Aviation Copper Fuse Holder BZ-2 |

High-Current, High-Reliability Fuse Mounting Solution

Product Overview

The YM Aviation Copper Fuse Holder BZ-2 is a professional-grade mounting component engineered to securely house and connect BZ-2 series fuses (60A, 80A, 100A, 150A) in high-vibration, mission-critical electrical systems. Designed for aviation, drone, and heavy industrial applications, it ensures reliable electrical contact, safe fuse replacement, and robust mechanical support. This holder complements our complete circuit protection ecosystem, which includes the BZ-2 Copper Fuse itself, as well as critical control components like Military Metal Relays and Industrial Power Relays. Its primary function is to provide a stable, low-resistance interface that maximizes fuse performance and system safety.

Core Advantage: Precision-engineered copper construction and a secure locking mechanism that maintains optimal electrical contact under extreme vibration, preventing thermal runaway and connection failure.

Product Images

High-quality images展示 the holder's construction, fuse integration, and packaging for assessment.

Technical Specifications

Model: BZ-2 Fuse Holder
Compatible Fuse: BZ-2 Series Copper Fuses (60A, 80A, 100A, 150A)
Primary Material: High-Conductivity Copper Alloy (Terminals/Body)
Electrical Ratings:
- Current Rating: Matches compatible fuse rating (up to 150A continuous).
- Voltage Rating: Suitable for standard 28V DC aircraft systems and common industrial voltages, compatible with systems using Automotive Relays and New Energy Relays.
- Contact Resistance: Extremely low (comparable to High-Performance Relay contacts, typically ≤1mΩ for the holder interface) to minimize voltage drop and power loss.
Mechanical & Environmental:
- Mounting: Designed for secure panel or DIN-rail mounting (mounting style may vary).
- Connection Type: Screw terminals or heavy-duty solder lugs for secure wire attachment.
- Vibration Resistance: Meets or exceeds MIL-STD-810 requirements for high-vibration environments.
- Insulation: High-grade, flame-retardant insulating housing.
- Sealing Option: Available with ingress protection (IP) seals for dust and moisture resistance in demanding applications.
Safety & Compliance: Designed to facilitate safe fuse insertion/removal without tool contact with live parts.

Product Features & Advantages

Optimized Thermal Management: Bulk copper construction acts as a heat sink, dissipating heat generated at the fuse contact points, thereby increasing fuse life and system reliability.
Anti-Vibration Locking Design: Positive-lock mechanism prevents fuse "walking out" or loosening due to constant vibration, a critical feature in aviation and railway applications.
Low Insertion Force, High Retention: Engineered for easy fuse replacement while maintaining exceptionally high contact pressure for minimal electrical resistance.
Corrosion-Resistant Contacts: Terminal contacts are often plated (e.g., tin or silver) to prevent oxidation and ensure consistent performance over time, similar to the plating used on our PCB Board Relay terminals.
Visual Indicator Compatibility: Design allows for potential integration of blown fuse indicators (optional), enhancing maintenance efficiency.
Universal Compatibility: Precisely machined to ensure perfect compatibility with the standard BZ-2 fuse dimensions, guaranteeing fit and function.

Our Advantage: YM's expertise in precision metal fabrication for Metal Sealing Relays and Polarized Relays translates directly into the manufacturing tolerances and material science applied to the BZ-2 Fuse Holder, ensuring unmatched consistency and durability.

How to Install and Use the BZ-2 Fuse Holder

System De-energization: Ensure the target circuit is completely powered off and discharged before beginning installation.
Holder Mounting: Securely mount the fuse holder base to the panel or rail using provided hardware, ensuring it is aligned and has proper clearance.
Wiring: Connect the load and line wires to the designated terminals. Tighten to the recommended torque specification to ensure a gas-tight connection and prevent overheating.
Fuse Installation: Insert the correctly rated BZ-2 fuse into the holder until it clicks or seats firmly. Do not force.
Final Inspection & Testing: Visually inspect for proper fuse seating and secure wiring. Re-energize the circuit and verify normal operation. Monitor for abnormal heating during initial operation.

Application Scenarios

The BZ-2 Fuse Holder is essential in any application requiring reliable, high-current fuse protection:

Aircraft & Helicopter Power Distribution: Mounts main and auxiliary circuit fuses in power distribution units (PDUs) and engine control compartments.
Unmanned Aerial Systems (UAS/Drones): Provides a secure mounting point for propulsion battery and motor controller fuses in compact, vibration-heavy environments.
Railway and Mass Transit Vehicles: Used in onboard electrical cabinets to hold fuses protecting traction auxiliary circuits, HVAC, and lighting systems.
Industrial Control Panels: Ideal for protecting high-power motor drives, UPS systems, and power supplies, often installed alongside Solid State Relays and Industrial Power Relays.
Ground Power and Test Equipment: Ensures safe and accessible fuse mounting in mobile generators, aircraft ground power units, and test benches.

Value for Buyers: Enhances overall system safety and reliability, reduces maintenance time with easy fuse access, prevents costly downtime caused by poor fuse contact, and extends the operational life of both the fuse and the protected equipment.

Certifications & Compliance

Manufactured in our SGS-audited facility, the BZ-2 Fuse Holder is produced under a strict quality management system. While the holder itself may not carry a standalone mark, its design and production adhere to the material and performance guidelines of relevant UL, IEC, and MIL specifications for electrical accessories. This commitment to foundational standards is consistent across all YM products, from Automotive Relays to PCB Signal Relays.

Customization Options

YM offers flexible customization to meet specific project integration needs for the BZ-2 Fuse Holder:

Terminal Variations: Custom terminal types (e.g., quick-connect, ring tongue, or busbar connections).
Mounting Configuration: Custom bracket design for unique panel layouts or space constraints.
Material and Plating: Special plating (gold, silver) for extreme environments or specific alloy requests.
Integrated Features: Addition of blown fuse indicator circuits (LED or mechanical), cover interlocks, or sealing gaskets for specific IP ratings.
Branding and Labeling: Custom laser marking, color coding, or part number labeling.

Our proven ODM/OEM expertise, demonstrated in developing custom Latching Relays and Flash Relays, allows us to adapt this holder to your exact system architecture.

Production & Quality Control Process

Every BZ-2 Fuse Holder undergoes a rigorous production journey to guarantee performance:

Material Selection & Testing: Copper alloy stock is certified for conductivity and mechanical properties.
Precision Machining/Stamping: Contacts and structural parts are produced using CNC machining or high-precision stamping to ensure dimensional accuracy critical for fit.
Surface Treatment: Parts undergo precise plating or coating processes to enhance conductivity and corrosion resistance.
Sub-Assembly: Components like springs and insulators are assembled with automated or semi-automated equipment.
Functional Testing: Samples undergo insertion/extraction force tests, continuity tests, and thermal cycling tests.
Final Assembly & Audit: Final assembly, 100% visual inspection, and packaging. Lot traceability is maintained throughout.

This end-to-end control, mirroring the processes for our Polarized Relays and Military Metal Relays, ensures you receive a component built for endurance.