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  • 120/208/240V (Primary)<br>24V (Secondary), 40 VA Transformer, Foot-Mount Product Image
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    120/208/240V (Primary) 24V (Secondary), 40 VA Transformer, Foot-Mount 90-T40F3 120/208/240V (Primary) 24V (Secondary), 40 VA Transformer, Foot-Mount
    SKU: 90-T40F3
    Brand: White Rodgers
    (26)
    $9.34 each
    979
    Wed, Apr 28
    979
    QtyArrives
    979 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer Product Image
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    Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer PF4031OEM Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer
    SKU: PF4031OEM
    Brand: Packard
    (3)
    $14.53 each
    843
    Wed, Apr 28
    843
    QtyArrives
    843 Wed, Apr 28
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  • Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer Product Image
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    Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer PF42440 Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer
    SKU: PF42440
    Brand: Packard
    (6)
    $12.78 each
    864
    Wed, Apr 28
    864
    QtyArrives
    864 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • 120 VAC (Primary)<br>27V (Secondary)<br>40 VA Transformer Product Image
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    120 VAC (Primary) 27V (Secondary) 40 VA Transformer AT140A1000 120 VAC (Primary) 27V (Secondary) 40 VA Transformer
    SKU: AT140A1000
    Brand: Resideo
    (15)
    $11.48 each
    960
    Wed, Apr 28
    960
    QtyArrives
    960 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Plate Mount Transformer (120 VAC To 24 VAC) Product Image
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    Plate Mount Transformer (120 VAC To 24 VAC) S84A-410 Plate Mount Transformer (120 VAC To 24 VAC)
    SKU: S84A-410
    Brand: White Rodgers
    (6)
    $19.10 each
    Wed, May 12 – Wed, May 19
    Arrives
    Wed, May 12 – Wed, May 19
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • Transformer, 40VA, 60 Hz 120V Primary, 24V (Secondary), Foot Mount Product Image
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    Transformer, 40VA, 60 Hz 120V Primary, 24V (Secondary), Foot Mount 90-T40F1 Transformer, 40VA, 60 Hz 120V Primary, 24V (Secondary), Foot Mount
    SKU: 90-T40F1
    Brand: White Rodgers
    (17)
    $11.99 each
    150
    Wed, Apr 28
    150
    QtyArrives
    150 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • 120/208/240 VAC (Primary)<br>27V (Secondary)<br>40 VA Transformer Product Image
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    120/208/240 VAC (Primary) 27V (Secondary) 40 VA Transformer AT140A1018 120/208/240 VAC (Primary) 27V (Secondary) 40 VA Transformer
    SKU: AT140A1018
    Brand: Resideo
    (4)
    $14.84 each
    817
    Wed, Apr 28
    817
    QtyArrives
    817 Wed, Apr 28
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  • Class II Foot Mount 208/240V Input & 24V Output, 40VA Transformer Product Image
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    Class II Foot Mount 208/240V Input & 24V Output, 40VA Transformer PF40224 Class II Foot Mount 208/240V Input & 24V Output, 40VA Transformer
    SKU: PF40224
    Brand: Packard
    (6)
    $14.49 each
    130
    Wed, Apr 28
    130
    QtyArrives
    130 Wed, Apr 28
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  • Multi Mount 120V (Primary) 24V (Secondary) 40VA Transformer Product Image
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    Multi Mount 120V (Primary) 24V (Secondary) 40VA Transformer PM12440 Multi Mount 120V (Primary) 24V (Secondary) 40VA Transformer
    SKU: PM12440
    Brand: Packard
    (6)
    $19.14 each
    181
    Wed, Apr 28
    181
    QtyArrives
    181 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Foot Mount 120/208/240V (Primary) 24V (Secondary) 20VA Transformer Product Image
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    Foot Mount 120/208/240V (Primary) 24V (Secondary) 20VA Transformer PF42420 Foot Mount 120/208/240V (Primary) 24V (Secondary) 20VA Transformer
    SKU: PF42420
    Brand: Packard
    (2)
    $13.71 each
    332
    Wed, Apr 28
    332
    QtyArrives
    332 Wed, Apr 28
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  • Multi Mount 120/208/240/480V (Pri.) 24V (Sec.) 75VA Transformer Product Image
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    Multi Mount 120/208/240/480V (Pri.) 24V (Sec.) 75VA Transformer PM7541MCB Multi Mount 120/208/240/480V (Pri.) 24V (Sec.) 75VA Transformer
    SKU: PM7541MCB
    Brand: Packard
    (3)
    $39.91 each
    169
    Wed, Apr 28
    169
    QtyArrives
    169 Wed, Apr 28
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  • 120 VAC (Primary)<br>26.5V (Secondary)<br>40 VA Transformer Product Image
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    120 VAC (Primary) 26.5V (Secondary) 40 VA Transformer AT72D1006 120 VAC (Primary) 26.5V (Secondary) 40 VA Transformer
    SKU: AT72D1006
    Brand: Resideo
    (8)
    $23.03 each
    204
    Wed, Apr 28
    204
    QtyArrives
    204 Wed, Apr 28
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  • 120V/208V/240V (Primary) 24V (Secondary), 40VA Transformer, Foot Mount Product Image
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    120V/208V/240V (Primary) 24V (Secondary), 40VA Transformer, Foot Mount TRAN-40VA 120V/208V/240V (Primary) 24V (Secondary), 40VA Transformer, Foot Mount
