Transforming Tomorrow.

Transformingtomorrow.MANUFACTURING CO., INC.INDUSTRIAL CONTROLTRANSFORMERS

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MANUFACTURING CO., INC.Table of ContentsIndustrial Control Transformers .4Product Features .5Selection Process . 6Voltage Groups. 8Fusing Accessories.18Fusing Sizing Chart . 20Connecting Diagrams .22

PRODUCT FEATURESIndustrial Control TransformersSNC’s Industrial Control Transformers are specially designed to accommodate themomentary current inrush caused when electromagnetic components are energized.These transformers deliver excellent secondary voltage requirements and meet orexceed the standards established by UL and cUL. Their rugged construction and qualityelectrical characteristics ensure reliable operation of electromagnetic devices andtrouble-free performance.FINGER-SAFE TERMINALSTerminals are molded into the transformerfor extra durability and are finger safe.The deep terminal channels help preventshort circuits from stray wires.QUALITYMATERIALSHigh-grade silicon steellaminations and fine qualitycopper magnet wire reduce corelosses and ensure high efficiency.PRODUCT LABELAll SNC control power transformerscome labeled with power specifications,agency listings and manufacturingdate codes.MANUFACTURING CO., INC.4MOUNTING ADAPTORFOR FUSE BLOCKSIncluded on all transformersup to 3kVA.WIRING DIAGRAMAll SNC control powertransformers come withwiring diagrams for easeof installation.ENVIRONMENTALPROTECTIONRugged construction with fullyencapsulated windings protectthe transformer from harshenvironments for a long life.FLEXIBLE MOUNTINGHeavy gauge steel mounting foot ensuresa secure installation. Slotted holesallow for flexible mounting locations.

Product FeaturesEnclosed coils (50 - 5kVA). Completely encloses the transformer coilsto protect against moisture, dirt, dust and industrial contaminants formaximum protection in industrial environments.Finger-safe terminals integrally built in. Up to 30% greater terminalcontact area permits low-loss connections. Extra deep barriers reducethe chance of shorts from frayed leads or careless wiring. Pressure plateterminals designed to accept bare wire, ferrules, spade or ring lugs.Attractive black matte finish and easy to read labelwith complete wiring diagram.Terminals are molded into the transformer for a robust, compactdesign. A full quarter inch of thread on the terminal screws preventsstripping and pullout.Mounting plate is heavy gauge steel to add strength to coreconstruction and provide stability. Slotted mounting feet permiteasy and flexible installation.Two parallel jumper links come standard with transformers whenrequired so they can be wired for dual primary voltages.Class 130 C (226 F) insulation system with 55 C (131 F)temperature rise on 50 - 100VA.Class 130 C (226 F) insulation system with 80 C (176 F)temperature rise on 150 - 750VA.Class 180 C (356 F) insulation system with 115 C (239 F)temperature rise on 1000 - 5000VA.UL, cUL listed, CSA certified. CE listingavailable upon request.PRODUCT FEATURES INDUSTRIAL CONTROL TRANSFORMERS 5

SELECTION PROCESSTransformer Selection ProcessSelecting a transformer for industrial control circuit applications requiresknowledge of the following terms:Inrush VA is the product of load voltage(V) multiplied by the current (A) thatis required during circuit start-up. It iscalculated by adding the in-rush VArequirements of all devices (contactors,timers, relays, pilot lights, solenoids, etc.),which will be energized together. InrushVA requirements are best obtained fromthe component manufacturer.Sealed VA is the product of load voltage(V) multiplied by the current (A) afterinitial start-up or under normal operatingconditions. It is calculated by adding thesealed VA requirements of all electricalcomponents that will be energized atany given time. Sealed VA requirementsare best obtained from the componentmanufactuer. Sealed VA is also referredto as steady state VA.Primary Voltage is the voltage availablefrom the electrical distribution systemand its operational frequency, which isconnected to the transformer supplyvoltage terminals.Secondary Voltage is the voltagerequired for load operation which isconnected to the transformer loadvoltage terminals.INRUSH REGULATION DATA CHARTINRUSH VA @ 0.4 POWER FACTOR6Continuous VA TransformerNameplate Rating85% SecondaryVoltage90% SecondaryVoltage95% 0013500730030002550018250105005000750005600033000

Once the circuit variableshave been determined, transformerselection is a simple 5-step process.1Determine the application inrush VA by using thefollowing industry accepted formula:Application Inrush VA ((Inrush VA)² r (Sealed VA)²)2345Refer to the Regulation Data Chart. If the primaryvoltage is basically stable and does not vary by morethan 5% from nominal, the 90% secondary voltagecolumn should be used. If the primary voltage variesbetween 5% and 10% of nominal, the 95% secondaryvoltage column should be used.After determining the proper secondary voltagecolumn, read down until a value equal to or greaterthan the application inrush VA is found. In no caseshould a figure less than the application inrushVA be used.Read left to the Transformer VA Rating column todetermine the proper transformer for this application.As a final check, make sure that the Transformer VARating is equal to or greater than the total sealedrequirements. If not, select a transformer with a VArating equal to or greater than the total sealed VA.Refer to the following pages to determine the propercatalog number based on the transformer VA, andprimary and secondary voltage requirements.SELECTION PROCESS INDUSTRIAL CONTROL TRANSFORMERS 7

