Victron Energy MPPT WireBox-M Terminal Cover for 100V 30/50A & 150V 35A BlueSolar & SmartSolar MPPT Charge Controllers
4.1 (10)
$33.15$16.58
The Victron Energy MPPT WireBox-M covers all DC terminals on 100V 30/50A and 150V 35A BlueSolar and SmartSolar MPPT controllers for safe general-access installation, and at $16.58 (50% off $33.15) it is the affordable safety add-on — buy online now and save more with coupon OUTPOST12.
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The Victron Energy MPPT WireBox-M is the safety terminal cover for Victron BlueSolar and SmartSolar MPPT solar charge controllers in the 100V 30A, 100V 50A, and 150V 35A sizes, best-fit for installations in general access areas. Current price: $16.58 — 50% off $33.15. Buy online at PowerHaven Outpost.
Fitment: Which MPPT Models Fit WireBox-M
The WireBox-M fits SmartSolar MPPT 100/30, 100/50, and 150/35 controllers. If you own the SmartSolar 100 50 or 150 35, this is the correct cover — the smaller WireBox-S fits only the 100V 20A models.
Install: Mount the controller, complete DC wiring, then attach the WireBox-M to enclose all terminal screws
How to Install the WireBox-M
Disconnect PV and battery power, confirm wiring torque, then clip the WireBox-M over the controller's DC terminals. It covers all terminals to prevent accidental contact with terminal screws.
Comparison & Deal Value
Compared to DIY covers or leaving terminals exposed, the WireBox-M is a precise, genuine Victron fit at an affordable price. Order online: $16.58 sale, $33.15 compare-at, extra 12% off with coupon OUTPOST12. Free shipping on orders over $45.00.
Features
Fits SmartSolar MPPT 100/30, 100/50, and 150/35 controllers — correct WireBox-M fitment for larger MPPTs at $16.58
Covers all DC terminals to prevent accidental contact in general-access installs — 50% off the $33.15 compare-at price
Genuine Victron accessory, quick clip-on install — extra 12% off with coupon OUTPOST12
Model: MPPT WireBox-M
Category: Solar Charge Controllers
Function: Covers all DC terminals
Product Type: Solar Charge Controller Terminal Safety Cover
WireBox-M — Safety Cover for Larger MPPTs, Only $16.58
The Victron Energy WireBox-M encloses DC terminals on SmartSolar MPPT 100/30, 100/50, and 150/35 controllers. Deal: $16.58 vs. $33.15 compare-at plus coupon OUTPOST12.
Free shipping over $45.00; standard shipping $8.00. Order online now.
Frequently Asked Questions
Which Victron MPPT models fit the WireBox-M?
The WireBox-M fits BlueSolar and SmartSolar MPPT charge controllers in 100V 30A, 100V 50A, and 150V 35A ratings, including the SmartSolar 100/50 and 150/35.
How do I install the Victron MPPT WireBox-M?
Disconnect PV and battery power, verify terminal torque, then clip the WireBox-M over the controller's DC terminals so all screws are enclosed.
What is the current price of the WireBox-M?
The current sale price is $16.58 — 50% off the $33.15 compare-at value — with an extra 12% off using coupon OUTPOST12.
Where can I buy the WireBox-M online?
Buy it directly at PowerHaven Outpost with fast online ordering; free shipping on orders over $45.00.
What is the difference between WireBox-M and WireBox-S?
WireBox-S fits the 100V 20A MPPTs; WireBox-M fits the larger 100V 30/50A and 150V 35A models. Choose based on your controller's rating.
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Customer Reviews
10
★★★★★★★★★★5.0
w****b
Verified
Fits my 100/50 perfectly
Snapped right onto my SmartSolar MPPT 100/50 with zero fiddling. All the DC terminals are covered and the bigger gauge cables I'm running still fit fine. Exactly what a safety cover should be.
★★★★★★★★★★4.0
e**a
Verified
Does the job
Solid fit on my 150/35 controller. Would love slightly better latch feel, but functionally it's perfect and keeps fingers away from live terminals.
★★★★★★★★★★5.0
u**b
Verified
Great
Perfect fit, easy install.
★★★★★★★★★★3.0
f*****r
Verified
Good but check your model
Ordered for my 100/30 and it fits great. Just double check the compatibility list first because Victron makes several sizes. Cover itself is sturdy and well molded.
★★★★★★★★★★5.0
g*p
Verified
Required for inspection, glad I bought
My local electrical inspector actually flagged the exposed terminals on my solar controller and told me to get a cover before sign-off. This WireBox-M solved the problem the same week and passed inspection without a comment. Installation is genuinely tool-free, it just clips over the existing wiring. Fits like it came from the factory. Can't ask for more than that.
★★★★★★★★★★2.0
x**w
Verified
Slightly warped
Mine arrived slightly warped and one corner doesn't sit flush. Still covers the terminals but it bugs me.
★★★★★★★★★★4.0
x***a
Verified
Grandpa-approved safety
I'm 68 and my grandkids are always poking around the workshop, so covering the controller terminals was important to me. This cover went on in under ten minutes even with my old eyes and fat fingers. Feels sturdy and I sleep better knowing those terminals are tucked away.
★★★★★★★★★★5.0
m*****j
Clean install, tidy look
Beyond safety, this actually makes my install look more professional. Cables exit cleanly and the whole controller looks finished now. Cheap upgrade that adds real polish.
★★★★★★★★★★5.0
z****r
Verified
Second one purchased
Bought one for my 100/30 last year, just added another for the new 150/35 in my second array. Consistent quality both times. If you have exposed MPPT terminals, just get one.
★★★★★★★★★★3.0
b***t
Verified
Okay
Fits fine and covers the terminals. Plastic feels thinner than I expected for the price, but no functional issues after six months.