    SKU: TRAN-40VA
    Brand: Hartland Controls
    $9.20 each
    513
    Wed, Apr 28
    513
    QtyArrives
    513 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Foot Mount 120/208/240/480V 75VA Transformer Product Image
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    Foot Mount 120/208/240/480V 75VA Transformer PF52475 Foot Mount 120/208/240/480V 75VA Transformer
    SKU: PF52475
    Brand: Packard
    (3)
    $37.34 each
    73
    Wed, Apr 28
    73
    QtyArrives
    73 Wed, Apr 28
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  • Plate or Panel Mounted 120/208/240 Vac Transformer w/ 9" Lead Wires & Metal End Bells Product Image
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    Plate or Panel Mounted 120/208/240 Vac Transformer w/ 9" Lead Wires & Metal End Bells AT150F1022 Plate or Panel Mounted 120/208/240 Vac Transformer w/ 9" Lead Wires & Metal End Bells
    SKU: AT150F1022
    Brand: Resideo
    (2)
    $26.69 each
    477
    Wed, Apr 28
    477
    QtyArrives
    477 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • 120V/208V/240V/480V (Primary) 24V (Secondary), 75VA Transformer, Foot Mount Product Image
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    120V/208V/240V/480V (Primary) 24V (Secondary), 75VA Transformer, Foot Mount TRAN-75VA 120V/208V/240V/480V (Primary) 24V (Secondary), 75VA Transformer, Foot Mount
    SKU: TRAN-75VA
    Brand: Hartland Controls
    (1)
    $23.68 each
    323
    Wed, Apr 28
    323
    QtyArrives
    323 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Transformer, Single Hub, Foot Mount, 75VA, 120 to 24 Vac Product Image
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    Transformer, Single Hub, Foot Mount, 75VA, 120 to 24 Vac TR75VA001 Transformer, Single Hub, Foot Mount, 75VA, 120 to 24 Vac
    SKU: TR75VA001
    Brand: Functional Devices
    $22.25 each
    49
    Wed, Apr 28
    49
    QtyArrives
    49 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Gas Ignition Transformer (120 VAC, 50/60 Hz) Product Image
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    Gas Ignition Transformer (120 VAC, 50/60 Hz) Q624A1014 Gas Ignition Transformer (120 VAC, 50/60 Hz)
    SKU: Q624A1014
    Brand: Honeywell
    (1)
    $132.59 each
    290
    Wed, Apr 28
    290
    QtyArrives
    290 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Gas Ignition Transformer<br>(120 VAC, 60 Hz) Product Image
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    Gas Ignition Transformer (120 VAC, 60 Hz) ET401A1 Gas Ignition Transformer (120 VAC, 60 Hz)
    SKU: ET401A1
    Brand: Honeywell
    (2)
    $68.99 each
    146
    Wed, Apr 28
    146
    QtyArrives
    146 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • 120/208/240 VAC (Primary) 27.5V (Secondary)<br>75 VA Transformer Product Image
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    120/208/240 VAC (Primary) 27.5V (Secondary) 75 VA Transformer AT175A1008 120/208/240 VAC (Primary) 27.5V (Secondary) 75 VA Transformer
    SKU: AT175A1008
    Brand: Resideo
    (10)
    $37.29 each
    376
    Wed, Apr 28
    376
    QtyArrives
    376 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • 120 VAC (Primary)<br>26.5V (Secondary)<br>40 VA Transformer Product Image
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    120 VAC (Primary) 26.5V (Secondary) 40 VA Transformer AT72D1683 120 VAC (Primary) 26.5V (Secondary) 40 VA Transformer
    SKU: AT72D1683
    Brand: Resideo
    (8)
    $22.20 each
    241
    Wed, Apr 28
    241
    QtyArrives
    241 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Multi Mount 120/208-240V (Primary) 24V (Secondary) 50VA Transformer Product Image
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    Multi Mount 120/208-240V (Primary) 24V (Secondary) 50VA Transformer PM44450 Multi Mount 120/208-240V (Primary) 24V (Secondary) 50VA Transformer
    SKU: PM44450
    Brand: Packard
    (2)
    $26.71 each
    64
    Wed, Apr 28
    64
    QtyArrives
    64 Wed, Apr 28
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  • Universal Mount Transformer Product Image
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    Universal Mount Transformer AT140A1042 Universal Mount Transformer
    SKU: AT140A1042
    Brand: Honeywell
    (9)
    $24.19 each
    130
    Wed, Apr 28
    130
    QtyArrives
    130 Wed, Apr 28
    Questions? Call 1-888-757-4774
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  • Transformer, Foot & Single Threaded Hub Mount, 50VA, 120 to 24 Vac Product Image
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    Transformer, Foot & Single Threaded Hub Mount, 50VA, 120 to 24 Vac TR50VA001 Transformer, Foot & Single Threaded Hub Mount, 50VA, 120 to 24 Vac
    SKU: TR50VA001
    Brand: Functional Devices
    (1)
    $12.95 each
    86
    Wed, Apr 28
    86
    QtyArrives
    86 Wed, Apr 28
    Questions? Call 1-888-757-4774
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FAQs, Manuals & Videos

Resources

Articles

  • Transformers provide power to electric circuits in heating, cooling and HVAC systems. They can be used in any application that does not exceed the transformer's load ratings. Common applications include thermostats, gas valves, and relays. When selecting the appropriate transformer, primary voltage is the most important consideration. Transformers are available in primary voltages ranging from 24V to 480V. Honeywell and White Rodgers transformers are the industry standard.

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