Fulton Boiler 2-40-000420 Relay
The Fulton Boiler 2-40-000420 Relay is a critical 120V low water safety relay designed for demanding steam and hydronic applications. As a genuine OEM Fulton replacement part, this component integrates directly with your boiler’s control circuit to provide precise low water cutoff (LWCO) monitoring and pump control. Maintaining proper water levels is essential to prevent dry firing and catastrophic pressure vessel failure; this relay ensures that if a low-water condition occurs, the burner circuit is interrupted while simultaneously managing the feed pump relay logic. Engineered for Fulton vertical tubeless boilers and thermal fluid heaters, the 2-40-000420 offers industrial-grade durability and high-cycle reliability. For contractors and facility managers, utilizing this OEM boiler component is the only way to ensure the system maintains its original safety listings and operating specifications without the risks associated with universal aftermarket alternatives.
Key Benefits for Technicians:- Direct OEM Compatibility: Engineered specifically for Fulton systems to ensure seamless boiler control circuit integration.
- Critical Safety Protection: Hardwired low water safety relay functionality prevents boiler dry-firing and heat exchanger damage.
- Dual-Function Logic: Efficiently manages both safety shutdown protocols and feed pump control cycles from a single 120V signal.
- Industrial Build Quality: Built to withstand the high-temperature environments typical of commercial boiler rooms.
Is the 2-40-000420 relay compatible with 24V control systems?
No, this specific model is a 120V relay. Always verify your control transformer output and wiring schematic before installation to avoid damaging the coil.
Can this relay be used as a primary low-water cutoff?
This relay is typically used in conjunction with a probe-type or float-type level sensor to provide the logic necessary for safety shutdowns and pump sequencing.
How do I test the relay during a scheduled maintenance inspection?
Perform a standard "evaporation test" or "slow drain test" to ensure the relay properly trips the burner circuit and activates the pump when the water level drops below the safety threshold.
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: $349.40
-65%$349.40
$122.29Fulton Boiler 2-40-000420 Relay
The Fulton Boiler 2-40-000420 Relay is a critical 120V low water safety relay designed for demanding steam and hydronic applications. As a genuine OEM Fulton replacement part, this component integrates directly with your boiler’s control circuit to provide precise low water cutoff (LWCO) monitoring and pump control. Maintaining proper water levels is essential to prevent dry firing and catastrophic pressure vessel failure; this relay ensures that if a low-water condition occurs, the burner circuit is interrupted while simultaneously managing the feed pump relay logic. Engineered for Fulton vertical tubeless boilers and thermal fluid heaters, the 2-40-000420 offers industrial-grade durability and high-cycle reliability. For contractors and facility managers, utilizing this OEM boiler component is the only way to ensure the system maintains its original safety listings and operating specifications without the risks associated with universal aftermarket alternatives.
Key Benefits for Technicians:- Direct OEM Compatibility: Engineered specifically for Fulton systems to ensure seamless boiler control circuit integration.
- Critical Safety Protection: Hardwired low water safety relay functionality prevents boiler dry-firing and heat exchanger damage.
- Dual-Function Logic: Efficiently manages both safety shutdown protocols and feed pump control cycles from a single 120V signal.
- Industrial Build Quality: Built to withstand the high-temperature environments typical of commercial boiler rooms.
Is the 2-40-000420 relay compatible with 24V control systems?
No, this specific model is a 120V relay. Always verify your control transformer output and wiring schematic before installation to avoid damaging the coil.
Can this relay be used as a primary low-water cutoff?
This relay is typically used in conjunction with a probe-type or float-type level sensor to provide the logic necessary for safety shutdowns and pump sequencing.
How do I test the relay during a scheduled maintenance inspection?
Perform a standard "evaporation test" or "slow drain test" to ensure the relay properly trips the burner circuit and activates the pump when the water level drops below the safety threshold.
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 Fulton Boiler 2-40-000420 Relay is a critical 120V low water safety relay designed for demanding steam and hydronic applications. As a genuine OEM Fulton replacement part, this component integrates directly with your boiler’s control circuit to provide precise low water cutoff (LWCO) monitoring and pump control. Maintaining proper water levels is essential to prevent dry firing and catastrophic pressure vessel failure; this relay ensures that if a low-water condition occurs, the burner circuit is interrupted while simultaneously managing the feed pump relay logic. Engineered for Fulton vertical tubeless boilers and thermal fluid heaters, the 2-40-000420 offers industrial-grade durability and high-cycle reliability. For contractors and facility managers, utilizing this OEM boiler component is the only way to ensure the system maintains its original safety listings and operating specifications without the risks associated with universal aftermarket alternatives.
Key Benefits for Technicians:- Direct OEM Compatibility: Engineered specifically for Fulton systems to ensure seamless boiler control circuit integration.
- Critical Safety Protection: Hardwired low water safety relay functionality prevents boiler dry-firing and heat exchanger damage.
- Dual-Function Logic: Efficiently manages both safety shutdown protocols and feed pump control cycles from a single 120V signal.
- Industrial Build Quality: Built to withstand the high-temperature environments typical of commercial boiler rooms.
Is the 2-40-000420 relay compatible with 24V control systems?
No, this specific model is a 120V relay. Always verify your control transformer output and wiring schematic before installation to avoid damaging the coil.
Can this relay be used as a primary low-water cutoff?
This relay is typically used in conjunction with a probe-type or float-type level sensor to provide the logic necessary for safety shutdowns and pump sequencing.
How do I test the relay during a scheduled maintenance inspection?
Perform a standard "evaporation test" or "slow drain test" to ensure the relay properly trips the burner circuit and activates the pump when the water level drops below the safety threshold.
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.
