For Superior Design, Competitive Pricing And Reliable Service, Contact "The Transformer Specialists" At SNC.

Since 1946, SNC Manufacturing Has Taken Pride In Our Ability To Produce Transformers And Magnetics In Virtually Any Size, Configuration Or Quantity.

Industrial Control Transformers

  •  Control Transformer Base Unit
    Control Transformer Base Unit
  • Control Transformer with F2 primary fusing
    Control Transformer with F2 primary fusing
  • F4 secondary fuse block holder on SNC Control Transformer allows easy factory or field installation of fuses/contactors
    F4 secondary fuse block holder on SNC Control Transformer allows easy factory or field installation of fuses/contactors

SNC single-phase Industrial Control Transformers are designed for applications where electromagnetic devices such as relays, solenoids, contactors, etc. are used. When electromagnetic devices are energized, SNC Industrial Control Transformers offer increased operator safety by protecting control components from power surges and help steady the voltage while the inrush current is occurring.

SNC Manufacturing’s Control Transformers can be custom designed to meet a wide range of OEM requirements for primary and secondary voltages, power ratings and line frequency…25 to 5,000 VA – up to 600V @ 25 to 60Hz.

(To view over 50 Control Transformer engineering drawings by part number, please scroll down page.)

Designed to meet NEMA ST-1 inrush VA regulations, SNC’s new Control Transformers allow for easy factory or field installation of fuses/contactors and provide a variety of mounting features to meet individual application requirements.

  • Finger-safe terminals on all models. Finger-safe primary and secondary fusing available.
  • Pre-wired primary and secondary fuse blocks mounted on top of unit. Secondary fuse clips also available.
  • VA from 25 VA to 5 KVA.
  • Temperature rise through 100VA: 55°C, through 750VA: 80°C, through 5KVA: 115°C.
  • Standard voltage regulation as low as 5% max.
  • Rugged construction with totally enclosed windings
  • Transformer designs can accommodate full current 24v windings and all variations of extended windings.
  • Enclosed coil through 350 VA provides additional protection against contamination.
  • Transformers available in NEMA 1 and NEMA 12 enclosures.
  • UL and cUL listed. CE listing available on request.

SNC Industrial Control Transformers

Pricing based on basic transformer with any primary/secondary combination at 50/60 Hz and a maximum of four input and four output terminals. Fuse block options: secondary, primary, secondary/primary. Minimum quantities apply to a specific transformer rating. Typical in-stock availability results in near "transit" lead times. Individual unit packaging cost to be developed.  

SNC 25 to 350 VA Control Transformers
SNC 500 to 5000 VA Control Transformers

SNC Industrial Control Transformers-Physical Characteristics

Primary Voltage Available Up to 600 Volts

Secondary Voltage – 120 to 600 Volts

(Approximate Dimensions)

VAABCDESLOT FWGT
50*3.2283.000***2.5382.0002.5000.203 x 0.3752.6
75*3.7283.000***2.5832.5002.5000.203 x 0.3753.5
100*4.2283.000***2.5832.3752.8130.203 x 0.3754.2
150*4.1833.750***3.2082.8753.1250.203 x 0.3756.7
200*3.9574.500***3.8332.5003.7500.203 x 0.3758.5
250*4.4574.500***3.8332.8753.7500.203 x 0.37510.0
300*4.4574.500***3.8333.2503.7500.203 x 0.37511.3
350*4.4574.500***3.8333.7503.7500.203 x 0.37513.6
5005.5005.250**5.5304.2504.3750.313 x 0.68819.2
7507.0005.250**5.5305.7504.3750.313 x 0.68828.1
10005.1256.375**6.4685.2505.7500.313 x 0.68829.8
15006.1256.375**6.4686.2505.7500.313 x 0.68830.0
20006.8756.375**6.4687.0005.7500.313 x 0.68838.0
30006.5009.000**8.8755.5008.0000.438 x 0.75053.0
50007.5009.000**8.8756.5008.0000.438 x 0.75089.0

SNC Industrial Control Transformers-Physical Characteristics

Primary Voltage Available Up to 600 Volts

Secondary Voltage – 12 to 24 Volts

(Approximate Dimensions)

