Transformers

This section contains several different types of transformers. The 24V control circuit step-down transformers are designed to power any 24V control system, including thermostats, gas valves and relays. Honeywell and White Rodgers Transfomers are made for heating systems. These Transformers are the industry standard.

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  • Foot Mounted, Plate Mounted, or Clamp Mounted 120 Vac Transformer w/ 9 in. Lead Wires (40VA) View Specs
    • SKU: AT72D1683
    • Brand: Honeywell

    $19.55 / each

    $75.80 / box
    4 x $18.95

    In Stock! (107 Available) Ships in 24-48 Hrs
  • Foot Mounted, Plate Mounted, Clamp mounted or Panel Mounted 120 Vac Transformer (40VA) View Specs
    • SKU: AT140A1000
    • Brand: Honeywell

    $9.45 / each

    $36.60 / box
    4 x $9.15

    In Stock! (389 Available) Ships in 24-48 Hrs
  • Foot Mounted 120/208/240 Vac Transformer w/ 9 in. Lead Wires (40VA) View Specs

    $9.95 / each

    $38.20 / box
    4 x $9.55

    In Stock! (103 Available) Ships in 24-48 Hrs
  • Foot Mounted, Plate Mounted, Clamp mounted or Panel Mounted 120/208/240 Vac Transformer w/ 9 in. Lead Wires (50VA) View Specs

    $14.55 / each

    $55.80 / box
    4 x $13.95

    In Stock! (94 Available) Ships in 24-48 Hrs
  • Foot Mounted 120/208/240 Vac Transformer w/ 9 in. Lead Wires w/ Plastic End Caps View Specs

    $14.95 / each

    In Stock! (10 Available) Ships in 24-48 Hrs
  • Foot Mounted, Plate Mounted, Clamp Mounted or Panel Mounted 120 VAC / 27 V.O.C. Transformer w/ 9 in. Lead Wires (40 VA) View Specs

    $12.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • Foot mounted 120/208/240 Vac Transformer w/ 9 in. Lead Wires (75VA) View Specs

    $26.59 / each

    $102.60 / box
    4 x $25.65

    In Stock! (96 Available) Ships in 24-48 Hrs
  • 120 VAC 50/60 Hz Gas ignition Transformer View Specs
    • SKU: Q624A1014
    • Brand: Honeywell

    $124.95 / each

    $359.85 / box
    3 x $119.95

    In Stock! (103 Available) Ships in 24-48 Hrs
  • Universal Mount Transformer View Specs
    • SKU: AT140A1042
    • Brand: Honeywell

    $20.95 / each

    $99.75 / box
    5 x $19.95

    In Stock! (25 Available) Ships in 24-48 Hrs
  • Foot mounted 40 Vac Transformer with 1/4" Male Quick Connects View Specs

    $8.25 / each

    $79.50 / box
    10 x $7.95

    In Stock! (35 Available) Ships in 24-48 Hrs
  • Foot mounted 120 Vac Transformer with 9 in. leadwires and plastic end caps View Specs
    • SKU: AT140B1206
    • Brand: Honeywell

    $8.75 / each

    $83.50 / box
    10 x $8.35

    In Stock! (19 Available) Ships in 24-48 Hrs
  • Foot mounted 120/208/240 Vac Transformer with 9 in. lead wires and plastic end caps View Specs

    $8.95 / each

    $34.60 / box
    4 x $8.65

    In Stock! (43 Available) Ships in 24-48 Hrs
  • Foot mounted 277 Vac Transformer with 9 in. leadwires and plastic end caps View Specs
    • SKU: AT150B1252
    • Brand: Honeywell

    $19.15 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • Plug-In Transformer, 120/24V, 20VA View Specs
    • SKU: 620-202
    • Brand: Robertshaw

    $17.55 / each

    In Stock! (9 Available) Ships in 24-48 Hrs
  • 24V Motor Protector Transformer View Specs
    • SKU: 30-103
    • Brand: Robertshaw

    $6.95 / each

    Non-Stock Item Allow 2-3 Weeks to Ship Out
  • 120/208/240V Foot Mount Transformer w/ 8" wire leads View Specs

    $14.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • Evaporative Cooler Transformer Relay Control Panel, Part Of 21D28-6 Evaporative Cooler Package View Specs
    • SKU: 8A18Z-2
    • Brand: White Rodgers

    $102.95 / each

    $296.55 / box
    3 x $98.85

    In Stock! (11 Available) Ships in 24-48 Hrs
  • Transformer, 40VA, 60 Hz, 120V Primary, 24V Secondary, Foot Mount View Specs

    $8.95 / each

    $85.50 / box
    10 x $8.55

    In Stock! (8 Available) Ships in 24-48 Hrs
  • Transformer, 40VA, 50/60 Hz, 208/240V Primary, 24V Secondary, Foot Mount View Specs

    $9.55 / each

    $92.50 / box
    10 x $9.25

    In Stock! (2 Available) Ships in 24-48 Hrs
  • Transformer, 40VA, 60 Hz, 120/208/240V Primary, 24V Secondary, Foot Mount View Specs

    $8.25 / each

    $79.50 / box
    10 x $7.95

    In Stock! (15 Available) Ships in 24-48 Hrs

More About Transformers

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.