Supco STC4283 Thermal Cutoff
As a veteran tech, you know that keeping high-limit circuits safe is non-negotiable. The Supco STC4283 Thermal Cutoff is a critical safety component designed for precision over-temperature protection. Engineered to open the circuit at a 291°F (144°C) thermal threshold, this non-resettable in-line fusible link serves as the primary safeguard for Supco DH series duct heaters and various HVACR applications. Built to handle 15 Amps at 120 VAC or 10 Amps at 250 VAC, the STC4283 provides the industrial-grade reliability needed to prevent catastrophic equipment failure during a rollout or blower failure event.
The Supco STC4283 is the direct replacement for B689, ensuring a seamless fit for legacy systems without the need for field modifications. Whether you are servicing office machines, portable heaters, or commercial duct systems, this high-limit safety switch offers a definitive response to thermal runaway. Its compact design allows for versatile mounting, making it a staple in any contractor's truck stock for emergency repairs and preventative maintenance calls involving over-temperature safety devices.
Key Benefits:- Universal Compatibility: Serves as a perfect direct replacement for B689 thermal cutouts in older equipment.
- Precise 291°F Rating: Accurately calibrated to trip at 144°C, offering a strict safety ceiling for heating elements.
- High Amperage Capacity: Rated for 15 Amp thermal protection at 120V to accommodate standard residential and commercial loads.
- Direct OEM Alternative: Frequently utilized in Carrier, Utica, and Dunkirk applications requiring a 144C rollout limit.
- Is the Supco STC4283 a manual reset switch? No, this is a one-time operation fusible link. Once it trips due to an over-temperature condition, the part must be replaced to restore operation.
- Will this work in place of a B689? Yes, the STC4283 is specifically engineered as the standard replacement for the B689 model.
- Can this be used for duct heater protection? This component is the primary thermal cutoff for Supco DH series electric duct heaters and similar HVAC heating assemblies.
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: $2.28
-65%$2.28
$0.80Supco STC4283 Thermal Cutoff
As a veteran tech, you know that keeping high-limit circuits safe is non-negotiable. The Supco STC4283 Thermal Cutoff is a critical safety component designed for precision over-temperature protection. Engineered to open the circuit at a 291°F (144°C) thermal threshold, this non-resettable in-line fusible link serves as the primary safeguard for Supco DH series duct heaters and various HVACR applications. Built to handle 15 Amps at 120 VAC or 10 Amps at 250 VAC, the STC4283 provides the industrial-grade reliability needed to prevent catastrophic equipment failure during a rollout or blower failure event.
The Supco STC4283 is the direct replacement for B689, ensuring a seamless fit for legacy systems without the need for field modifications. Whether you are servicing office machines, portable heaters, or commercial duct systems, this high-limit safety switch offers a definitive response to thermal runaway. Its compact design allows for versatile mounting, making it a staple in any contractor's truck stock for emergency repairs and preventative maintenance calls involving over-temperature safety devices.
Key Benefits:- Universal Compatibility: Serves as a perfect direct replacement for B689 thermal cutouts in older equipment.
- Precise 291°F Rating: Accurately calibrated to trip at 144°C, offering a strict safety ceiling for heating elements.
- High Amperage Capacity: Rated for 15 Amp thermal protection at 120V to accommodate standard residential and commercial loads.
- Direct OEM Alternative: Frequently utilized in Carrier, Utica, and Dunkirk applications requiring a 144C rollout limit.
- Is the Supco STC4283 a manual reset switch? No, this is a one-time operation fusible link. Once it trips due to an over-temperature condition, the part must be replaced to restore operation.
- Will this work in place of a B689? Yes, the STC4283 is specifically engineered as the standard replacement for the B689 model.
- Can this be used for duct heater protection? This component is the primary thermal cutoff for Supco DH series electric duct heaters and similar HVAC heating assemblies.
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.
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Description
As a veteran tech, you know that keeping high-limit circuits safe is non-negotiable. The Supco STC4283 Thermal Cutoff is a critical safety component designed for precision over-temperature protection. Engineered to open the circuit at a 291°F (144°C) thermal threshold, this non-resettable in-line fusible link serves as the primary safeguard for Supco DH series duct heaters and various HVACR applications. Built to handle 15 Amps at 120 VAC or 10 Amps at 250 VAC, the STC4283 provides the industrial-grade reliability needed to prevent catastrophic equipment failure during a rollout or blower failure event.
The Supco STC4283 is the direct replacement for B689, ensuring a seamless fit for legacy systems without the need for field modifications. Whether you are servicing office machines, portable heaters, or commercial duct systems, this high-limit safety switch offers a definitive response to thermal runaway. Its compact design allows for versatile mounting, making it a staple in any contractor's truck stock for emergency repairs and preventative maintenance calls involving over-temperature safety devices.
Key Benefits:- Universal Compatibility: Serves as a perfect direct replacement for B689 thermal cutouts in older equipment.
- Precise 291°F Rating: Accurately calibrated to trip at 144°C, offering a strict safety ceiling for heating elements.
- High Amperage Capacity: Rated for 15 Amp thermal protection at 120V to accommodate standard residential and commercial loads.
- Direct OEM Alternative: Frequently utilized in Carrier, Utica, and Dunkirk applications requiring a 144C rollout limit.
- Is the Supco STC4283 a manual reset switch? No, this is a one-time operation fusible link. Once it trips due to an over-temperature condition, the part must be replaced to restore operation.
- Will this work in place of a B689? Yes, the STC4283 is specifically engineered as the standard replacement for the B689 model.
- Can this be used for duct heater protection? This component is the primary thermal cutoff for Supco DH series electric duct heaters and similar HVAC heating assemblies.
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.
