Victron Energy MPPT WireBox-Tr DC Terminal Cover
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Overview
The Victron Energy MPPT WireBox - Tr is a terminal cover range for Victron MPPT solar charge controllers with Tr-style terminal areas. It covers the DC terminal screws on supported MPPT chargers, adding a physical barrier where solar array and battery cabling enter the controller.
This is a practical add-on for boat installations where the charge controller sits in a locker, technical compartment, cabin panel area, lazarette, or other space that may be reached during service or storage. The range covers Victron MPPT controller sizes from smaller 75/10 and 75/15 units through larger 150/85, 150/100, 250/85, and 250/100 models, with the WireBox size matched to the controller body and terminal layout.
Key features
- Covers all DC terminals to reduce the chance of accidental contact with terminal screws.
- Useful when an MPPT solar charger is mounted in a general access area on board.
- Matched sizing across S, M, L, and XL versions for different Victron MPPT controller families.
- Supports installations using compatible SmartSolar and BlueSolar MPPT charge controllers with Tr-type terminal layouts.
- Helps keep the wiring area more contained after the solar and battery cables are terminated.
Variants
This product range is supplied in different WireBox sizes, with each size matched to specific Victron MPPT solar charger models. The options vary by physical WireBox size and compatible controller rating, including S, M, L, and XL versions for controllers ranging from 75/10 and 75/15 up to 150/100 and 250/100.
The key buying detail is the compatible MPPT model, not the boat size or solar panel wattage by itself. Match the WireBox to the exact Victron charge controller model already installed or being added to the system, especially when replacing an existing controller cover or planning a new solar installation.
Installation and fit
The WireBox fits at the wiring end of the compatible MPPT charger so the DC terminals are covered after the conductors have been connected and tightened. In a marine installation, this is most useful when the controller is mounted where gear, hands, tools, or stored items may come close to the terminal area.
Before ordering, confirm the full controller model number, such as 100/30, 150/70, or 250/100, and match it to the listed compatible models for the selected variant. Similar-looking Victron MPPT chargers can use different WireBox sizes, so the controller rating is the safest way to confirm fit.
Use on board
This WireBox range is a good match for cruising boats, fishing boats, and workboats using Victron MPPT solar charging where the controller is not hidden behind a fully enclosed electrical panel. It is especially relevant for retrofit solar work, battery system upgrades, and locker-mounted charge controllers where a cleaner covered terminal area is preferred.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.
Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.