Supco 90290 Relay
The Supco 90290 Relay is a heavy-duty, general-purpose 24V N/O SPST relay engineered for reliable switching in HVACR and industrial control circuits. Built for high-cycling applications, this SPST fan relay features a 24 VAC coil and single-pole, normally open contacts, making it a professional-grade solution for managing HVAC blower motor operation and automated equipment sequences. With a contact rating of 8 FLA / 18 LRA and a 50/60 Hz frequency range, the 90290 switching relay provides consistent performance under demanding electrical loads. Its compact, sealed design allows for flexible mounting in tight control cabinets, and it serves as a direct HVAC relay replacement for several legacy manufacturer parts, including those from Fedders and Lennox. Technicians can rely on the Supco 90290 for simplified wiring thanks to its clearly labeled terminals, ensuring efficient HVAC electrical troubleshooting and restoration of system functionality.
Key Benefits for Technicians- High Load Capacity: Rated for 8 Full Load Amps (FLA) and 18 Locked Rotor Amps (LRA) at 125/250 VAC.
- Universal Compatibility: Efficiently replaces common OEM parts like Fedders 19-15-447B-1 and Lennox P-8-7354.
- Simplified Installation: Standard 1/4 inch quick-connect terminals and compact housing fit most general-purpose mounting brackets.
- Reliable Switching: Designed for 24V AC control systems to eliminate relay chatter and ensure clean contact engagement.
How do I wire the Supco 90290 onto a standard 24V control circuit?
The 24V coil terminals (typically 1 and 3) receive power from the thermostat G and C terminals. When energized, the normally open contacts (terminals 2 and 4) close, allowing line voltage to flow to the blower motor or other auxiliary loads. Always verify your specific diagram as terminal numbers can vary by manufacturer.
Can I use this relay for DC applications or 120V coils?
No. The Supco 90290 is specifically rated for a 24 VAC coil. For 110/120V or 240V coil requirements, you must use the Supco 90291 or 90292 respectively. Using the wrong coil voltage will result in immediate component failure.
What is the difference between SPST and SPDT in these applications?
An SPST relay like this unit only controls one circuit in a simple on/off (normally open) state. If your application requires switching between two different circuits (like high and low fan speeds), an SPDT (Single Pole Double Throw) relay would be necessary instead.
This item is not eligible for free shipping.
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.
Supco 90290 Relay
The Supco 90290 Relay is a heavy-duty, general-purpose 24V N/O SPST relay engineered for reliable switching in HVACR and industrial control circuits. Built for high-cycling applications, this SPST fan relay features a 24 VAC coil and single-pole, normally open contacts, making it a professional-grade solution for managing HVAC blower motor operation and automated equipment sequences. With a contact rating of 8 FLA / 18 LRA and a 50/60 Hz frequency range, the 90290 switching relay provides consistent performance under demanding electrical loads. Its compact, sealed design allows for flexible mounting in tight control cabinets, and it serves as a direct HVAC relay replacement for several legacy manufacturer parts, including those from Fedders and Lennox. Technicians can rely on the Supco 90290 for simplified wiring thanks to its clearly labeled terminals, ensuring efficient HVAC electrical troubleshooting and restoration of system functionality.
Key Benefits for Technicians- High Load Capacity: Rated for 8 Full Load Amps (FLA) and 18 Locked Rotor Amps (LRA) at 125/250 VAC.
- Universal Compatibility: Efficiently replaces common OEM parts like Fedders 19-15-447B-1 and Lennox P-8-7354.
- Simplified Installation: Standard 1/4 inch quick-connect terminals and compact housing fit most general-purpose mounting brackets.
- Reliable Switching: Designed for 24V AC control systems to eliminate relay chatter and ensure clean contact engagement.
How do I wire the Supco 90290 onto a standard 24V control circuit?
The 24V coil terminals (typically 1 and 3) receive power from the thermostat G and C terminals. When energized, the normally open contacts (terminals 2 and 4) close, allowing line voltage to flow to the blower motor or other auxiliary loads. Always verify your specific diagram as terminal numbers can vary by manufacturer.
Can I use this relay for DC applications or 120V coils?
No. The Supco 90290 is specifically rated for a 24 VAC coil. For 110/120V or 240V coil requirements, you must use the Supco 90291 or 90292 respectively. Using the wrong coil voltage will result in immediate component failure.
What is the difference between SPST and SPDT in these applications?
An SPST relay like this unit only controls one circuit in a simple on/off (normally open) state. If your application requires switching between two different circuits (like high and low fan speeds), an SPDT (Single Pole Double Throw) relay would be necessary instead.
This item is not eligible for free shipping.
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
Shipping & Returns
Shipping & Returns
Description
The Supco 90290 Relay is a heavy-duty, general-purpose 24V N/O SPST relay engineered for reliable switching in HVACR and industrial control circuits. Built for high-cycling applications, this SPST fan relay features a 24 VAC coil and single-pole, normally open contacts, making it a professional-grade solution for managing HVAC blower motor operation and automated equipment sequences. With a contact rating of 8 FLA / 18 LRA and a 50/60 Hz frequency range, the 90290 switching relay provides consistent performance under demanding electrical loads. Its compact, sealed design allows for flexible mounting in tight control cabinets, and it serves as a direct HVAC relay replacement for several legacy manufacturer parts, including those from Fedders and Lennox. Technicians can rely on the Supco 90290 for simplified wiring thanks to its clearly labeled terminals, ensuring efficient HVAC electrical troubleshooting and restoration of system functionality.
Key Benefits for Technicians- High Load Capacity: Rated for 8 Full Load Amps (FLA) and 18 Locked Rotor Amps (LRA) at 125/250 VAC.
- Universal Compatibility: Efficiently replaces common OEM parts like Fedders 19-15-447B-1 and Lennox P-8-7354.
- Simplified Installation: Standard 1/4 inch quick-connect terminals and compact housing fit most general-purpose mounting brackets.
- Reliable Switching: Designed for 24V AC control systems to eliminate relay chatter and ensure clean contact engagement.
How do I wire the Supco 90290 onto a standard 24V control circuit?
The 24V coil terminals (typically 1 and 3) receive power from the thermostat G and C terminals. When energized, the normally open contacts (terminals 2 and 4) close, allowing line voltage to flow to the blower motor or other auxiliary loads. Always verify your specific diagram as terminal numbers can vary by manufacturer.
Can I use this relay for DC applications or 120V coils?
No. The Supco 90290 is specifically rated for a 24 VAC coil. For 110/120V or 240V coil requirements, you must use the Supco 90291 or 90292 respectively. Using the wrong coil voltage will result in immediate component failure.
What is the difference between SPST and SPDT in these applications?
An SPST relay like this unit only controls one circuit in a simple on/off (normally open) state. If your application requires switching between two different circuits (like high and low fan speeds), an SPDT (Single Pole Double Throw) relay would be necessary instead.
This item is not eligible for free shipping.
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.
