SKU: 73722863873

Victron Cyrix 12/24-230a Combiner

Sale price$141.30 Regular price$157.00
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Description

Victron Cyrix 12/24-230a CombinerThe Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre set voltage (indicating that the battery is being charged) and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged). Cyrix Battery Combiners are an excellent replacement for diode isolators. The main feature is that there is

The Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre-set voltage (indicating that the battery is being charged) and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged). 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.

Intelligent battery monitoring to prevent unwanted switching - Some battery combiners (also called voltage controlled relay or split charge relay) 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-ct 12/24 does more than simply connect and disconnect based on battery voltage and with a fixed time delay. The Cyrix-CT 12/24 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. (for Battery Combiners with multiple engage/disengage profiles please see the Cyrix-i 400).

Long bolts to allow connection of more than one power cable - Cyrix 12/24-230: 16 mm (M8).

Protection against overheating (due to a long duration overload e.g.) - The Cyrix will disengage in case of excessive contact temperature and reengage again after it has cooled down.

LED status indication (Cyrix 12/24 230 only).

LED on: engaged.

LED 10 s flash: disengaged.

LED 2 s flash: connecting.

LED 2 s blink: disconnecting.

LED 0 25 s blink: alarm (over temperature; voltage > 16 V; both batteries < 10 V; one battery < 2 V) (multiply by two for 24 V).

12/24 V auto ranging - The Cyrix-ct 12/24 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.

Prioritising 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-CT 12/24 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-ct 12/24 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).

Parallel connection in case of emergency (Start Assist) - The Cyrix can also be engaged with a push button (Cyrix remains engaged during 30 seconds) 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
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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: 73722863873

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Laura Shearn
Cuba, US
★★★★★ 1
Watch insurance
I purchased a citizen watch from Amazon and decided to get warranty they was pushing 🫸 not knowing I was given a 5 yr warranty from citizen company with purchase! Cannot give opinions on it because I have gotten no information about this program and have not had to use it... but I can contact them anyway....
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Reviewed in the United States on December 1, 2023
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Ryan N
Carnegie, US
★★★★★ 5
Solid Timepiece
Color: Grey, Color: Grey
Overall, I’m really happy with this watch. The only small complaint I have is adjusting the bracelet. I picked up a $15 watch repair kit to size it myself, and while it wasn’t difficult, the push-pin links were definitely more of a hassle than I expected—especially compared to my Oyster bracelet with screws. Just a bit time-consuming, nothing major. Once that part was done, though, I’ve loved everything about it. It’s a great everyday watch, surprisingly accurate, and one of those pieces you just don’t get tired of looking at. For what it’s worth, this is coming from someone who also owns a Submariner—not trying to flex, and yes, I fully realize how douchey that sounds. Nothing screams “please validate my life choices” like bragging about an overpriced watch that basically just tells time. But in all seriousness, I only mention it to give some perspective on how much I genuinely enjoy this one.
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Reviewed in the United States on December 10, 2025
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justin himebaugh
Lake Worth, US
★★★★★ 5
Great watch!
Color: Grey
What a great watch for the money, Tissot never disapoints!
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Reviewed in the United States on April 21, 2026
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Chris Antos
Birmingham, US
★★★★★ 5
Works great
Color: Grey
Watch looks great and works great
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Reviewed in the United States on April 26, 2026
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Tony Lorenzo
Carnegie, US
★★★★★ 5
Calidad y estilo
Color: Grey
Está muy bonito y queda muy elegante para todas las ocasiones.
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Reviewed in the United States on May 5, 2026

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