Mersen A150X70-4 Solar Dc Fuse 70A 1500V

Product Description

The MERSEN A150X70-4 is a 70-amp, 1500-volt DC fuse designed for overcurrent protection in high-voltage solar photovoltaic systems. This fuse provides reliable circuit protection where DC voltages reach the upper limits of modern utility-scale and commercial PV installations. At 1500 volts DC, it is suited for string-level or combiner-box protection in large solar arrays. Licensed electricians and solar PV installers are the primary trades working with this component during system commissioning and service.

The A150X70-4 is applied in commercial and utility-scale solar PV installations where 1500-volt DC system architecture is used. This voltage class is common in large ground-mount and rooftop systems designed to reduce conductor runs and balance-of-system costs. The fuse fits into compatible fuse holders or combiner boxes rated for 1500-volt DC service. It is not intended for AC circuits or standard residential 600-volt DC systems.

Key Features

• 70-amp continuous current rating for string-level overcurrent protection
• 1500-volt DC rating supports modern high-voltage PV system architecture
• Designed for solar photovoltaic combiner box and string protection applications
• Provides fast, reliable interruption to protect conductors and system components from overcurrent faults

Compatibility

Designed as an OEM-style replacement or service fuse for 1500-volt DC solar PV fuse holders and combiner boxes rated for this voltage and current class.

Installation Notes

Installation must be performed by a licensed electrician or qualified solar PV installer in accordance with NEC Article 690 requirements for photovoltaic systems. De-energize and isolate the PV array and all associated DC circuits before servicing or replacing fuses. Verify that the fuse holder and combiner box are rated for 1500 volts DC before installing this fuse. Never replace a DC-rated fuse with an AC-rated fuse of the same amperage.

Technical Specifications

• Current Rating: 70 amps
• Voltage Rating: 1500 volts DC
• UPC: 78200194981

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: A150X70-4