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fronius|SKU:Z0122738

Fronius DC Connector Kit — 100 A Rated, Ferrule-Free

Reliable DC Connections for Your Off-Grid Build

100 A rated capacity — Handles high-MPP solar inputs
No ferrules required — Faster, cleaner installations
Copper or aluminum — Works with both cable types
Multi-standard certified — IEC, UL, and CSA listed
Safe to touch — Protected contact design
  • FREE Shipping -- On all orders, no minimum
  • FREE System Design Consultation -- Engineers size your exact build

$23.95

Out of stock

In the box

  • Fronius DC connector kit
Fronius | Busbar, DC- z0122738
Fronius DC Connector Kit — 100 A Rated, Ferrule-Free
$23.95

Reliable DC Connections for Your Off-Grid Build

When you're building an off-grid system, every connection matters. The Fronius DC connector kit handles MPP currents above 35 A and cable cross sections up to 25 mm² — no ferrules needed. It's touch-safe and works with both copper and aluminum cable, making it a field-tested choice for Fronius Symo and Eco inverters. Rated to 100 A and built to IEC, UL, and CSA standards, this solar-rated kit gives you a secure, code-compliant DC connection you can trust on any grid-independent setup.

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100A Max Current
Touch-Safe Design
No Ferrules Required
UL & CSA Listed
100 A
Max Current
25 mm²
Max Cable Cross Section
50 lb-in
Torque Rating
Connections that don't fail under load

Connections that don't fail under load

A failed DC connection doesn't just stop your system — it can damage your inverter and compromise your entire solar investment. That's the risk when you piece together random connectors from different vendors and hope the specs align. At Off Grid Vault, every component we carry is vetted for compatibility with the systems we build around. This Fronius DC connector kit is rated for 100 A continuous current and handles cable cross sections from 6 mm² to 25 mm², giving you a proven, manufacturer-matched connection point for Fronius Symo and Eco inverters. No guessing. No mismatched tolerances.

Install faster without ferrule prep

Install faster without ferrule prep

Stripping, crimping, and inserting ferrules adds steps to every connection — and if your ferrule isn't seated right, you're starting over. This Fronius connector kit eliminates that process entirely. The touch-safe design accepts bare copper or aluminum cables directly, with a clamping area of 8 mm to 13 mm and a specified torque of 5.5 Nm. For solar installers and homesteaders building their own systems, fewer tools and fewer failure points means a cleaner, more reliable build. Set your torque driver, seat the cable, and move on.

Listed to the standards that matter

Listed to the standards that matter

Off-grid solar systems operate in demanding conditions — high currents, temperature swings, and continuous loads that punish weak connections. This connector kit carries IEC 60999:2000, UL508, UL486A, and CSA C22.2 certifications. That's not decorative; those listings represent tested compliance with specific electrical safety and performance thresholds. When your DC bus carries 100 A to your inverter, you want a connector that's been verified to handle it, not one that was marketed as sufficient. Off-grid proven starts at the connection level.

Compatibility Check

Make sure this busbar kit matches your setup before ordering.

  • Fronius Symo or Eco inverter DC input connections
  • Cable cross sections between 6 mm² and 25 mm²
  • MPP currents above 35 A

Where It Works

Built for high-current DC connections in serious solar installations.

Homestead Solar Arrays
High-Current DC Runs
Inverter DC Connections

Full specifications

At a glance

Dimensions
See product page
Full specifications7 data points across 4 categories

Dimensions

DimensionsSee product page

Power & Performance

Max. current100 A
Connection cross section6 mm² - 25 mm²
Torque5.5 Nm / 50 lb-in
Clamping area of the screw joint8 mm - 13 mm

Materials

Cable typeCopper and aluminum cables

Compliance & Warranty

StandardsIEC 60999:2000, UL508, UL486A, CSA C22.2

The Off Grid Vault Promise

We stand behind every product we sell — because your system depends on it.

