Fuse insert VCX CF 10PV 20A 10x38 mm gPV DC fuse element for photovoltaic systems

VCX CF 10PV 20A is a gPV-rated 10x38 mm fuse insert designed for direct current (DC) protection in photovoltaic systems. Intended for use in PV combiner boxes, inverter inputs and other solar power applications, this fuse element provides overcurrent interruption for PV strings and DC equipment operating at photovoltaic voltages. The compact 10x38 mm format fits standard holders and fuse blocks used in many solar installations.

Advantages

The fuse element delivers reliable overcurrent protection specifically for PV circuits, with a gPV classification that meets the functional needs of solar DC systems. Its 20 A rating offers a balance between conductor protection and system continuity for typical string-level applications. The standardized 10x38 mm form factor simplifies replacement and integration into existing fuse holders and combiner assemblies.

Suitable for

• DC protection in photovoltaic combiner boxes
• Inverter DC input protection for solar arrays
• Protection of PV string conductors and modules
• Replacement of blown gPV fuse elements in 10x38 mm holders

Key specifications

• Rated current: 20 A
• Form factor: 10 x 38 mm fuse element
• Application: DC circuits in photovoltaic systems (gPV-rated)
• Use case: Overcurrent/short-circuit protection for PV strings and DC equipment

How to use

Install the fuse insert into a compatible 10x38 mm fuse holder or combiner box fuse slot following the system manufacturer’s instructions. Ensure the circuit is de-energized before performing installation or replacement. Verify that the fuse rating matches the design current and coordination requirements of the PV string and downstream equipment. After inserting the fuse, confirm secure contact and restore DC supply according to safe work procedures.

Usage recommendations

For safe and reliable operation, coordinate the 20 A fuse rating with conductor cross-section, upstream and downstream protection devices, and the PV system's maximum operating voltage. Replace blown fuse elements only with identical gPV-rated 10x38 mm inserts and follow local electrical codes and manufacturer guidance.