VAABCDESLOT FWGT
50*3.7283.000***2.5382.0002.5000.203 x 0.3753.5
75*4.2283.000***2.5832.3752.8130.203 x 0.3754.2
100*4.1833.750***3.2082.8753.1250.203 x 0.3756.7
150*4.1833.750***3.2082.8753.1250.203 x 0.3758.0
250*4.4574.500***3.8332.8753.7500.203 x 0.37510.0
350*5.1864.500***3.8333.5003.7500.203 x 0.37513.6
5007.0005.250**5.5305.7503.8750.313 x 0.68820.0
7507.0005.250**5.5305.7503.8750.313 x 0.68823.2
10007.0005.250**5.5305.7504.3750.313 x 0.68828.1

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

SNC Industrial Control Transformer Regulation Table

(Inrush VA At 0.4 Power Factor)

TransformerSecondary Voltage
KVA Rating85%90%95%
2513811083
50220184144
75342283220
100518415304
1501015788540
2001238971684
250213816241067
300224417021122
350363026401540
500351027501.92
750662849723207
1000891061603300
150017600132007260
200021450148508030
3000280502997511550
5000825006160036300

SNC Industrial Control Transformer Standard Voltages

110/115/120 110/23, 115/24, 120/25 115/120/110 110/115/120 24
(50/60 Hz)   (50/60 Hz)   (50/60 Hz)   (50/60 Hz)   (50/60 Hz)
220 x 440   440/220/200   460/230/208   550/575/600   120 x 240
230 x 460   460/230/208   480/240        
240 x 480   480/240   440/220/200        

SNC Manufacturing Industrial Control Transformer Primary Standard Fuse Rating

VA/Voltage120208230240277380416440460480550600
250.60.30.30.30.250.250.250.250.250.250.250.25
451.130.60.50.50.40.30.30.30.30.250.250.25
501.250.750.60.60.50.40.30.30.30.30.250.25
751.810.80.80.80.60.50.50.40.40.40.3
1002.51.41.31.2510.750.750.60.60.60.50.5
1503.521.81.81.61.125110.80.80.80.75
2503.23.53.232.51.81.81.61.61.51.31.25
300443.53.53.22.25221.81.81.61.5
3504.554.543.52.52.52.252.2521.81.6
5006.2543.53.253.53.53.23.232.52.5
750106554.55.6554.54.543.5
100015876.256443.53.53.255
150017.512121096.2565.6554.54
20002512151512887.576.2565.6
3000302017.517.515151212121098
5000 3030302517.5151515151215

SNC Manufacturing Industrial Control Transformer Secondary Standard Fuse Rating

VA/Voltage12248590100110115120125130
253.21.60.50.40.40.30.30.30.30.3
45630.80.80.750.60.60.60.60.5
506.253.20.80.80.80.750.750.750.60.6
751051.41.41.251.1251110.8
100156.251.81.81.61.51.41.41.31.25
15017.5102.82.52.52.252221.8
25030154.54.543.53.53.23.23.2
3003517.55.65.654.54443.5
35040206.256.255.6554.54.54.5
500503010987.576.256.256.25
750 401515121212101010
1000 501515121215151515
1500  25252017.517.517.51515
2000  3030252525252020
3000  4545403535353030
5000  5050505050505050

220X440, 230X460, 240X480 110/115/120 50/60 Hz

 

 

VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
P22585BA050DMF50*3.2283.000***2.5832.0002.5000.2030.3752.6
P22426BA075DMF75*3.7283.000***2.5832.5002.5000.2030.3753.5
P22427BA100DMF100*4.2283.000***2.5832.3752.8130.2030.3754.2
P22428BB150DMF150*4.1833.750***3.2082.8753.1250.2030.3756.7
P22645BB200DMF200*3.9574.500***3.8332.5003.7500.2030.3758.5
P22429BB250DMF250*4.4574.500***3.8332.8753.7500.2030.37510.0
P22646BB300DMF300*4.4574.500***3.8333.2503.7500.2030.37511.3
P22430BB350DMF350*5.1864.500***3.8333.7503.7500.2030.37513.6
P22431AB500DMF5005.5005.250**5.5304.2504.3750.3130.68819.2
P22432AB750DMF7507.0005.250**5.5305.7504.3750.3130.68828.1
P22433AH1K0DMF10005.1256.375**6.4685.2505.7500.3130.68829.8
P22434AH1K5DMF15006.1256.375**6.4686.2505.7500.3130.68830.0
P22435AH2K0DMF20006.8756.375**6.4687.0005.7500.3130.68838.0
P22436AH3K0DMF30006.5009.000**8.8755.5008.0000.4380.75053.0
P22437AH5K0DMF50007.5009.000**8.8756.5008.0000.4380.75089.0

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

440/220/200, 460/230/208, 480/240 110/23, 115/24, 120/25 50/60 Hz

 