Free ShippingShips free to your door — no minimums, no thresholds, no fine print.
30-Day Performance GuaranteeIf it doesn't perform as specified, return it uninstalled in original packaging within 30 days.
Authorized Dealer StandardsEvery product we carry is vetted for build quality, real-world performance, and warranty support.
★★★★★
“Bought this to clean up the DC connections on my Fronius Symo after my original busbar started showing heat marks. The no-ferrule design made the swap straightforward — stripped the cable, set my torque driver to 5.5 Nm, and was done. Solid, properly rated, and exactly what the inverter calls for.”
F
First L.Flagstaff, AZ

The Fronius DC connector kit is perfect for connecting both inputs with MPP currents above 35 A and cable cross sections over 16 mm². It’s safe to touch, doesn’t require ferrules, and is ideal for Fronius Symo and Eco inverters. This kit is suitable for copper and aluminum cables, and it meets IEC 60999:2000, UL508, UL486A, and CSA C22.2 standards. With a max current of 100 A and connection cross section of 6 mm² – 25 mm², this kit is a reliable choice for your solar needs.

Max. current 100 A
Connection cross section 6 mm² – 25 mm²
Cable type Copper and aluminum cables
Torque 5.5 Nm / 50 lb-in
Clamping area of the screw joint 8 mm – 13 mm
Standards IEC 60999:2000, UL508, UL486A, CSA C22.2

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Frequently Asked Questions

A single failed DC connection under load can damage a multi-thousand-dollar inverter or create a fire hazard at your battery bank. This Fronius kit is UL-listed and manufacturer-matched to Symo and Eco inverters — not a generic listing pulled from a marketplace. For a grid-independent system, the weakest link determines your reliability. This connector eliminates a common failure point for the cost of a basic hand tool.
Off Grid Vault is an authorized dealer for the brands we carry, including Fronius. That means your warranty coverage is legitimate and processed through us — not through a third-party ticket queue. If a component doesn't perform as specified within our 30-day performance guarantee, we make it right. After that, manufacturer warranty claims are handled directly through our dealership, giving you a real point of contact who understands off-grid systems.
This DC connector kit is designed specifically for Fronius Symo and Eco inverters with MPP currents above 35 A. If your inverter falls within that lineup and you're running cable cross sections between 6 mm² and 25 mm², this is the correct connector. If you're unsure about compatibility with your specific configuration, contact us for a free system design consultation — we'll confirm the exact fit for your build.
This kit is listed to IEC 60999:2000, UL508, UL486A, and CSA C22.2. These aren't self-awarded labels — they represent independent testing for electrical safety, current-carrying capacity, and material durability under load. For an off-grid proven system where your DC bus may carry continuous high current for years, these certifications confirm the connector is built to handle it without degradation.
No. This Fronius connector kit accepts bare copper or aluminum cables directly. The clamping area accommodates 8 mm to 13 mm, and the specified torque of 5.5 Nm (50 lb-in) secures the connection without ferrule preparation. That's one fewer step on site and one fewer potential point of installation error in your system.
Ships free on all orders. Small components like this connector kit typically ship within standard processing time. If you're ordering this as part of a larger system package, your components will be coordinated to arrive together where possible. For specific lead times on your order, reach out to our team and we'll give you an honest timeline.
SKU: Z0122738 Categories: , Brand:

The Off Grid Vault Promise

We stand behind every product we sell — because your system depends on it.

Free Shipping Ships free to your door — no minimums, no thresholds, no fine print.
30-Day Performance Guarantee If it doesn't perform as specified, return it uninstalled in original packaging within 30 days.
Authorized Dealer Standards Every product we carry is vetted for build quality, real-world performance, and warranty support.

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About fronius Busbar

fronius is a trusted manufacturer of premium busbar. OffGridVault is an authorized dealer offering the full fronius lineup with free delivery, price match guarantee, and expert support.

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