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Transformers

Reliable Electrical Transformers for Power Conversion

Find the right electrical transformer to step voltage up or down safely and efficiently. We carry new and reconditioned transformers from leading brands like Square D, GE, Cutler-Hammer, and more—ideal for industrial, commercial, and facility upgrades.

Our inventory includes dry-type and general-purpose transformers in a variety of kVA ratings, voltage configurations, and mounting options. Each unit is tested for performance, reliability, and safety compliance before it reaches your door.

Need guidance choosing the right transformer? Our knowledgeable team is here to help with fast, expert support.

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Square D QHB120 Circuit Brekaer 20A 1P 120/240V 65kA Bolt On 20 Amp 1 Pole QOB New

Square D QHB120 Circuit Brekaer 20A 1P 120/240V 65kA Bolt On 20 Amp 1 Pole QOB New

$45.00

$45.00

Square D QHB125 Circuit Brekaer 25A 1P 120/240V 65kA Bolt On 25 Amp 1 Pole QOB New

Square D QHB125 Circuit Brekaer 25A 1P 120/240V 65kA Bolt On 25 Amp 1 Pole QOB New

$120.00

$120.00

Square D QOB330VH Circuit Breaker 30A 3P 240V 22kA 30 Amp 3 Pole Bolt On New

Square D QOB330VH Circuit Breaker 30A 3P 240V 22kA 30 Amp 3 Pole Bolt On New

$175.00

$175.00

Square D NF Panelboard 100A 480/277V 3PH 4W 30 Cir MCB 3R Encl Outdoor Main EGB34100 Used

Square D NF Panelboard 100A 480/277V 3PH 4W 30 Cir MCB 3R Encl Outdoor Main EGB34100 Used

$2,850.00

$2,850.00

Eaton PRL4 Panelboard 800A 208/120V 3PH 4W MCB Main MDL3800 Indoor Encl BX3673 Used

Eaton PRL4 Panelboard 800A 208/120V 3PH 4W MCB Main MDL3800 Indoor Encl BX3673 Used

$7,200.00

$7,200.00

Siemens S5E90ML800ATS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

Siemens S5E90ML800ATS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

$4,800.00

$4,800.00

Siemens S5E90ML800ABS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

Siemens S5E90ML800ABS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

$4,800.00

$4,800.00

Siemens S5E90LM700ATS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

Siemens S5E90LM700ATS S5 Panelboard 800A 480/277V 3PH 4W MLO Indoor Encl B890 Box Used

$4,800.00

$4,800.00

Siemens SB Switchboard 2000A 480/277V 3PH 4W MLO Indoor Encl 2000 Amp Used

Siemens SB Switchboard 2000A 480/277V 3PH 4W MLO Indoor Encl 2000 Amp Used

$9,250.00

$9,250.00

Square D QOB3100VH1021 Circuit Breaker 100A 3P 240V 22kA Shunt Trip 100 Amp New

Square D QOB3100VH1021 Circuit Breaker 100A 3P 240V 22kA Shunt Trip 100 Amp New

$1,010.00

$1,010.00

Square D QOB220VH Circuit Breaker 20A 2P 120/240V 22kA 20 Amp 1 Pole New

Square D QOB220VH Circuit Breaker 20A 2P 120/240V 22kA 20 Amp 1 Pole New

$65.00

$65.00

Square D QHB220 Circuit Breaker 20A 2P 120/240V 65kA QOB 20 Amp 2 Pole New

Square D QHB220 Circuit Breaker 20A 2P 120/240V 65kA QOB 20 Amp 2 Pole New

$185.00

$185.00

Square D HCP I-Line Panelboard 1200A 480/277V 3PH 4W 30Cir MLO Indoor Encl HC4259DB Used

Square D HCP I-Line Panelboard 1200A 480/277V 3PH 4W 30Cir MLO Indoor Encl HC4259DB Used

$8,500.00

$8,500.00

112.5kVA Siemens 3F3Y112 Transformer 3PH Pri 480V Sec 208/120V Indoor ST100 Used

112.5kVA Siemens 3F3Y112 Transformer 3PH Pri 480V Sec 208/120V Indoor ST100 Used

$2,250.00

$2,250.00

Siemens S4 S4E60ML400ATS Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl B60 Used

