
York S1-025-47239-000 Transformer
The York S1-025-47239-000 Transformer is a heavy-duty 100VA control transformer engineered for high-demand HVACR applications. This OEM York replacement part features a multi-tap 208/240V primary voltage and steps down to a stable 24V secondary voltage, providing the necessary low-voltage power for contactors, relays, and interface boards. Designed for high-duty cycles, this step-down transformer is built with an iron core and copper windings to ensure thermal stability and minimize energy loss during continuous operation.
For technicians servicing York, Luxaire, or Coleman equipment, the S1-025-47239-000 offers a precise fit for air handlers and packaged units such as the YCJD series. The 100VA rating provides a significant power buffer, making it an ideal upgrade or replacement for 40VA or 75VA units where additional low-voltage accessories, like zone controllers or high-draw humidifiers, are integrated into the system. This HVAC 24V transformer ensures electrical isolation and protects sensitive control circuits from primary-side voltage fluctuations.
Key Benefits- 100VA Power Capacity: Provides ample amperage for complex control circuits and multiple 24V peripherals without voltage sag.
- Dual-Primary Compatibility: Supports both 208V and 240V inputs, offering flexibility for various commercial and residential electrical services.
- OEM Precision: Guaranteed York s1-025-47239-000 specifications ensure terminal consistency and mounting alignment for faster field installations.
- Durable Construction: High-grade copper windings and laminated steel core reduce humming and improve heat dissipation.
Can I use this 100VA transformer to replace a 40VA model?
Yes. In 24V control circuits, a higher VA rating indicates the maximum load the transformer can handle. Replacing a lower-rated unit with this 100VA model provides a higher safety margin and prevents overheating when powering modern smart thermostats or multiple relays.
How do I wire the primary for 208V versus 240V?
Technicians must verify the leads against the wiring diagram provided on the housing. Selecting the correct primary tap is critical to ensuring the secondary output remains at a steady 24V under load.
What causes a control transformer to fail?
Common failure points include secondary-side shorts, such as a grounded contactor coil or a pinched thermostat wire. Always check the total VA draw and inspect for shorts before installing the new S1-025-47239-000.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $177.73
-65%$177.73
$62.21York S1-025-47239-000 Transformer
The York S1-025-47239-000 Transformer is a heavy-duty 100VA control transformer engineered for high-demand HVACR applications. This OEM York replacement part features a multi-tap 208/240V primary voltage and steps down to a stable 24V secondary voltage, providing the necessary low-voltage power for contactors, relays, and interface boards. Designed for high-duty cycles, this step-down transformer is built with an iron core and copper windings to ensure thermal stability and minimize energy loss during continuous operation.
For technicians servicing York, Luxaire, or Coleman equipment, the S1-025-47239-000 offers a precise fit for air handlers and packaged units such as the YCJD series. The 100VA rating provides a significant power buffer, making it an ideal upgrade or replacement for 40VA or 75VA units where additional low-voltage accessories, like zone controllers or high-draw humidifiers, are integrated into the system. This HVAC 24V transformer ensures electrical isolation and protects sensitive control circuits from primary-side voltage fluctuations.
Key Benefits- 100VA Power Capacity: Provides ample amperage for complex control circuits and multiple 24V peripherals without voltage sag.
- Dual-Primary Compatibility: Supports both 208V and 240V inputs, offering flexibility for various commercial and residential electrical services.
- OEM Precision: Guaranteed York s1-025-47239-000 specifications ensure terminal consistency and mounting alignment for faster field installations.
- Durable Construction: High-grade copper windings and laminated steel core reduce humming and improve heat dissipation.
Can I use this 100VA transformer to replace a 40VA model?
Yes. In 24V control circuits, a higher VA rating indicates the maximum load the transformer can handle. Replacing a lower-rated unit with this 100VA model provides a higher safety margin and prevents overheating when powering modern smart thermostats or multiple relays.
How do I wire the primary for 208V versus 240V?
Technicians must verify the leads against the wiring diagram provided on the housing. Selecting the correct primary tap is critical to ensuring the secondary output remains at a steady 24V under load.
What causes a control transformer to fail?
Common failure points include secondary-side shorts, such as a grounded contactor coil or a pinched thermostat wire. Always check the total VA draw and inspect for shorts before installing the new S1-025-47239-000.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The York S1-025-47239-000 Transformer is a heavy-duty 100VA control transformer engineered for high-demand HVACR applications. This OEM York replacement part features a multi-tap 208/240V primary voltage and steps down to a stable 24V secondary voltage, providing the necessary low-voltage power for contactors, relays, and interface boards. Designed for high-duty cycles, this step-down transformer is built with an iron core and copper windings to ensure thermal stability and minimize energy loss during continuous operation.
For technicians servicing York, Luxaire, or Coleman equipment, the S1-025-47239-000 offers a precise fit for air handlers and packaged units such as the YCJD series. The 100VA rating provides a significant power buffer, making it an ideal upgrade or replacement for 40VA or 75VA units where additional low-voltage accessories, like zone controllers or high-draw humidifiers, are integrated into the system. This HVAC 24V transformer ensures electrical isolation and protects sensitive control circuits from primary-side voltage fluctuations.
Key Benefits- 100VA Power Capacity: Provides ample amperage for complex control circuits and multiple 24V peripherals without voltage sag.
- Dual-Primary Compatibility: Supports both 208V and 240V inputs, offering flexibility for various commercial and residential electrical services.
- OEM Precision: Guaranteed York s1-025-47239-000 specifications ensure terminal consistency and mounting alignment for faster field installations.
- Durable Construction: High-grade copper windings and laminated steel core reduce humming and improve heat dissipation.
Can I use this 100VA transformer to replace a 40VA model?
Yes. In 24V control circuits, a higher VA rating indicates the maximum load the transformer can handle. Replacing a lower-rated unit with this 100VA model provides a higher safety margin and prevents overheating when powering modern smart thermostats or multiple relays.
How do I wire the primary for 208V versus 240V?
Technicians must verify the leads against the wiring diagram provided on the housing. Selecting the correct primary tap is critical to ensuring the secondary output remains at a steady 24V under load.
What causes a control transformer to fail?
Common failure points include secondary-side shorts, such as a grounded contactor coil or a pinched thermostat wire. Always check the total VA draw and inspect for shorts before installing the new S1-025-47239-000.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












