SKU: 496468895

Victron Cyrix-Li-Intelligent Load Relay 12/24V-230A

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Description

Victron Cyrix-Li-Intelligent Load Relay 12/24V-230AVictron Cyrix Li load 12 24V 230A: Intelligent Load Disconnect for LiFePO4 Battery Systems Precision Protection for Your Lithium Battery Investment The Victron Cyrix Li load 12 24V 230A is a specialised intelligent load relay engineered to safeguard LiFePO4 (lithium iron phosphate) batteries from damaging under voltage conditions. Designed to integrate seamlessly with a VE. Bus BMS, this relay acts as a critical second line of defence, automatically

Victron Cyrix-Li-load 12/24V-230A: Intelligent Load Disconnect for LiFePO4 Battery Systems

Precision Protection for Your Lithium Battery Investment

The Victron Cyrix-Li-load 12/24V-230A is a specialised intelligent load relay engineered to safeguard LiFePO4 (lithium iron phosphate) batteries from damaging under-voltage conditions. Designed to integrate seamlessly with a VE.Bus BMS, this relay acts as a critical second line of defence, automatically disconnecting loads when cell voltages approach unsafe levels. By preventing deep discharge, it helps extend battery cycle life and maintain system reliability in mobile, marine, and off-grid applications.

Unlike generic voltage-sensitive relays, the Cyrix-Li-load responds directly to the BMS control signal, ensuring precise, cell-level protection rather than relying solely on overall battery voltage. This targeted approach reduces the risk of premature cell failure and the associated downtime or replacement costs.

How It Works: BMS-Driven Load Management

The Cyrix-Li-load engages when its control input receives a high signal (approximately battery voltage) from the VE.Bus BMS, allowing normal load operation. If the BMS detects an imminent cell under-voltage, it releases the control input, causing the relay to disengage and isolate the loads. This immediate response prevents further discharge and protects the cells.

After disconnection, battery voltage often recovers slightly. The Cyrix-Li-load will attempt to re-engage after a 30-second delay. If the under-voltage condition persists, it will try up to three times before locking out. To reset, the battery voltage must rise above 13 V (26 V for 24 V systems) for at least 30 seconds, indicating that charging has resumed. This intelligent logic avoids nuisance cycling while ensuring loads are only reconnected when safe.

Key Features at a Glance

  • 230 A continuous rating at 12 V or 24 V, suitable for high-demand DC loads
  • Direct BMS integration via included 1-metre control cable for precise cell-level protection
  • Low power consumption (<4 mA when open) to minimise drain on the battery
  • IP54 protection against dust and water spray, ideal for engine rooms and exposed installations
  • LED status indicator for at-a-glance monitoring of relay state and alarm conditions
  • Compact, lightweight design (65 x 100 x 50 mm, 0.27 kg) for flexible mounting
  • M8 stud terminals (approx. 5/16") accept heavy-duty lugs for secure, low-resistance connections

Built for Demanding Environments

With an IP54-rated enclosure, the Cyrix-Li-load resists dust ingress and splashing water, making it suitable for use in marine engine compartments, vehicle under-bonnet installations, and other harsh settings. The robust M8 stud terminals ensure reliable high-current connections, while the integrated transient voltage suppressor protects against spikes that can occur during sudden disconnection.

Applications: Where Precision Load Control Matters

This relay is essential in any LiFePO4 system where loads cannot be directly controlled by the VE.Bus BMS. Typical use cases include:

  • Marine and RV electrical systems – Protect house batteries from being drained by DC distribution panels, inverters, or other loads
  • Off-grid solar installations – Prevent over-discharge of lithium battery banks in remote power systems
  • Industrial and mobile equipment – Safeguard batteries in electric vehicles, forklifts, or portable power packs

For systems requiring ultra-low standby consumption, a Victron BatteryProtect may be considered as an alternative. However, the Cyrix-Li-load offers the advantage of bidirectional current flow and higher continuous current handling.