Siemens S4 S4E60ML400ATS Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl B60 Used

$2,500.00

$2,500.00

Siemens S4E60ML400ATS S4 Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl B60 Used

Siemens S4E60ML400ATS S4 Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl B60 Used

$2,500.00

$2,500.00

CH PRL4 Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl BX2457 Box Used

CH PRL4 Panelboard 400A 480/277V 3PH 4W MLO Indoor Encl BX2457 Box Used

$2,500.00

$2,500.00

Square D I-Line Panelboard 600A 480/277V 3PH 4W 48Space MCB MAP36600 Indoor Encl HC3291B Used

Square D I-Line Panelboard 600A 480/277V 3PH 4W 48Space MCB MAP36600 Indoor Encl HC3291B Used

$4,500.00

$4,500.00

Square D HCM I-Line Panelboard 800A 480/277V 3PH 4W 66 Space MLO Indoor Encl HC3291B Used

Square D HCM I-Line Panelboard 800A 480/277V 3PH 4W 66 Space MLO Indoor Encl HC3291B Used

$4,800.00

$4,800.00

Square D NQ Panelboard 250A 208/120V 3PH 4W 42 Cir MCB Indoor Encl MH68 Used

Square D NQ Panelboard 250A 208/120V 3PH 4W 42 Cir MCB Indoor Encl MH68 Used

$1,500.00

$1,500.00

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir MLO Indoor Encl MH74 Used

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir MLO Indoor Encl MH74 Used

$2,500.00

$2,500.00

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir MLO Indoor Encl MH74 Used

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir MLO Indoor Encl MH74 Used

$2,500.00

$2,500.00

Square D NQ Panelboard 250A 208/120V 3PH 4W 72 Cir MLO Indoor Encl MH80 Used

Square D NQ Panelboard 250A 208/120V 3PH 4W 72 Cir MLO Indoor Encl MH80 Used

$1,700.00

$1,700.00

Siemens P1C42ML400ABF P1 Panelboard 400A 208/120V 3PH 4W 42 Cir MLO Indoor Encl B68 Box Used

Siemens P1C42ML400ABF P1 Panelboard 400A 208/120V 3PH 4W 42 Cir MLO Indoor Encl B68 Box Used

$1,500.00

$1,500.00

Siemens P1C42ML400ATF P1 Panelboard 400A 208/120V 3PH 4W 42 Cir MLO Indoor Encl B68 Box Used

Siemens P1C42ML400ATF P1 Panelboard 400A 208/120V 3PH 4W 42 Cir MLO Indoor Encl B68 Box Used

$1,500.00

$1,500.00

Siemens P1C42JX400ATF P1 Panelboard 400A 208/120V 3PH 4W 42 Circuit MCB Indoor Encl B68 Used

Siemens P1C42JX400ATF P1 Panelboard 400A 208/120V 3PH 4W 42 Circuit MCB Indoor Encl B68 Used

$1,500.00

$1,500.00

Square D NQ Panelboard 400A 208/120V 3PH 4W MLO 42 Circuit Indoor Encl MH50 Used

Square D NQ Panelboard 400A 208/120V 3PH 4W MLO 42 Circuit Indoor Encl MH50 Used

$1,500.00

$1,500.00

Eaton GHB1020 Bolt On Circuit Breaker 20A 1P 277V GHB 20 Amp 1 Pole New

Eaton GHB1020 Bolt On Circuit Breaker 20A 1P 277V GHB 20 Amp 1 Pole New

$97.00

$97.00

Square D BJA160205 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA New

Square D BJA160205 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA New

$320.00

$320.00

Square D BJA160203 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA New

Square D BJA160203 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA New

$320.00

$320.00

Square D BJA160201 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA

Square D BJA160201 I-Line Circuit Breaker 20A 1P 277V Powerpact 20 Amp BJA

$320.00

$320.00

Square D EJB34045 Circuit Breaker 45A 3P 480/277V EJB 45 Amp 3 Pole New

Square D EJB34045 Circuit Breaker 45A 3P 480/277V EJB 45 Amp 3 Pole New

$475.00

$475.00

Square D BJA36015 I-Line Circuit Breaker 15A 3P 600V 3PH BJA 15 Amp 3 Pole New

Square D BJA36015 I-Line Circuit Breaker 15A 3P 600V 3PH BJA 15 Amp 3 Pole New

$805.00

$805.00

Square D BJA36125 I-Line Circuit Breaker 125A 3P 600V PowerPact 125 Amp 3 Pole Used

