Description
xMEGA-Fuse 300A/58V for 48V Systems (1 pc) — CIP137300010
The Victron MEGA-Fuse 300A/58V is a high-current blade-style fuse designed for overcurrent protection in 48V battery systems. It is suited to professional solar, off-grid and battery storage installations where reliable, rated protection of DC cabling and equipment is required.
Key Features
- Rated at 300A continuous current with a 58V DC voltage rating, compatible with 48V battery banks.
- MEGA-fuse format provides a compact, high-current solution for DC protection in battery and inverter circuits.
- Single fuse supplied per pack (quantity: 1 piece), suitable for replacement or single-circuit installations.
- Designed for use with MEGA fuseholders, ensuring a secure, low-resistance connection in high-current DC applications.
- Lightweight construction at 9 grams, minimising additional load in compact battery enclosures or distribution boards.
- GTIN: 8719076021919 — genuine Victron Energy component for traceability and warranty compliance.
Product Overview
MEGA-fuses are a widely used format in professional DC electrical installations. The 300A rating makes this fuse appropriate for protecting the main DC feed between a 48V battery bank and a high-current inverter or busbar. At 58V, the voltage rating provides adequate headroom above the maximum charge voltage of a standard 48V lithium or lead-acid battery system, which typically peaks between 54V and 58V depending on chemistry and charger settings.
Correct fuse selection is critical in DC systems. An undersized fuse will blow under normal load; an oversized fuse will fail to protect cabling in a fault condition. The 300A rating should be matched to the cable cross-section and the maximum continuous current draw of the connected equipment. Consult the cable manufacturer's current-carrying capacity tables and the inverter or charger documentation before selecting this fuse for a specific installation.
Note: This SKU (CIP137300010) is listed as a single-piece pack. If stock shows zero, the alternative pack SKU is CIP138300020, which supplies the same fuse in a different pack quantity.
Technical Specifications
| Specification | Value |
| SKU | CIP137300010 |
| Current Rating | 300A |
| Voltage Rating | 58V DC |
| Compatible System Voltage | 48V |
| Fuse Type | MEGA-fuse |
| Pack Quantity | 1 piece |
| Weight | 9 g |
| GTIN | 8719076021919 |
| Alternative SKU (if out of stock) | CIP138300020 |
Applications
- Overcurrent protection on the main DC feed between a 48V battery bank and a Victron MultiPlus, Quattro or other high-current inverter/charger.
- Fuse replacement in existing MEGA fuseholder installations on 48V off-grid and hybrid solar systems.
- DC distribution boards and busbars in battery storage systems requiring 300A-rated protection.
- Marine and vehicle DC systems operating at 48V where MEGA-format fusing is specified.
- Commercial and industrial battery backup systems with 48V architecture.
What Is Included
- 1 x Victron MEGA-Fuse 300A/58V (CIP137300010)
Installation Notes
This fuse must be installed in a compatible MEGA fuseholder rated for the application voltage and current. DC fusing in battery and inverter systems should be carried out by a qualified electrician or MCS-accredited installer familiar with high-current DC installations. Ensure the fuse rating is appropriate for the cable cross-section in use and that the fuseholder is correctly torqued to the manufacturer's specification to avoid resistance heating at the terminals. Do not substitute this fuse with a higher-rated device to resolve nuisance tripping; investigate the root cause of any overcurrent condition before replacing.
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:
- 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.