10x38mm AGU Glass Tube Fuse | 32V DC Car Audio Overcurrent Protection
10x38mm AGU glass tube fuse with alloy fusible element and glass housing, 10A-80A 32V DC rated, nickel or gold plated, heat and corrosion resistant, designed for car audio installation and high power automotive circuit overcurrent protection.
Need a Fuse for Your Project?
Share your requirements with us for product guidance and a quotation.
Cái 10x38mm AGU glass tube fuse is a specialized overcurrent protection component designed for automotive audio and high-power low-voltage DC circuits. This AGU glass tube fuse features a high-purity alloy fusible element enclosed in an impact-resistant glass housing, with nickel or gold plated end caps for excellent conductivity and corrosion resistance. Rated at 32V DC with a 10A to 80A current range, it provides reliable overload and short-circuit protection, and is widely used in car audio modification, power distribution blocks and high-performance automotive electrical systems.
Core Product Features
- Standard AGU size: 10×38mm, universally compatible with all standard AGU fuse holders and power distribution blocks on the market
- Wide current range: 10A to 80A, covers most car audio and high-power auxiliary circuit protection requirements
- Rated voltage: 32V DC, suitable for 12V and 24V automotive and marine electrical systems
- Fusible element: High quality alloy material, stable fusing characteristics, accurate and reliable protection action
- End cap plating: Nickel plated or gold plated options, high conductivity, corrosion resistant, not easy to fade
- Glass tube housing: Impact resistant, heat and water resistant, allows visual inspection of fuse status
- Fast-acting fusing characteristics, quickly cuts off the circuit in case of overcurrent and short circuit
- RoHS compliant, suitable for global automotive aftermarket and audio modification markets
Compared with blade fuses, AGU glass tube fuses support higher current capacity and have better visual observability. Their threaded end cap structure creates a more stable and reliable connection, making them the preferred protection solution for high-power car audio systems and centralized power distribution units.
Main Technical Specifications
| Item | Parameter |
|---|---|
| Product Type | AGU glass tube fuse |
| Standard Size | 10 × 38mm (AGU standard) |
| Current Range | 10A, 15A, 20A, 25A, 30A, 35A, 40A, 50A, 60A, 70A, 80A |
| Rated Voltage | 32V DC |
| Housing Material | Impact-resistant glass tube |
| Fusible Element | High-purity alloy |
| End Cap Plating | Nickel plated / Gold plated (optional) |
| Protection Type | Fast-acting overcurrent and short circuit protection |
| Primary Application | Car audio installation, automotive power distribution |
| Compliance | RoHS compliant |
Fusing Characteristics
| Test Current | Current Range | Opening Time (Max.) |
|---|---|---|
| 100% Rated Current | 35A – 80A | 4 hours (no opening) |
| 110% Rated Current | 10A – 30A | 4 hours (no opening) |
| 135% Rated Current | 10A – 30A | ≤ 1 hour |
| 200% Rated Current | 10A – 30A | ≤ 5 seconds |
| 300% Rated Current | 35A – 80A | ≤ 4 seconds |
Selection & Application Guide
When selecting an AGU glass tube fuse, first confirm the system rated voltage and actual working current of the circuit. Select a fuse with appropriate current rating according to the actual load, and reserve a 1.25-1.5 times safety margin to avoid nuisance fuse blow under normal load. For high-power car audio systems, gold-plated models are recommended for lower contact resistance and better conductivity. Ensure that the fuse holder size matches the standard 10×38mm AGU specification to guarantee firm installation and stable contact. For high-temperature engine compartment environments, avoid direct installation near heat sources to ensure accurate fusing performance.
Application Scenarios
- Car audio modification and high-power sound system power protection
- Automotive power distribution blocks and wiring harness centralized protection
- RVs, yachts and marine audio electrical systems
- Automotive lighting upgrade and additional electrical equipment protection
- Commercial vehicle and engineering vehicle auxiliary circuits
- Off-road vehicle and modified vehicle high-power electrical systems
- Low-voltage DC power supply and battery system protection
Usage & Installation Notes
1. Select a fuse with correct current and voltage rating according to the actual circuit protection requirements.
2. Disconnect the power supply before installation to avoid electric shock and short circuit hazards.
3. Install the fuse into the matching AGU fuse holder or power distribution block, and ensure the end caps are in firm contact with the terminals.
4. Do not use fuses exceeding the rated voltage and current specification to avoid protection failure and safety risks.
5. The glass housing is fragile. Avoid heavy impact and extrusion during installation and use to prevent rupture.
6. When the fuse blows, first troubleshoot the circuit fault, and then replace it with a fuse of the same specification. Do not replace it with a higher current rating without reason.
7. Regularly check the fuse status and contact parts for oxidation and looseness, and replace them in time if any abnormality is found.
Frequently Asked Questions
Q1: What is the standard size of this AGU fuse?
A1: It adopts the standard AGU size of 10×38mm, which is universally compatible with all standard AGU fuse holders and power distribution blocks on the market.
Q2: What current ratings are available for this fuse?
A2: It covers 11 current specifications from 10A to 80A, including 10A, 15A, 20A, 25A, 30A, 35A, 40A, 50A, 60A, 70A and 80A, to meet different load protection requirements.
Q3: What is the rated voltage of this AGU fuse?
A3: The rated voltage is 32V DC, which is suitable for 12V and 24V automotive, RV and marine low-voltage DC electrical systems.
Q4: What plating options are available for the end caps?
A4: Two options are available: nickel plated and gold plated. Gold plated models have lower contact resistance and better conductivity, which are more suitable for high-performance car audio systems.
Q5: What are the main application scenarios?
A5: It is mainly used for car audio installation and modification, automotive power distribution blocks, RV electrical systems, marine audio and other high-power low-voltage DC circuit overcurrent protection.
Q6: Is this a fast-acting or time-delay fuse?
A6: This is a fast-acting glass tube fuse, which can quickly cut off the circuit in case of short circuit and severe overcurrent, providing timely protection for electrical equipment.
Q7: Can I see the fuse status directly?
A7: Yes, it adopts a transparent glass tube housing, so you can directly observe whether the internal fusible element is broken, which is convenient for fault inspection and daily maintenance.
