IGOYE Waterproof In-Line Solar Fuse Holder 15A 1000V (Pack of 5) — MC4-Compatible, IP67 Weatherproof

IGOYE waterproof in-line fuse holder is a compact, IP67-rated connector that houses a 15A, 1000V PV fuse to protect and simplify wiring for solar panel strings.

Designed for photovoltaic installations where durable, weatherproof protection is essential, this in-line fuse holder accepts a standard 10×38mm fuse and mates with MC4-compatible connectors. Built from flame-retardant PC/PPO and silver-plated copper conductors, it tolerates wide temperature swings and resists dust and moisture for reliable outdoor performance. Each pack contains five matching male and female pairs to service multiple panel strings or spare circuits.

How does this fuse holder improve safety on outdoor solar arrays?

The sealed construction prevents water ingress and the UL94-V0 flame-retardant housing reduces fire risk under fault conditions. Using a properly rated 15A fuse inside the holder isolates faults quickly, limiting damage to wiring and panels without disturbing the rest of the array.

• IP67 waterproof rating keeps contacts dry in rain and snow
• UL94-V0 material lowers flammability under overload
• 15A rating matches mid-range string currents for protection
• Silver-plated copper conductors reduce resistance and heat

Will it fit my existing panels and cabling?

The IGOYE holder uses MC4-style terminals and supports cable cross-sections from 2.5 to 6 mm2, so it connects easily to most residential and small commercial PV leads. Its in-line format accepts a 10×38 mm fuse core, a common photovoltaic-sized fuse, making replacement and compatibility straightforward.

• MC4-compatible terminals for standard PV connectors
• Accepts 2.5–6 mm2 cable for common solar conductors
• Fits 10×38 mm fused cores used in many PV systems
• Rated up to DC 1000 V for modern array voltages

How durable is the holder under harsh outdoor conditions?

IGOYE engineered the shell with PC/PPO materials to withstand temperatures from -40°C to +105°C and to resist UV and mechanical wear. The tested 6000V dielectric withstanding value (1 min, 50Hz) and low contact resistance (under 5 mΩ) ensure stable electrical performance even after prolonged exposure.

• Wide operating temperature range: -40°C to +105°C
• Low in-line resistance (<5 mΩ) for efficient conduction
• Test voltage 6000V for robust insulation verification
• Durable locking design prevents accidental disconnection

How do I install and maintain these in-line fuse holders?

Installation is tool-assisted but straightforward: insert the correct 10×38 mm fuse, lock the male and female MC4-style halves, and secure the cable conductors. Periodic visual inspections for seal integrity and cleaning of contacts if exposed to corrosive environments will keep performance optimal.

• Insert fuse core and snap male/female connectors together
• Use approved cable sizes and torque recommendations
• Inspect seals and connections during routine system checks
• Replace fuse with same rating (15A, 10×38 mm) when blown

Who is this for? Installers, system integrators, and DIY solar owners who need a compact, weatherproof way to add overcurrent protection to PV strings will find the IGOYE in-line fuse holder useful. Its MC4 compatibility and broad temperature tolerance make it suitable for rooftop arrays, ground-mounted systems, small commercial installations, and off-grid setups where dependable, replaceable fusing is required. Because this product is sold as a pack of five, it’s also convenient for multi-string sites or for stocking spare parts for maintenance crews.