JUNW K541/K542 Fuse Holder

Overall Product Introduction 
1.Core Purpose & Exclusive Matching
These dedicated fuse holders are specially designed for the JUNW S31 Outdoor Electric Connection Box, perfectly integrating with its S31 terminal block system to form a complete outdoor protection solution. Equipped with integrated connection legs, they enable direct and secure connection to the S31 box’s terminal block without additional adapters, simplifying on-site wiring and improving installation efficiency. The product features a triple neutral design with 3 independent connection terminals, supporting neutral branching for up to 3 derivations—ideal for complex low-voltage distribution networks requiring flexible power tapping.
2.Material & Safety Compliance
Constructed from high-grade, flame-retardant synthetic material, the bases deliver excellent electrical insulation and fire resistance. They are engineered to withstand harsh outdoor conditions, matching the S31 box’s IK10 impact resistance and robust environmental adaptability, ensuring reliable operation in rain, humidity, and mechanical shock environments.
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Model K541: 14×51 Fuse Holder
The K541 is a compact fuse base tailored for 14×51 cylindrical fuse cartridges, compatible with AD15 and 30A fuse ratings. Its compact size makes it ideal for space-constrained layouts within the S31 connection box, supporting precise wiring for small-to-medium current circuits. Fitted with connection legs, it locks firmly into the S31 terminal block for stable current transmission. The triple neutral design maximizes wiring flexibility, making it the go-to choice for residential and small commercial S31-based outdoor distribution projects where space and reliability are critical.
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Model K542: 22×58 Fuse Holder
The K542 is a heavy-duty fuse base engineered for 22×58 cylindrical fuses, supporting AD30, 45, and 60A high-current ratings. Its larger contact chamber and reinforced internal structure ensure superior current carrying capacity and heat dissipation, perfectly matching the S31 box’s 45kVA maximum power rating. Equipped with robust connection legs, it provides a secure, low-resistance link to the S31 terminal block, minimizing power loss. This base is ideal for industrial and high-load outdoor applications, delivering reliable overcurrent and short-circuit protection for the S31 connection box.