York S1-FRNR35 Fuse
For industrial HVACR installations, the York S1-FRNR35 Fuse is the standard for RK5 Class fuse protection. This Fusetron dual-element cartridge is engineered specifically for circuits with high inrush currents, common in condenser fans and compressor motors. Operating at 250V AC with a 35 amp rating, this time-delay fuse provides a minimum of 10 seconds of delay at 500% of its rated current. This prevents nuisance blowing during the heavy inductive loads of motor startups while maintaining a 200 kA interrupting rating for high-level short-circuit protection.
Built with a fiberglass tube and precision-machined ferrule ends, the S1-FRNR35 is a direct OEM-spec replacement for many York and Johnson Controls systems. As a current-limiting fuse, it restricts the let-through energy to downstream components, significantly reducing the risk of equipment damage during a terminal fault. When you are out on a service call and find a blown disconnect, swapping in this 35A 250V fuse ensures the system stays compliant with UL 248-12 standards without compromising the selective coordination of your power panel.
Key Benefits:- Enhanced Motor Protection: The dual-element design handles temporary overloads, protecting expensive compressor windings from burnout.
- Superior Interrupt capacity: Rated at 200,000 RMS Symmetrical Amps for heavy-duty fault current interruption.
- OEM Compatibility: Exact fit for York S1-FRNR35 requirements in residential and commercial air handlers and heat pumps.
- Rejection Feature: Class RK5 construction ensures the correct fuse is used in rejection-style fuse clips.
- Energy Efficiency: Designed for low internal resistance to minimize heat generation in the disconnect box.
- Can I use a standard FRN fuse instead of this FRN-R? No. The 'R' signifies a rejection feature. While an FRN-R will fit in a standard clip, a standard FRN will not fit into a rejection-style clip found in modern HVAC disconnects.
- Why is a dual-element fuse better for compressors? Compressors draw massive amperage at startup. A single-element fuse would blow immediately, whereas this dual-element 35A fuse allows that surge to pass while still being sensitive to sustained overcurrent.
- How do I verify if this fuse is blown? Use your multimeter on the ohms setting. A reading of infinity (O.L.) indicates the link is broken and the fuse needs replacement.
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: $12.74
-65%$12.74
$4.46York S1-FRNR35 Fuse
For industrial HVACR installations, the York S1-FRNR35 Fuse is the standard for RK5 Class fuse protection. This Fusetron dual-element cartridge is engineered specifically for circuits with high inrush currents, common in condenser fans and compressor motors. Operating at 250V AC with a 35 amp rating, this time-delay fuse provides a minimum of 10 seconds of delay at 500% of its rated current. This prevents nuisance blowing during the heavy inductive loads of motor startups while maintaining a 200 kA interrupting rating for high-level short-circuit protection.
Built with a fiberglass tube and precision-machined ferrule ends, the S1-FRNR35 is a direct OEM-spec replacement for many York and Johnson Controls systems. As a current-limiting fuse, it restricts the let-through energy to downstream components, significantly reducing the risk of equipment damage during a terminal fault. When you are out on a service call and find a blown disconnect, swapping in this 35A 250V fuse ensures the system stays compliant with UL 248-12 standards without compromising the selective coordination of your power panel.
Key Benefits:- Enhanced Motor Protection: The dual-element design handles temporary overloads, protecting expensive compressor windings from burnout.
- Superior Interrupt capacity: Rated at 200,000 RMS Symmetrical Amps for heavy-duty fault current interruption.
- OEM Compatibility: Exact fit for York S1-FRNR35 requirements in residential and commercial air handlers and heat pumps.
- Rejection Feature: Class RK5 construction ensures the correct fuse is used in rejection-style fuse clips.
- Energy Efficiency: Designed for low internal resistance to minimize heat generation in the disconnect box.
- Can I use a standard FRN fuse instead of this FRN-R? No. The 'R' signifies a rejection feature. While an FRN-R will fit in a standard clip, a standard FRN will not fit into a rejection-style clip found in modern HVAC disconnects.
- Why is a dual-element fuse better for compressors? Compressors draw massive amperage at startup. A single-element fuse would blow immediately, whereas this dual-element 35A fuse allows that surge to pass while still being sensitive to sustained overcurrent.
- How do I verify if this fuse is blown? Use your multimeter on the ohms setting. A reading of infinity (O.L.) indicates the link is broken and the fuse needs replacement.
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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Shipping & Returns
Description
For industrial HVACR installations, the York S1-FRNR35 Fuse is the standard for RK5 Class fuse protection. This Fusetron dual-element cartridge is engineered specifically for circuits with high inrush currents, common in condenser fans and compressor motors. Operating at 250V AC with a 35 amp rating, this time-delay fuse provides a minimum of 10 seconds of delay at 500% of its rated current. This prevents nuisance blowing during the heavy inductive loads of motor startups while maintaining a 200 kA interrupting rating for high-level short-circuit protection.
Built with a fiberglass tube and precision-machined ferrule ends, the S1-FRNR35 is a direct OEM-spec replacement for many York and Johnson Controls systems. As a current-limiting fuse, it restricts the let-through energy to downstream components, significantly reducing the risk of equipment damage during a terminal fault. When you are out on a service call and find a blown disconnect, swapping in this 35A 250V fuse ensures the system stays compliant with UL 248-12 standards without compromising the selective coordination of your power panel.
Key Benefits:- Enhanced Motor Protection: The dual-element design handles temporary overloads, protecting expensive compressor windings from burnout.
- Superior Interrupt capacity: Rated at 200,000 RMS Symmetrical Amps for heavy-duty fault current interruption.
- OEM Compatibility: Exact fit for York S1-FRNR35 requirements in residential and commercial air handlers and heat pumps.
- Rejection Feature: Class RK5 construction ensures the correct fuse is used in rejection-style fuse clips.
- Energy Efficiency: Designed for low internal resistance to minimize heat generation in the disconnect box.
- Can I use a standard FRN fuse instead of this FRN-R? No. The 'R' signifies a rejection feature. While an FRN-R will fit in a standard clip, a standard FRN will not fit into a rejection-style clip found in modern HVAC disconnects.
- Why is a dual-element fuse better for compressors? Compressors draw massive amperage at startup. A single-element fuse would blow immediately, whereas this dual-element 35A fuse allows that surge to pass while still being sensitive to sustained overcurrent.
- How do I verify if this fuse is blown? Use your multimeter on the ohms setting. A reading of infinity (O.L.) indicates the link is broken and the fuse needs replacement.
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.
