PV-1500-20A
1500VDC 20A gPV fuse for standard residential and commercial solar string protection.
Product Overview
Description
The PV-1500-20A is a gPV-classified fuse designed for standard solar string protection in residential and commercial installations.
With 1500VDC rating, this fuse supports modern high-voltage solar systems while the 20A rating is ideal for typical strings.
The compact 10x85mm size fits standard PV fuse holders used in combiner boxes.
Product Series
PV
Primary Application
Residential solar string protection
Key Features
- 1500VDC rating for modern PV systems
- gPV classification per IEC 60269-6
- 20A rating for standard string sizes
- Full-range protection for all fault currents
- High temperature rating for rooftop installations
- Compact size fits standard PV fuse holders
Specifications
| Voltage Rating | 1500V DC |
|---|---|
| Current Rating | 20A |
| Breaking Capacity | 20kA @ 1500V DC |
| Size | 10x85mm (10x38 compatible) |
| Mounting | PV fuse holder or inline |
| Operating Temperature | -40°C to +90°C |
| Time-Current | gPV full range |
| Standards | IEC 60269-6, UL 248-19 |
Applications
Residential solar string protection
Renewable energy systems
Commercial rooftop installations
Electronic system design
Solar combiner boxes
Renewable energy systems
PV inverter DC input
Electronic system design
Distributed solar systems
Renewable energy systems
FAE Expert Insights
"The PV-1500-20A is our most popular PV fuse for standard string applications. The 20A rating is perfect for typical residential strings with 8-12A Isc. The 1500V rating future-proofs installations as the industry moves to higher voltages. I've specified this fuse for hundreds of residential and small commercial installations with excellent results. The gPV classification ensures reliable fault clearing even at low overcurrents typical of PV faults. Always remember to size at 1.5-1.8x Isc, not Imp."
Standard 1500V/20A PV fuse for residential and commercial string protection
— Jennifer Liu, BeiLuo
Frequently Asked Questions
When should I use 20A vs 15A for PV strings?
Use 20A for: 1) Standard strings with 10-13A Isc; 2) Systems in moderate climates; 3) Cost-optimized designs. Use 15A for: 1) Smaller strings with 8-10A Isc; 2) High-temperature installations where derating needed; 3) Conservative designs with extra safety margin. Calculate: Fuse = 1.5-1.8 x Isc. For 10A Isc: 15-18A, so 20A is appropriate. For 8A Isc: 12-14.4A, so 15A is better choice.
Calculate 1.5-1.8x Isc. Use 20A for standard strings, 15A for smaller strings or high-temperature.