Aprilaire 50 Relay
Optimize your home climate control system with the Aprilaire 50 Relay, a high-performance current sensing relay designed specifically for 24V HVAC applications. This essential component ensures your whole-house humidifier operates only when the furnace blower is active, preventing wasted water and protecting sensitive electronics from electrical feedback. By detecting the furnace blower motor current, the Aprilaire 50 automates the humidification process with precision. It is compatible with a wide range of models, including the Aprilaire 400, 500, 600, and 700 series. Measuring just 1" x 1.44" x 2.75", its compact design allows for easy integration into existing ductwork and electrical housings. To ensure reliable switching, the unit requires a minimum sensing current of 4.0 amps; for systems with lower current, simply wrap the common wire around the sensing bracket to increase detection sensitivity. This HVAC accessory is the professional choice for maintaining ideal indoor air quality while extending the lifespan of your humidifier's solenoid valve.
Key Benefits
- Automated Operation: Synchronization with the furnace blower ensures the humidifier only runs when air is actively moving through the ducts.
- System Protection: Isolates the humidifier from the furnace circuit to prevent harmful electrical feedback and premature component wear.
- Versatile Compatibility: Engineered to work seamlessly with both manual and automatic humidistats across the entire Aprilaire evaporative humidifier line.
- Energy Efficiency: Eliminates unnecessary power and water consumption by regulating the 24V circuit based on real-time motor activity.
- Compact Profile: Small footprint allows for flexible installation in crowded mechanical rooms or tight furnace cabinets.
Common Questions
What is the minimum current required for the relay to trip?
The Aprilaire 50 requires at least 4.0 amps of current flowing through the sensed wire. If your motor pulls less than this, you must wrap the wire around the metal bracket multiple times to "multiply" the sensed field.
Can I use this with a 120V humidifier?
No, this specific model is designed for 24V applications. For 120V systems, you would typically require the Aprilaire 51 relay.
Where should the relay be mounted?
It should be mounted at least 4 inches away from any transformers to avoid magnetic interference and should never be in direct contact with metal surfaces that could cause a short.
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: $50.41
-65%$50.41
$17.64Aprilaire 50 Relay
Optimize your home climate control system with the Aprilaire 50 Relay, a high-performance current sensing relay designed specifically for 24V HVAC applications. This essential component ensures your whole-house humidifier operates only when the furnace blower is active, preventing wasted water and protecting sensitive electronics from electrical feedback. By detecting the furnace blower motor current, the Aprilaire 50 automates the humidification process with precision. It is compatible with a wide range of models, including the Aprilaire 400, 500, 600, and 700 series. Measuring just 1" x 1.44" x 2.75", its compact design allows for easy integration into existing ductwork and electrical housings. To ensure reliable switching, the unit requires a minimum sensing current of 4.0 amps; for systems with lower current, simply wrap the common wire around the sensing bracket to increase detection sensitivity. This HVAC accessory is the professional choice for maintaining ideal indoor air quality while extending the lifespan of your humidifier's solenoid valve.
Key Benefits
- Automated Operation: Synchronization with the furnace blower ensures the humidifier only runs when air is actively moving through the ducts.
- System Protection: Isolates the humidifier from the furnace circuit to prevent harmful electrical feedback and premature component wear.
- Versatile Compatibility: Engineered to work seamlessly with both manual and automatic humidistats across the entire Aprilaire evaporative humidifier line.
- Energy Efficiency: Eliminates unnecessary power and water consumption by regulating the 24V circuit based on real-time motor activity.
- Compact Profile: Small footprint allows for flexible installation in crowded mechanical rooms or tight furnace cabinets.
Common Questions
What is the minimum current required for the relay to trip?
The Aprilaire 50 requires at least 4.0 amps of current flowing through the sensed wire. If your motor pulls less than this, you must wrap the wire around the metal bracket multiple times to "multiply" the sensed field.
Can I use this with a 120V humidifier?
No, this specific model is designed for 24V applications. For 120V systems, you would typically require the Aprilaire 51 relay.
Where should the relay be mounted?
It should be mounted at least 4 inches away from any transformers to avoid magnetic interference and should never be in direct contact with metal surfaces that could cause a short.
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
Optimize your home climate control system with the Aprilaire 50 Relay, a high-performance current sensing relay designed specifically for 24V HVAC applications. This essential component ensures your whole-house humidifier operates only when the furnace blower is active, preventing wasted water and protecting sensitive electronics from electrical feedback. By detecting the furnace blower motor current, the Aprilaire 50 automates the humidification process with precision. It is compatible with a wide range of models, including the Aprilaire 400, 500, 600, and 700 series. Measuring just 1" x 1.44" x 2.75", its compact design allows for easy integration into existing ductwork and electrical housings. To ensure reliable switching, the unit requires a minimum sensing current of 4.0 amps; for systems with lower current, simply wrap the common wire around the sensing bracket to increase detection sensitivity. This HVAC accessory is the professional choice for maintaining ideal indoor air quality while extending the lifespan of your humidifier's solenoid valve.
Key Benefits
- Automated Operation: Synchronization with the furnace blower ensures the humidifier only runs when air is actively moving through the ducts.
- System Protection: Isolates the humidifier from the furnace circuit to prevent harmful electrical feedback and premature component wear.
- Versatile Compatibility: Engineered to work seamlessly with both manual and automatic humidistats across the entire Aprilaire evaporative humidifier line.
- Energy Efficiency: Eliminates unnecessary power and water consumption by regulating the 24V circuit based on real-time motor activity.
- Compact Profile: Small footprint allows for flexible installation in crowded mechanical rooms or tight furnace cabinets.
Common Questions
What is the minimum current required for the relay to trip?
The Aprilaire 50 requires at least 4.0 amps of current flowing through the sensed wire. If your motor pulls less than this, you must wrap the wire around the metal bracket multiple times to "multiply" the sensed field.
Can I use this with a 120V humidifier?
No, this specific model is designed for 24V applications. For 120V systems, you would typically require the Aprilaire 51 relay.
Where should the relay be mounted?
It should be mounted at least 4 inches away from any transformers to avoid magnetic interference and should never be in direct contact with metal surfaces that could cause a short.
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.
