Description
xVictron Energy MEGA-Fuse 300A/80V (Pack of 5)
The Victron Energy MEGA-fuse 300A/80V is a high-current blade-style fuse designed to protect battery cables and DC wiring in 12V, 24V and 48V systems. Sold in a pack of five, it is suited to professional installers working across multiple installations or requiring on-site spares.
Key Features
- 300A continuous current rating for high-load DC protection applications.
- 80V DC voltage rating, compatible with 12V, 24V and 48V battery systems.
- MEGA blade-fuse format, compatible with standard MEGA fuseholders including Victron's own range.
- Pack of 5 fuses, reducing per-unit cost and ensuring spares are available on site.
- Lightweight construction at 45g per pack, making them easy to carry in an installation kit.
- Victron Energy part number CIP138300020, with GTIN 8719076061731 for straightforward procurement and stock management.
Product Overview
MEGA fuses are a widely used format in DC electrical protection, particularly in battery-based energy systems. The 300A rating makes this fuse appropriate for main battery cable protection on larger inverter installations, where cable runs between battery banks and inverters or charge controllers carry sustained high currents. At 80V DC, the fuse covers the full operating range of 48V lithium and lead-acid battery systems without risk of arc flash on rupture.
The MEGA format uses a bolt-down blade design, which provides a low-resistance, vibration-tolerant connection compared to in-line fuse holders. This is particularly relevant in mobile and marine applications where connections are subject to movement. Victron's MEGA fuseholders are designed to accept this fuse directly, though the format is an industry standard and compatible with many third-party holders.
Buying in a pack of five is practical for trade use. A single blown fuse during commissioning or a fault condition is common, and having replacements immediately available avoids delays on site.
Technical Specifications
- Current rating: 300A
- Voltage rating: 80V DC
- Fuse format: MEGA blade
- Pack quantity: 5 fuses
- Pack weight: 0.045 kg
- SKU: CIP138300020
- GTIN: 8719076061731
Applications
- Main battery cable protection on 12V, 24V and 48V inverter systems.
- DC bus protection in off-grid solar installations.
- Battery fusing in marine and motorhome electrical systems.
- Replacement fusing in existing MEGA fuseholder installations.
- Spare fuse stock for trade installers and service engineers.
What Is Included
- 5 x Victron Energy MEGA-fuse 300A/80V
Installation Notes
MEGA fuses must be installed in a compatible MEGA fuseholder rated for the current and voltage of the application. Ensure the fuseholder and cable terminations are correctly torqued to the manufacturer's specification to prevent resistance heating at the connection. DC systems at 300A carry significant fault energy, and all wiring, fuseholders and connections should be specified and installed by a qualified electrician or accredited installer. Always isolate the battery before replacing a fuse.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.