 

VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
P22466BA050CLF50*3.7283.000***2.5832.5002.5000.2030.3753.5
P22467BA075CLF75*4.2283.000***2.5832.3752.8130.2030.3754.2
P22468BA100CLF100*4.1833.750***3.2082.8753.1250.2030.3756.7
P22469BB150CLF150*4.1833.750***3.2082.8753.1250.2030.3758.0
P22470BB250CLF250*4.4574.500***3.8332.8753.7500.2030.37510.0
P22471BB350CLF350*5.1864.500***3.8333.5003.7500.2030.37513.6
P22472AB500CLF5007.0005.250**5.5305.7503.8750.3130.68820.0
P22473AB750CLF7507.0005.250**5.5305.7503.8750.3130.68823.2
P22474AB1K0CLF10007.0005.250**5.5305.7504.3750.3130.68828.1

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

460/230/208, 480/240, 440/220/200 115,120,110 50/60HZ

 


VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
P22612CB750CMF7507.0005.250**5.5305.7504.3750.3130.68828.1
P22613AB1K0CMF10005.1256.375**6.4685.2505.7500.3130.68829.8
P22614AB1K5CMF15006.1256.375**6.4686.2505.7500.3130.68830.0
P22615AB2K0CMF20006.8756.375**6.4687.0005.7500.3130.68838.0
P22617AB3K0CMF30006.5009.000**8.8755.5008.0000.4380.75053.0
P22618AB5K0CMF50007.5009.000**8.8756.5008.0000.4380.75089.0

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

550/575/600 110/115/120 50/60 Hz


VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
P22446BA050EMF50*3.2283.000***2.5832.0002.5000.2030.3752.6
P22447BA075EMF75*3.7283.000***2.5832.5002.5000.2030.3753.5
P22448BA100EMF100*4.2283.000***2.5832.3752.8130.2030.3754.2
P22449BB150EMF150*4.1833.750***3.2082.8753.1250.2030.3756.7
P22450BB250EMF250*4.4574.500***3.8332.8753.7500.2030.37510.0
P22451BB350EMF350*5.1864.500***3.8333.5003.7500.2030.37513.6
P22452AB500EMF5005.5005.250**5.5304.3134.3750.3130.68816.8
P22453AB750EMF7507.0005.250**5.5305.7504.3750.3130.68828.1

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

120X240 24 50/60HZ

 

 

VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
P22458BA050ASF50*3.2283.000***2.5832.0002.5000.2030.3752.6
P22459BA075ASF75*3.7283.000***2.5832.5002.5000.2030.3753.5
P22460BA100ASF100*4.2283.375***2.5832.3752.8130.2030.3754.2
P22461BB150ASF150*4.1833.750***3.2082.8753.1250.2030.3756.7
P22462BB250ASF250*4.4574.500***3.8332.8753.7500.2030.37510.0
P22463BB350ASF350*5.1864.500***3.8333.7503.7500.2030.37513.6
P22464AB500ASF5005.5005.250**5.5304.3134.3750.3130.68816.8
P22465AB750ASF7507.0005.250**5.5305.7504.3750.3130.68828.1

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

240X480 24 50/60HZ


VASNC's Dimensions
SNC Part No.SNC   Model   No.Max DthMax WthMax HtMounting DepthMounting Width
Mounting HoleWeight 
  +/-0.010+0.125,-0.000+0.250,-0.000DepthWidth
 Fuse Clip Ht not included
 









P22438BA050ASF 50*3.2283.000***2.5832.0002.5000.2030.3752.6
P22439BA075ASF 75*3.7283.000***2.5832.5002.5000.2030.3753.5
P22440BA100ASF100*4.2283.375***2.5832.3752.8130.2030.3754.2
P22441BB150ASF150*4.1833.750***3.2082.8753.1250.2030.3756.7
P22442BB250ASF250*4.4574.500***3.8332.8753.7500.2030.37510.0
P22443BB350ASF350*5.1864.500***3.8333.7503.7500.2030.37513.6
P22444AB500ASF500 5.5005.250 **5.5304.3134.3750.3130.68816.8
P22445AB750ASF750 7.0005.250 **5.5305.7504.3750.3130.68828.1

Note:

*Add 5/16" to the Depth when fuse clips are included

**Add 1/2" to the Height when fuse block is included (1, 2, and 3 poles)

***Add 1 3/8" to the Height when fuse block is included (1, 2, and 3 poles)M

SNC MFG Transformer Dr.

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Welcome to SNC

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SNC RFQ Form

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