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Midnite Solar MCB-500A Combiner Box Indoor Rated Included 50mV Shunt - 053041

Briggs & Stratton Midnite Inverters Accessories - 500A | Portlandia Electric Supply

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Midnite Solar MCB-500A Combiner Box Indoor Rated Included 50mV Shunt - 053041

Trusted by 1,000s of Contractors & Installers

Available to Order — typically ships in 2–4 weeks

SKU PES-PA-ELC-1984

OEM Authorized Dealer Full OEM Warranty Ships in 2–4 weeks

$1,118.75 USD

$ $1,118.75 USD

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SKU: PES-PA-ELC-1984
MPN: 053041

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Available to Order

Order today — we confirm lead time at checkout

Volume Pricing

Call 888-876-0007 for a pallet-quote

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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Midnite Solar MCB-500A Combiner Box Indoor Rated Included 50mV Shunt - 053041 $1,118.75

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

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All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

MidNite Combiner Box, 500A, Included 50mV Shunt, Indoor Rated-053041 MCB-500A

The MidNite MNBCB 500/50 battery combiner is a Type-1 (indoor) steel enclosure with 500 A positive and negative busbars, supporting up to twenty 3/4″ and four 1.5″ MNEDC breakers for flexible battery bank layouts. This bundle presents the MNBCB 500/50 with a 50 mV shunt for current sensing.

Key Features

High-capacity busbars

MidNite MNBCB 500/50 battery combiner includes 3/8″ busbar studs and accepts up to 4/0 conductors for low-loss connections across large battery strings.

Installer-friendly layout

Up to 24 breaker spaces and knockouts sized for clean conduit runs make the MidNite MNBCB 500/50 battery combiner easy to wire and expand.

Specifications

**MidNite MNBCB 500/50 battery combiner — full technical data**
Max AC voltage	277 VAC
Max DC voltage	150 VDC
Max wire size	4/0 AWG
Number of breaker spaces	24 (twenty 3/4″ + four 1.5″)
Busbar studs	3/8″
Environment rating	Type 1 (indoor)
Enclosure material	Powder-coated steel
Dimensions (L × W × D)	26-11/16″ × 17-5/16″ × 4-11/16″
Weight	30 lb
Shunt	50 mV bundle shown (base MNBCB 500/50 lists shunt as optional)
Warranty	5 years
Made in	USA

Note: The MidNite MNBCB 500/50 battery combiner base model lists the 50 mV shunt as optional; this SKU is a reseller bundle including the shunt.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

MidNite Combiner Box, 500A, Included 50mV Shunt, Indoor Rated-053041 MCB-500A

Key Features

High-capacity busbars

MidNite MNBCB 500/50 battery combiner includes 3/8″ busbar studs and accepts up to 4/0 conductors for low-loss connections across large battery strings.

Installer-friendly layout

Up to 24 breaker spaces and knockouts sized for clean conduit runs make the MidNite MNBCB 500/50 battery combiner easy to wire and expand.

Specifications

**MidNite MNBCB 500/50 battery combiner — full technical data**
Max AC voltage	277 VAC
Max DC voltage	150 VDC
Max wire size	4/0 AWG
Number of breaker spaces	24 (twenty 3/4″ + four 1.5″)
Busbar studs	3/8″
Environment rating	Type 1 (indoor)
Enclosure material	Powder-coated steel
Dimensions (L × W × D)	26-11/16″ × 17-5/16″ × 4-11/16″
Weight	30 lb
Shunt	50 mV bundle shown (base MNBCB 500/50 lists shunt as optional)
Warranty	5 years
Made in	USA

Note: The MidNite MNBCB 500/50 battery combiner base model lists the 50 mV shunt as optional; this SKU is a reseller bundle including the shunt.

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.