wiring. You will need a diagram to Track down the box. For example, AC or DC then click “Overview” to display the motor types. The motor has a split stator coil that allows for 120V or 240V connection. In the US 120 / 240V 1 Phase 3 Wire is the standard for homes and 240V 3. It may also show any necessary circuit protection devices, such as fuses or. 1. 3 Phase Motor Contactor Wiring Diagram Guide Springer Controls. The same is explained in 3-Phase Circuit MCQs with explanatory Answer (MCQs No. Download Article. 3-Orange 7-No color assigned. 3 phase 480 to 240 transformer wiring diagram – easy wiringWiring diagram phase 480v transformer three he wire surge protection 240v 480 volt 3 phase motor wiring / 12 lead motor 240 480 conversion mike. (For 2 Phase, 3 Wire, L2 and T2 are common) Sgl. Three- and six-wire three-phase motors offer versatility in their use. Try to test run the appliance to make sure that it is working properly. Two chief sections of the engine are both rotor and stator. See moreThis video will show you how to wire up a 9 wire 3 phase motor to a 3 phase 240 volt system. be careful. short answer: it's because the two, 180 degrees out of phase, feed wires essentially take turns being the return wire every time the phase switches. how to wire a 1 hp single phase 120 volt baldor motor when i wire up a 1hp sigle phase baldor i conect the 135 and 248 together the motor runs but starts getting. 56 KB. No change to the external wires leads will be able to change the voltage compatibility of the motor. Below is a data sheet, courtesy of Arrowhead Electric, showing typical wiring diagrams for this type of 3-terminal Klixon overload protector switch. especially those equipped with an electric motor, simply run more efficiently with a 240 volt power supply. I would think start, run, common.