Bussmann / Eaton PV Fuses

Passive Components > PV Fuses

Bussmann Solar Fuses

Bussmann / Eaton PV Fuses

Bussmann / Eaton offers a range of photovoltaic (PV) fuses specifically designed for the protection and isolation of solar panel systems. These fuse links, available in a 10mm x 38mm package, are engineered to handle low overcurrents commonly found in faulted PV string arrays, including reverse current and multi-array faults. They feature a 1000VDC rated voltage and a breaking capacity of 33kAdc, with current ratings ranging from 1A to 15A.

Solar Photovoltaic (PV) systems have evolved into a mature, sustainable and adaptive technology. The growth in installations and demand for PV systems necessitate effective electrical protection. PV systems, as with all electrical power systems, must have appropriate overcurrent and overvoltage protection. Eaton’s Bussmann series photovoltaic gPV solar fuses are optimized for DC protection of solar panels, combiner boxes, recombiner units, and battery storage, with options that support up to 1500VDC systems.

Development of sophisticated solar panel systems has accelerated the demand for high performance fuses. The short-circuit conditions associated with solar panels do not allow for sufficient current to open a standard fuse in a way that effectively isolates faulted photovoltaic (PV) strings. The new Cooper Bussmann® PV Fuse line provides a full range of protection that traditional fuses cannot. Bussmann Fuse Links are specifically designed for the protection and isolation of photovoltaic strings. The fuse links are capable of interrupting low overcurrents associated with faulted PV (reverse current, multi-array fault) string arrays.

Product Features:

• Meets UL and IEC photovoltaic standards
• Low watt loss for increased energy efficiency
• Low-temperature rise for precise sizing
• Available with in-line crimp terminal versions for easy application in wire harnesses

Applications:

• Combiner boxes
• Inverters
• PV wire harnesses

Core Features:

• Global acceptance with UL and IEC standards compliance
• Crimp terminals eliminate the need for separate fuse holders
• Fast-acting protection under low fault current conditions, ideal for PV systems
• Versatile mounting options

Eaton has developed these fuse links in collaboration with solar manufacturers, ensuring effective protection of photovoltaic systems with high DC voltages and low fault currents. These fuses are critical for ensuring the safety and efficiency of solar power systems.

Example Products:

• Bussmann XL Series Photovoltaic Fuses
• PV-100A-01XL: 100A, 1000VDC, gPV, UL, IEC, with indicator, blade connections
• PV-125A-01XL-B: 125A, 1500VDC, gPV, bolted connection, UL, IEC
• PV-200A-2XL-15: 200A, 1500VDC, gPV, UL, IEC, with indicator, blade connections