Square D BJA36125 I-Line Circuit Breaker 125A 3P 600V PowerPact 125 Amp 3 Pole Used

$775.00

$775.00

Square D BJA36100 I-Line Circuit Breaker 100A 3P 600V 3PH 100 Amp 3 Pole Used

Square D BJA36100 I-Line Circuit Breaker 100A 3P 600V 3PH 100 Amp 3 Pole Used

$550.00

$550.00

Square D BJA36060 I-Line Circuit Breaker 60A 3P 600V PowerPact 60 Amp 3 Pole Used

Square D BJA36060 I-Line Circuit Breaker 60A 3P 600V PowerPact 60 Amp 3 Pole Used

$575.00

$575.00

Square D EDB34050 Circuit Breaker 50A 3P 480/277V EDB 50 Amp 3 Pole New

Square D EDB34050 Circuit Breaker 50A 3P 480/277V EDB 50 Amp 3 Pole New

$245.00

$245.00

GE SGDA36AN0400 Circuit Breaker 400A 3P 600V SGDA 400 Amp 3 Pole Used

GE SGDA36AN0400 Circuit Breaker 400A 3P 600V SGDA 400 Amp 3 Pole Used

$390.00

$390.00

GE SRPE60A40 Rating Plug 40A SRPE60 40 Amp Frame SEDA SEHA SELA SEPA Used

GE SRPE60A40 Rating Plug 40A SRPE60 40 Amp Frame SEDA SEHA SELA SEPA Used

$100.00

$100.00

GE SRPE100A100 Rating Plug 100A SRPE100 100 Amp Frame SEDA SEHA SELA SEPA Used

GE SRPE100A100 Rating Plug 100A SRPE100 100 Amp Frame SEDA SEHA SELA SEPA Used

$125.00

$125.00

GE SRPE100A90 Rating Plug 90A SRPE100 90 Amp Frame SEDA SEHA SELA SEPA Used

GE SRPE100A90 Rating Plug 90A SRPE100 90 Amp Frame SEDA SEHA SELA SEPA Used

$125.00

$125.00

GE SRPE100A70 Rating Plug 70A SRPE100 70 Amp Frame SEDA SEHA SELA SEPA Used

GE SRPE100A70 Rating Plug 70A SRPE100 70 Amp Frame SEDA SEHA SELA SEPA Used

$125.00

$125.00

GE SRPF250A200 Rating Plug 200A SRPF250 200 Amp Frame SFDA SFHA SFLA SFPA Used

GE SRPF250A200 Rating Plug 200A SRPF250 200 Amp Frame SFDA SFHA SFLA SFPA Used

$125.00

$125.00

GE SRPK1200A1000 Rating Plug 1000 Amp SRPK1200 1000A Frame SKDA SKHA SKLA SKPA Used

GE SRPK1200A1000 Rating Plug 1000 Amp SRPK1200 1000A Frame SKDA SKHA SKLA SKPA Used

$120.00

$120.00

GE SRPG600A600 Rating Plug 600 Amp SRPG600 600A Frame SGDA SGHA SGLA SGPA Used

GE SRPG600A600 Rating Plug 600 Amp SRPG600 600A Frame SGDA SGHA SGLA SGPA Used

$125.00

$125.00

GE SRPG600A450 Rating Plug 450 Amp SRPG600 450A Frame SGDA SGHA SGLA SGPA Used

GE SRPG600A450 Rating Plug 450 Amp SRPG600 450A Frame SGDA SGHA SGLA SGPA Used

$90.00

$90.00

General Electric GE TMQD32225 Circuit Breaker 225A 3P 240V TMQD 225 Amp Used

General Electric GE TMQD32225 Circuit Breaker 225A 3P 240V TMQD 225 Amp Used

$650.00

$650.00

GE MB233WB Sub Feed Kit SF250 225A 3P with SFHA Breaker 225 Amp New

GE MB233WB Sub Feed Kit SF250 225A 3P with SFHA Breaker 225 Amp New

$2,800.00

$2,800.00

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