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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
    (23)
    $9.99 each
    38
    Tue, Jun 16
    290
    QtyArrives
    38 Tue, Jun 16
    252 Wed, Jun 17
    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: Honeywell
    (14)
    $12.49 each
    31
    Tue, Jun 16
    759
    QtyArrives
    31 Tue, Jun 16
    728 Wed, Jun 17
    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
    (1)
    $8.79 each
    Tue, Jun 23 – Tue, Jun 30
    Arrives
    Tue, Jun 23 – Tue, Jun 30
    Questions? Call 1-888-757-4774 or
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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
    (5)
    $18.99 each
    21
    Tue, Jun 16
    21
    QtyArrives
    21 Tue, Jun 16
    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 PF42440 Foot Mount 120/208/240V (Primary) 24V (Secondary) 40VA Transformer
    SKU: PF42440
    Brand: Packard
    (2)
    $8.99 each
    34
    Tue, Jun 16
    34
    QtyArrives
    34 Tue, Jun 16
    Questions? Call 1-888-757-4774
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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
    (16)
    $10.49 each
    Thu, Jun 25 – Tue, Jun 30
    Arrives
    Thu, Jun 25 – Tue, Jun 30
    Questions? Call 1-888-757-4774 or
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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
    (5)
    $11.49 each
    11
    Tue, Jun 16
    37
    QtyArrives
    11 Tue, Jun 16
    26 Wed, Jun 17
    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)
    $27.79 each
    9
    Tue, Jun 16
    41
    QtyArrives
    9 Tue, Jun 16
    32 Wed, Jun 17
    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: Honeywell
    (3)
    $13.79 each
    305
    Tue, Jun 16
    305
    QtyArrives
    305 Tue, Jun 16
    Questions? Call 1-888-757-4774
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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: Honeywell
    (2)
    $29.29 each
    30
    Tue, Jun 16
    256
    QtyArrives
    30 Tue, Jun 16
    226 Wed, Jun 17
    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)
    $8.29 each
    33
    Tue, Jun 16
    192
    QtyArrives
    33 Tue, Jun 16
    159 Wed, Jun 17
    Questions? Call 1-888-757-4774
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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)
    $26.79 each
    12
    Tue, Jun 16
    38
    QtyArrives
    12 Tue, Jun 16
    26 Wed, Jun 17
    Questions? Call 1-888-757-4774
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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
    (3)
    $9.69 each
    4
    Tue, Jun 16
    4
    QtyArrives
    4 Tue, Jun 16
    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)
    $15.99 each
    7
    Tue, Jun 16
    28
    QtyArrives
    7 Tue, Jun 16
    21 Wed, Jun 17
    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 AT72D1006 120 VAC (Primary) 26.5V (Secondary) 40 VA Transformer
    SKU: AT72D1006
    Brand: Honeywell
    (8)
    $25.69 each
    2
    Tue, Jun 16
    54
    QtyArrives
    2 Tue, Jun 16
    52 Wed, Jun 17
    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)
    $129.99 each
    29
    Tue, Jun 16
    270
    QtyArrives
    29 Tue, Jun 16
    241 Wed, Jun 17
    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 AT175F1023 120/208/240 VAC (Primary) 27.5V (Secondary) 75 VA Transformer
    SKU: AT175F1023
    Brand: Honeywell
    (5)
    $36.59 each
    86
    Tue, Jun 16
    86
    QtyArrives
    86 Tue, Jun 16
    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
    25
    Tue, Jun 16
    25
    QtyArrives
    25 Tue, Jun 16
    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: Honeywell
    (8)
    $24.19 each
    19
    Tue, Jun 16
    367
    QtyArrives
    19 Tue, Jun 16
    348 Wed, Jun 17
    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: Honeywell
    (9)
    $32.99 each
    3
    Tue, Jun 16
    208
    QtyArrives
    3 Tue, Jun 16
    205 Wed, Jun 17
    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
    $21.75 each
    22
    Tue, Jun 16
    167
    QtyArrives
    22 Tue, Jun 16
    145 Wed, Jun 17
    Questions? Call 1-888-757-4774
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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
    $8.45 each
    144
    Wed, Jun 17
    144
    QtyArrives
    144 Wed, Jun 17
    Questions? Call 1-888-757-4774
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  • Transformer w/ Circuit Breaker,Single Hub, Foot Mount, 100VA, 120-24 Vac Product Image
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    Transformer w/ Circuit Breaker,Single Hub, Foot Mount, 100VA, 120-24 Vac TR100VA001 Transformer w/ Circuit Breaker,Single Hub, Foot Mount, 100VA, 120-24 Vac
    SKU: TR100VA001
    Brand: Functional Devices
    $24.95 each
    6
    Tue, Jun 16
    53
    QtyArrives
    6 Tue, Jun 16
    47 Wed, Jun 17
    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
    31
    Tue, Jun 16
    31
    QtyArrives
    31 Tue, Jun 16
    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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