Installation and Compatibility

The Cyrix-Li-load is designed for straightforward integration with Victron VE.Bus BMS units. The included control cable connects directly to the BMS load disconnect output. Always ensure the relay is installed in a well-ventilated area and that cable sizing is appropriate for the 230 A continuous rating. Note that typical de-rating factors apply for sustained high-current operation; refer to installation guidelines for optimal performance.

Protect Your Lithium System Today

Add the Victron Cyrix-Li-load 12/24V-230A to your energy system and gain peace of mind knowing your LiFePO4 batteries are shielded from damaging under-voltage events. Order now to ensure reliable, automated load disconnection for your next project.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 496468895

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Elizabeth Darcy
Carnegie, US
★★★★★ 4
Good Value, Nice Fabric, But Could Have Better Finishing.
I'm 5'3 and 125# and the size small was a near perfect fit, although I hope I don't gain any weight. These have an elastic waistband in addition to the drawstring and the elastic is pretty strong, so if you are on the border between sizes, I'd recommend sizing up. I was a little annoyed with how these arrived - they come in a box, but inside the box the set I got was balled up in and in a plastic bag then shoved into the box. I suspect I may have gotten a set that was a return, because I can't imagine them being packaged that way out of the factory. Since these are primarily linen, the result of this type of packing is that they were so wrinkled I nearly sent them straight back! I tried them on anyway and since they fit me well, I decided to keep them, but I hope that most of the wrinkles come out in the wash, otherwise I'll have to haul out the iron which I haven't had to do in ages. I don't wear shorts all that often, but since these were a linen blend and every summer seems to be getting hotter, I thought these would be comfortable to wear on those 90+ degree days. Linen is comfortable and breathable and cotton does a good job of wicking away moisture, so it's the perfect blend for the hottest and stickiest days of summer. They aren't too short, which is a plus. I did need to snip a lot of loose strings off of these, so these could have a nicer finish, but for less than $20/pair, I'm not too fussed about it. I think these will wash up well and will look a lot better once ironed, but hopefully, I'll only have to iron them once to get them into the right shape. If they need to be ironed every time they're washed, they'll probably be relegated to the back of my closet where my least favorite clothes go to die, because who has time to iron??!!
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Reviewed in the United States on May 26, 2025
R
Verified Purchase
raevarg
Pawtucket, US
★★★★★ 5
Nice
Color: Black, White, Size: Large
Nice weight , nice fit but...have to be ironed
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Reviewed in the United States on July 1, 2025
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Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 2
Not linen
These aren’t linen, these are microfiber shorts. Fabric feels very cheap.
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Reviewed in the United States on July 12, 2025
L
Lehc00
Carnegie, US
★★★★★ 5
True To Size
These shorts fit true to size and are so comfortable. They have a drawstring waist, so you can adjust them for the best fit and wide legs. They are 55% linen and 45% cotton so they keep you feeling cool. The classic colors go with nearly any other colors or designs, making them stretch your wardrobe potential and saving you money. They were extremely wrinkled upon arrival, so I used my fabric steamer, and within 5 min they looked perfect. I love these shorts and wear them all the time!
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Reviewed in the United States on May 27, 2025
S
Sydney J
Draper, US
★★★★★ 4
Cute 2-pack pair of shorts
Color: Black, White, Size: Medium, Color: Black, White, Size: Medium
Cute shorts that have pockets and fit true to size. I love that they come in a pack of two as well. The black ones are my favorite and I feel like the fabric is a little softer on the black pair. The white ones are a little thinner than I would like. I was wearing an olive green colored underwear underneath them in the pictures in my review and though you can’t see them much, I do feel like they were slightly visible. The white pair also had a lot of loose strings on them which made me think the quality might not be as good as with the black pair. They washed easily and I hung them up to dry them because they smelled kind of funny when they arrived.
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Reviewed in the United States on June 7, 2025

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