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Polemount Transformers
Polemounted transformers are the standard for single-phase and three-phase power distribution across much of the US. Maddox stocks many overhead type transformers for both large and small utility scale applications. Maddox specializes in selling polemount transformers to non-utility customers in the commercial and industrial space.
Capabilities
Maddox liquid-filled polemount transformers are designed, built, and tested in accordance with all applicable IEEE standards. Each unit is built to comply with the latest DOE efficiency regulations. They are ideal for utility applications requiring single-phase and three-phase distribution.
Product Scope
5 kVA–333 kVA
High voltages: 2,400 to 34,500 (up to 150 kV BIL)
Low voltages: 120/240, 240/480, 277
Technical Specs
Standard specs
Type II non-PCB mineral oil (ONAN)
65°C temp rise
Mild steel tank
Corrosion resistant paint finish
Lift points
LV side-mounted bushings
HV cover-mounted bushings
All standard tap configurations available
Grounding provisions
Anodized aluminum or stainless steel nameplate
ANSI 70 Gray paint color
Aluminum windings
Hanger brackets
Arrester mounting pads
Cover ground strap
Optional Features
HV taps (external lever handle or hook stick handle)
Dual voltage
Pressure relief device
Internal fuses
Switches
Secondary circuit breaker
Lightning arresters
Environmentally friendly, high fire-point FR3 oil
IFD (Internal Fault Detector)
Copper windings
Stainless steel tank
Transformer Ordering Made Easy
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 and your dedicated customer service rep will send you an order confirmation. | 03
Receive your transformer
We’ll handle all transportation and logistics. Maddox has the shortest lead times in the industry so you can get the power on when you need it. |
It was what our Team was looking for. We really appreciate the updates and customer service after placing the order
Mark R.
Couldn't ask for more! lt was easy to find theright product using the website. Purchasingonline was simple. Delivery was fast.
Krisopher W.
This product works fantastic for my office. lt isused to supply voltage for an EV charger andworks flawlessly
Jennifer M.
Get A Quote
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.