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Three Phase Pad Mount Transformers

OMEX Pad Mount Transformers are constructed to the highest quality standards. We design and manufacture our transformers as per ANSI, IEEE, DOE and UL Standards (as applicable).

We can also provide UL Transformers as requested. We have capabilities to produce any custom product up to 10000 KVA. We can also provide reconditioned transformers for budgetary projects.

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3 Phase Pad Mounted Transformers
S.No PRODUCT CODE Description DOCUMENTS/PDF
1 500kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
500kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
2 750kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
750kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
3 1000kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
1000kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
4 1250kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
1250kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
5 1500kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
1500kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
6 1750kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
1750kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
7 2000kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
2000kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
8 2250kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
2250kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
9 2500kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
2500kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
10 2750kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
2750kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
11 3000kVA-12000D480Y-3PH-ONAN-MS-PM-L Datasheet
3000kVA,3Phase,60 Hz, ONAN, 12000 D - 480 Y /277
Pad Mounted Transformer
12 500kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
500kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
13 750kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
750kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
14 1000kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
1000kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
15 1250kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
1250kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
16 1500kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
1500kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
17 1750kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
1750kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
18 2000kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
2000kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
19 2250kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
2250kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
20 2500kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
2500kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
21 2750kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
2750kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
22 3000kVA-12470D480Y-3PH-ONAN-MS-PM-L Datasheet
3000kVA,3Phase,60 Hz, ONAN, 12470 D - 480 Y /277
Pad Mounted Transformer
23 500kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
500kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
24 750kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
750kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
25 1000kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
1000kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
26 1250kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
1250kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
27 1500kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
1500kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
28 1750kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
1750kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
29 2000kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
2000kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
30 2250kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
2250kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
31 2500kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
2500kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
32 2750kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
2750kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
33 3000kVA-13200D480Y-3PH-ONAN-MS-PM-L Datasheet
3000kVA,3Phase,60 Hz, ONAN, 13200 D - 480 Y /277
Pad Mounted Transformer
34 500kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
500kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
35 750kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
750kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
36 1000kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
1000kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
37 1250kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
1250kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
38 1500kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
1500kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
39 1750kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
1750kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
40 2000kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
2000kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
41 2250kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
2250kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
42 2500kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
2500kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
43 2750kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
2750kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
44 3000kVA-13800D480Y-3PH-ONAN-MS-PM-L Datasheet
3000kVA,3Phase,60 Hz, ONAN, 13800 D - 480 Y /277
Pad Mounted Transformer
45 500kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
500kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
46 750kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
750kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
47 1000kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
1000kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
48 1250kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
1250kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
49 1500kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
1500kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
50 1750kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
1750kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
51 2000kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
2000kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
52 2250kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
2250kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
53 2500kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
2500kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
54 2750kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
2750kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
55 3000kVA-14400D480Y-3PH-ONAN-MS-PM-L Datasheet
3000kVA,3Phase,60 Hz, ONAN, 14400 D - 480 Y /277
Pad Mounted Transformer
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OMEX tamper-proof, compartmentalized, liquid-filled, pad-mounted (or padmount for short) transformers are all-in-one units designed, built, and tested in accordance with the highest industry standards and can be customized with over-current protection, and sectionalized switching to give you maximum control over your distribution system.


Product Scope
  • 30 kVA - 10,000 kVA
  • Up to 35,000v

Technical Specs

Standard specs
  • Type II non-PCB mineral oil (ONAN)
  • High-grade silicon-steel core
  • Aluminum windings
  • Pad-lockable door handle
  • No-load tap changer
  • Impedance 5.75 % (±7.5%)
  • Reinforced carbon steel tank
  • Lifting lugs
  • Externally clamped high- and low-voltage bushings
  • Pressure relief valve
  • Pressure vacuum gauge
  • Liquid temp gauge
  • Liquid level gauge
  • Drain and sample valve
  • Schrader valve
  • Ground pads/lugs
  • Nitrogen blanket
  • 65 degree C rise
Optional specs
  • Environmentally friendly, high fire-point FR3 oil (KNAN)
  • Copper windings
  • Key interlock provisions
  • Stainless steel tank
  • Gauges with contacts
  • Externally accessible drain and sample valve
  • External gauge package
  • Lid-mounted pressure relief device
  • Sudden pressure relay
  • Lightning arresters
  • Viewing windows in cabinet
  • 55/65 degree C rise
  • Step-up solar and wind duty design
  • Electrostatic shielding
  • K-rated design

01

Request a Quote

Call or fill out the form below to get a quote. Most quotes are turned around the same or next-day.

02

Place your order

Send us a purchase order, or give us a credit card number, and your dedicated customer service rep will send you an order confirmation and answer any questions you may have.

03

Get your transformer

We’ll handle all transportation and logistics. OMEX has the shortest lead times in the industry so you can get the power on when you need it.

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Fill out the form and a member of our team will get back to you as soon as possible. Our average response time during business hours is 30 minutes.