IATF16949 Certified Battery Fuse Box for Automotive and EV Applications
Product Overview
Our Battery Fuse Box (models DOBXS4-1A and DOBXS5-1F) is designed for automotive and new energy vehicle wiring systems. It integrates a main bolt-type mega fuse and standard blade fuses (5A-30A optional) in a sealed, flame retardant PA66 enclosure. The high conductivity copper/brass busbar with tin/nickel/zinc plating ensures reliable power distribution. Suitable for -40°C to +125°C environments, it meets ISO 16750 and USCAR-2 vibration standards. IP67/IP6K9K rated when sealed connectors are used. Backed by IATF16949:2016 certification (URS certificate #0596976), our fuse box is trusted by major OEMs including Chery, Foton, and Wuling.
Key Selling Points
- Flame Retardant & Waterproof Enclosure: PA66 shell with sealed cover provides IP67-level protection, ensuring safe operation in harsh underhood and battery compartment environments.
- Wide Temperature Range (-40°C to +125°C): Reliable performance in extreme climates, compliant with automotive Grade 0 requirements.
- High Conductivity Busbar: Copper/brass main busbar with tin/nickel/zinc plating minimizes voltage drop and heat generation.
- Flexible Fuse Configuration: Accepts bolt-type mega fuse (main) and standard blade fuses (5A-30A) for customized circuit protection.
- IATF16949 Certified Quality: Manufactured under strict automotive quality management system; designated supplier to leading auto OEMs and wiring harness manufacturers.
Technical Specifications
| Parameter | Value |
|---|
| Working Voltage | 12V DC / 24V DC |
| Main Busbar Material | High conductivity copper/brass, plated tin/nickel/zinc |
| Main Fuse | Bolt-type mega fuse (rated current customizable) |
| Auxiliary Fuse | Standard blade fuses: 5A/10A/15A/20A/30A optional |
| Shell Material | Flame retardant plastic (PA66) |
| Ingress Protection | IP67 (with sealed connectors); waterproof & dustproof |
| Ambient Temperature | -40°C ~ +125°C |
| Vibration Standard | ISO 16750, USCAR-2 |
| Installation | Fixed mounting holes, direct battery positive connection |
Models and Options
- DOBXS4-1A – Standard configuration (details on request)
- DOBXS5-1F – Enhanced configuration (details on request)
Both models share the same robust design and specifications. Contact our sales team for specific differences in current rating or accessory options.
Materials and Structure
The fuse box shell is injection-molded from PA66 flame retardant plastic. The sealed cover with compression gasket ensures waterproof and dustproof performance. The main busbar is made of high conductivity copper or brass, with surface plating options of tin, nickel, or zinc for corrosion resistance. All metal contacts are designed for reliable electrical connection under vibration.
Applications
Suitable for passenger cars, commercial vehicles, and new energy vehicles. Used in battery pack junction boxes, engine compartment fuse panels, and wiring harness distribution points. Compatible with automotive wiring harnesses, battery terminals, and ECUs. Operates reliably in underhood environments with exposure to moisture, dust, and temperature extremes.
Customization
We offer OEM/ODM services for custom fuse ratings, terminal types, and cable lengths. Our in-house mold development and precision manufacturing enable fast turnaround. Contact us with your requirements.
Case Study
Client: Automotive OEM (based in China)
Duration: 8 years (designated supplier)
Application: OEM vehicle manufacturer and automotive wiring harness factories
Result: Delivered cost-saving solutions; recognized as a designated supplier by major vehicle OEMs and wiring harness manufacturers.
Frequently Asked Questions
- What certifications does your fuse box hold?
Our factory is IATF16949:2016 certified (URS #0596976). The fuse box itself meets ISO 16750 and USCAR-2 vibration standards.
- What is the operating temperature range?
-40°C to +125°C, suitable for automotive underhood applications.
- Is the fuse box waterproof?
Yes, the sealed cover provides waterproof and dustproof protection. With sealed connectors it achieves IP67/IP6K9K.
- What fuse types can be used?
Main fuse: bolt-type mega fuse (custom rating). Auxiliary fuses: standard blade fuses 5A-30A.
- What is the MOQ and delivery time?
MOQ is 2 units. Delivery terms FOB/CIF. Payment: 30% T/T advance, 70% before shipment.
- Can I get samples for testing?
Yes, we can arrange pre-shipment testing and samples subject to agreement.
- Do you support custom terminal configurations?
Yes, we offer OEM customization. Contact us with your specifications.
- What is the busbar material and plating?
High conductivity copper or brass with tin/nickel/zinc plating for corrosion resistance.
Inquiry Information
Contact Vicky at Zhejiang Daou Electronics Co., Ltd.
Email: jialuzhou101@gmail.com
Tel/WhatsApp: +86 13645876878
Address: Puqi Characteristic Industrial Zone, Yueqing City, Zhejiang Province, China
Website: www.zjdaou.com
Product Images
✓ Verified Elite Supplier