VOLTAGE GROUPSSNC Voltage GroupsSNC Industrial Control Transformers are available in a wide variety of primary and secondaryvoltages, many displayed below. If you do not see the voltages required for your application,contact us about a customized option.VOLTAGE TABLEGroupPrimarySecondaryVA SizesView Detalson PageA220 x 440, 230 x 460, 240 x 480110, 115, 12050 - 50009B240 x 4802450 - 7509C120 x 2402450 - 75010D115 x 2302450 - 50010E550, 575, 600110, 115, 12050 - 75011F208/27712050 - 75011G200/220/440, 208/230/460, 240/480110, 115, 12050 - 300012H230/460/57595/115150 - 500013I380/400/415110/22050 - 500013J200/208, 220/230/240, 440/460/48023 x 110, 24 x 115, 25 x 12050 - 50014K240 x 480120 x 24050 - 300015L240/230/220/208, 416/400/380,480/460/440, 600/575/550/500130/125/120/110,120/115/110/100, 99/95/91/8550 - 75015M220 x 440, 230 x 460,240 x 480110 x 120, 115 x 230,120 x 2401000 - 500016N240/347/380120 x 2401000 - 500016S6002450 - 50017T208/2772450 - 75017Image is a general representationof a typical SNC ControlTransformer without fusingaccessories or jumper links.Transformers 50VA - 350VAhave 4 terminals per side, andunits 500VA and higher have6 terminals per side.Top view8Side view

VOLTAGE GROUP A220 x 440, 230 x 460, 240 x 480 PRIMARY VOLTS 110, 115, 120 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 7.500.441.0089.0VOLTAGE GROUP B240 x 480 PRIMARY VOLTS 24 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 54.665.384.380.311.0628.1VOLTAGE CHARTS INDUSTRIAL CONTROL TRANSFORMERS 9

VOLTAGE GROUP C120 x 240 PRIMARY VOLTS 24 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 54.665.384.380.311.0628.1VOLTAGE GROUP D115 x 230 PRIMARY VOLTS 24 SECONDARY VOLTS 50/60 HzApproximate Dimensions and Weight10Mounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth .664.254.380.311.0615.75

VOLTAGE GROUP E550, 575, 600 PRIMARY VOLTS 110, 115, 120 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 06.130.311.0629.8VOLTAGE GROUP F208/277 PRIMARY VOLTS 120 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 54.665.384.380.311.0628.1Our custom transformers are helping power theU.S. Navy’s stealth destroyer, the Zumwalt.VOLTAGE CHARTS INDUSTRIAL CONTROL TRANSFORMERS 11

VOLTAGE GROUP G200/220/440, 208/230/460, 240/480 PRIMARY VOLTS 110, 115, 120 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingSNC Part #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 7.500.441.0089.0Automated manufacturing facilities around the worldare using SNC’s transformers for their reliability todeliver innovation and increase their speed to market.12

VOLTAGE GROUP H230/460/575 PRIMARY VOLTS 95/115 SECONDARY VOLTS 1Ø 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 03000P244309.009.007.627.257.500.441.0089.05000 *P2443110.009.008.738.257.500.441.00101.0*GEN I DesignVOLTAGE GROUP I380/400/415 PRIMARY VOLTS: 110/220 SECONDARY VOLTS 50/60HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 0628.1VOLTAGE CHARTS INDUSTRIAL CONTROL TRANSFORMERS 13

VOLTAGE GROUP J200/208, 220/230/240, 440/460/480 PRIMARY VOLTS 23 x 110, 24 x 115, 25 x 120 SECONDARY VOLTS 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 7.987.005.435.136.130.311.0638.0CUSTOM TRANSFORMERSSNC builds a wide variety of custom transformers fora broad range of industries to meet our customers’individual application requirements.To learn more, visit:www.sncmfg.com/custom-transformers14

VOLTAGE GROUP K240 x 480 PRIMARY VOLTS 120 x 240 SECONDARY VOLTS 50/60HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 7.500.441.0089.0VOLTAGE GROUP L240/230/220/208, 416/400/380, 480/460/440, 600/575/550/500 PRIMARY VOLTS130/125/120/110, 120/115/110/100, 99/95/91/85 SECONDARY VOLTS 1Ø 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 244386.216.385.654.006.130.311.0629.8VOLTAGE CHARTS INDUSTRIAL CONTROL TRANSFORMERS 15

VOLTAGE GROUP M220 x 440, 230 x 460, 240 x 480 PRIMARY VOLTS 110 x 120, 115 x 230, 120 x 240 SECONDARY VOLTS 1Ø 50/60 HzApproximate Dimensions and WeightMounting HoleDepthWidthShippingWeight (lbs.)VARatingPart #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 00.441.0089.0VOLTAGE GROUP N240/387/380 PRIMARY VOLTS 120 x 240 SECONDARY VOLTS 50/60HzApproximate Dimensions and WeightShippingWeight (lbs.)Part #Max.Depth (A)Max.Width (B)Max.Height (C)MountingDepth (D)MountingWidth 00.441.0089.0Notes:16Mounting HoleDepthWidthVARating· Jumper Link and Fuse ClipHt not included· Add 5/16" to the depthwhen fuse clips are included(50 thru 350VA)· Add 1/2" to the height whenfuse block is included (1, 2,and 3 poles) 500 thru 5000VA)· Add 1 3/8" to the height when fuseblock is included (1, 2, and 3 poles)(50 thru 350VA)