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1500V PV Square Fuse Holder
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1500V PV Square Fuse Holder

1500V PV Square Fuse Holder

The 1500V DC Square Body PV Fuse Holder (CFPV-H Series) is a heavy-duty, high-voltage mounting solution engineered for utility-scale photovoltaic systems and Battery Energy Storage Systems (BESS).

Description

Product Overview

 

The 1500V DC Square Body PV Fuse Holder (CFPV-H Series) is a heavy-duty, high-voltage mounting solution engineered for utility-scale photovoltaic systems and Battery Energy Storage Systems (BESS). Designed specifically for bolt-on square body gPV fuse links, this holder ensures reliable electrical isolation, arc containment, and low-loss contact performance under continuous high-current loads up to 630A. 

 

Technical Specifications & Dimension Database

 

Mounting Type: Heavy-Duty Bolt-On Installation
Housing Material: High-Strength Flame-Retardant Thermoset Polymer (DMC/BMC Compound)
Contact Material: T2 Pure Copper with High-Thickness Silver Plating (Thickness >= 5 microns)
Operating Temperature: -40 Degree C to +125 Degree C (De-rating curves available for >65 Degree C)
Dielectric Strength: 5000V AC Isolation Test Pass
Standards Compliance: IEC 60269-6, UL 4248-19, RoHS, CE Certified 

 

Performance Advantages & Manufacturing Data

 

Industrial-Grade Thermoset Insulation: The housing is molded from bulk molding compound (BMC/DMC) thermoset polymer. Unlike standard thermoplastics, it does not melt or deform even under extreme temperatures up to +125 Degree C, providing a Comparative Tracking Index (CTI >= 600V) for maximum safety against high-voltage DC tracking.
Engineered for Low Temperature Rise: Featuring reinforced T2 copper contacts coated with a >= 5-micron silver layer, the contact resistance is restricted to <= 0.2 mOhms. This ultra-low resistance minimizes power dissipation (W) and prevents thermal runaway at maximum 630A continuous duty.
Anti-Vibration Bolt-On Architecture: Designed with heavy mechanical torque tolerances to withstand intense vibration in centralized inverter stations and rugged outdoor solar farms. The solid bolt fixation guarantees consistent, long-term contact pressure. 

 

Customization & OEM/ODM Services

 

We provide comprehensive custom engineering solutions for global solar brands, electrical switchboard builders, and EPC procurement teams:


Terminal Cross-Section Adaptations: Custom modification of copper busbar connection widths and bolt hole diameters (M10/M12 selection) to match localized cable sizing requirements.
High-Durability Laser Etching: Permanently etch your custom brand logo, internal part numbers, factory barcodes, and country-specific safety warnings on the side panels.
Pre-Assembled Phase Kits: Multi-phase factory linking and specialized multi-pole bracket assemblies to accelerate installation workflows on-site. 

 

Why Partner with Chifeng Electric?

 

Established in 1988, Zhejiang Chifeng Electric Co., Ltd. is a premier manufacturer dedicated to pioneering fuse technology and delivering high-reliability circuit safety solutions globally.


Decades of Industry Expertise:
Backed by over 35 years of specialized fuse manufacturing experience, trusted by 1,200+ clients worldwide.


Robust Technical Barriers:
Armed with 48 authorized patents (including core invention patents) and 159 qualification certificates, supported by a 65% automation rate in production.


Global Compliance & Certifications:
Formally ISO9001 certified. All products fully comply with IEC 60269 and GB 13539 standards, and hold prestigious international safety marks including CCC, CE, CB, TÜV Rheinland, and UL.


End-to-End Capability:
Operating from a 16,000 m² state-of-the-art facility, we house an in-house R&D center, a dedicated testing lab, and high-precision breaking capacity test systems.


Direct-from-Manufacturer Advantage:
Factory-direct sales model minimizes intermediary markups, ensuring top-tier quality with optimal cost efficiency. 

 

Packaging, Logistics & Supply Chain Details

 

Industrial Export Packaging: Securely packed with shock-absorbing EPE foam inserts inside heavy-duty, double-wall corrugated master cartons. Heavy items are palletized on heat-treated ISPM-15 compliant wooden pallets for safe forklift handling.
Comprehensive Incoterms: Supporting FOB, CIF, CFR, EXW, and DDP (Direct door-to-door shipping with full customs clearance and import duties paid for EU, US, and Australian markets).


Production & Delivery Lead Times:
Engineering Samples for Approval: 3 to 5 Days
Bulk Orders (5,000+ pieces): 20 to 25 Days
Primary Shipping Ports: Shipped from key Chinese industrial ports: Ningbo Port, Shanghai Port, or Qingdao Port. Full trace documentation (MTC/Mill Test Certificates, Packing Lists, Certificates of Origin) is provided automatically. 

 

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FAQ

 

Q: What specific advantage does the thermoset BMC housing offer over standard thermoplastic in 1500V applications?

A: Thermoset Bulk Molding Compound (BMC) provides superior structural stability at high temperatures. Unlike thermoplastic, it does not have a melting point; it will not soften or deform even during localized high-temperature faults or intense 1500V DC electric arcs, ensuring full terminal isolation.

Q: What is the specific contact resistance of the 630A model (CFPV-H3LB) to prevent heat buildup inside inverter cabinets?

A: The CFPV-H3LB model maintains an ultra-low contact resistance of <= 0.2 mOhms due to its precision-machined T2 copper base and a heavy >= 5-micron silver plating. This limits localized temperature rise well below the 45 Kelvin limit specified by IEC 60269 standards at full rated current.

Q: What is the Minimum Order Quantity (MOQ) for custom terminal thread or bolt hole modifications?

A: For custom-engineered structural modifications (such as specific busbar drilling or custom thread sizes), our standard MOQ is 500 pieces per run. Standard catalog models like the CFPV-H1XLB or H2XLB are available with flexible lower MOQs for initial project integration.

Q: Can you provide third-party type-test reports required for utility-scale solar grid connection approvals?

A: Yes. We can provide full laboratory type-test reports, including temperature rise tests, insulation resistance verification, and dielectric breakdown results. These documents assist your engineering team in securing rapid EPC and local utility clearance.

Q: How do you protect these heavy copper-contact fuse holders against corrosion during ocean transit and long-term field storage?

A: Every unit is packed with industrial desiccant bags inside sealed moisture-barrier polybags. The >= 5-micron silver plating on the T2 copper contacts provides excellent long-term oxidation and tarnish resistance, even in humid tropical or coastal environments.

Q: Does your factory implement automated testing to prevent loose assembly or torque failures across large orders?

A: Yes. Our ISO 9001 assembly lines utilize automated pneumatic torque-calibration systems and optical sorting sensors. Every single fuse holder undergoes structural integrity checks and electrical continuity validation before automated final packaging.

Q: Are these holders compatible with third-party square body fuses from other international brands?

A: Yes. Our CFPV-H Series is built strictly in accordance with international standard dimensions for high-voltage square body gPV fuses. As long as the fuse link complies with standard dimensions (such as standard size 1XL, 2XL, or 3L), it will interface perfectly with our bolt-on slots.

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