SKU: 30545111259

Victron Cyrix 12/24-400a Combiner

Sale price$134.46 Regular price$149.40
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Victron Cyrix 12/24-400a CombinerIntelligent battery monitoring to prevent unwanted switching. Some battery combiners will disconnect a battery in case of a short but high amperage load. A battery combiner also may fail to connect a large but discharged battery bank because the DC voltage immediately drops below the disengage value once the batteries are connected. The software of the Cyrix i does more than simply connect and disconnect based on battery voltage and with a fixed time

Intelligent battery monitoring to prevent unwanted switching.

Some battery combiners will disconnect a battery in case of a short but high amperage load. A battery combiner also may fail to connect a large but discharged battery bank because the DC voltage immediately drops below the disengage value once the batteries are connected. The software of the Cyrix-i does more than simply connect and disconnect based on battery voltage and with a fixed time delay. The Cyrix-i looks at the general trend (voltage increasing or decreasing) and reverses a previous action only if the trend has reversed during a certain period of time. The time delay depends on the voltage deviation from the trend. In addition four switch timing profiles can be chosen.

12/24 V and 24/48 V auto ranging - The Cyrix-i automatically detects system voltage.

No voltage loss - Cyrix battery combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.

Prioritizing the starter battery - In a typical setup the alternator is directly connected to the starter battery. The accessory battery and possibly also a bow thruster and other batteries are each connected to the starter battery with Cyrix battery combiners. When a Cyrix senses that the starter battery has reached the connect voltage it will engage to allow for parallel charging of the other batteries.

Bidirectional voltage sensing and power supply from both batteries - The Cyrix senses the voltage of both connected batteries. It will therefore also engage if for example the accessory battery is being charged by a battery charger. The Cyrix-i has a dual power supply. It will therefore also close if the voltage on one battery is too low to operate the Cyrix. In order to prevent unexpected operation during installation or when one battery has been disconnected the Cyrix-i will not close if the voltage on one of the two battery connections is lower than 2 V (12 V battery) or 4 V (24 V battery) or 8 V (48 V battery).

Parallel connection in case of emergency - The Cyrix can also be engaged with a push button (Cyrix remains engaged during 30 s) or a switch to connect batteries in parallel manually. This is especially useful in case of emergency when the starter battery is discharged or damaged.

Intelligent battery monitoring to prevent unwanted switching.

Some battery combiners will disconnect a battery in case of a short but high amperage load. A battery combiner also may fail to connect a large but discharged battery bank because the DC voltage immediately drops below the disengage value once the batteries are connected. The software of the Cyrix-i does more than simply connect and disconnect based on battery voltage and with a fixed time delay. The Cyrix-i looks at the general trend (voltage increasing or decreasing) and reverses a previous action only if the trend has reversed during a certain period of time. The time delay depends on the voltage deviation from the trend. In addition four switch timing profiles can be chosen.

12/24 V and 24/48 V auto ranging - The Cyrix-i automatically detects system voltage.

No voltage loss - Cyrix battery combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.

Prioritizing the starter battery - In a typical setup the alternator is directly connected to the starter battery. The accessory battery and possibly also a bow thruster and other batteries are each connected to the starter battery with Cyrix battery combiners. When a Cyrix senses that the starter battery has reached the connect voltage it will engage to allow for parallel charging of the other batteries.

Bidirectional voltage sensing and power supply from both batteries - The Cyrix senses the voltage of both connected batteries. It will therefore also engage if for example the accessory battery is being charged by a battery charger. The Cyrix-i has a dual power supply. It will therefore also close if the voltage on one battery is too low to operate the Cyrix. In order to prevent unexpected operation during installation or when one battery has been disconnected the Cyrix-i will not close if the voltage on one of the two battery connections is lower than 2 V (12 V battery) or 4 V (24 V battery) or 8 V (48 V battery).

Parallel connection in case of emergency - The Cyrix can also be engaged with a push button (Cyrix remains engaged during 30 s) or a switch to connect batteries in parallel manually. This is especially useful in case of emergency when the starter battery is discharged or damaged.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 30545111259

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4.5 ★★★★★
Based on 24 reviews
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Verified Purchase
James Morales
Battle Creek, US
★★★★★ 5
Everyone should have it
Easy to assemble, very sturdy. I would purchase it again. Can't beat the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
T
Verified Purchase
Techeira Francis
Houston, US
★★★★★ 5
Such a great accent piece!
I’ve bought it 3 times now!! I love it so much! definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
J
Jenny
Houston, US
★★★★★ 5
Nice shelf option
These industrial pipe shelf brackets are a great choice if you’re going for that rustic, farmhouse look. The black iron finish looks clean and modern while still giving off that classic industrial vibe. Once installed, they feel sturdy and well-built. Perfect for holding books, décor, or heavier items when paired with solid wood planks. I like the open design because it really lets whatever you’re displaying stand out. They’re also pretty versatile and work well in different spaces like living rooms, kitchens, or home offices. Just keep in mind that this is the bracket system only, so you’ll need to supply your own wood and possibly some mounting hardware depending on your setup. Overall, they’re a stylish and functional DIY option that adds a lot of character to a space.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
M
Mark Roberts
Battle Creek, US
★★★★★ 5
Excellent industrial shelving hardware for the price
I bought these as a housewarming-style gift for my brother-in-law, who recently finished building an extension onto his home and finally has the space for a proper office. His family’s aesthetic leans heavily toward that cottage-meets-industrial look, and these brackets fit the brief perfectly. First impressions were excellent. The iron construction feels genuinely heavy-duty, and the machining and threading are better than I expected at this price point. The finish is a clean matte black that looks sharp without feeling overly glossy or cheap. Installation is straightforward if you’re comfortable with basic wall mounting. Because these are iron pipe components, you may find yourself making tiny adjustments with micro shims to get everything perfectly level depending on your wall and stud placement. That’s not a flaw so much as the nature of pipe-style systems. Once dialed in, though, they feel very solid. The scale is also worth mentioning. These are not subtle brackets—they’re a bit of a statement piece. That’s great if you want the shelving to become part of the room’s visual identity, but it’s something to be aware of when planning the space. One thing I actually appreciate is that they don’t include the wood shelves. Bundled wood usually drives up the cost and often isn’t the species or finish you’d want anyway. This way you can choose your own boards and tailor the look to the room—which is exactly what my brother-in-law ended up doing. Overall, a very well-executed industrial shelving system: sturdy, attractive, and surprisingly refined for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
M
Verified Purchase
Michelle bullard
Boise, US
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2023

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