Your browser version is not officially supported, and you may experience a degraded service. Please upgrade your browser.
We’ve introduced a new phone system to improve your experience. While it may sound a little different, you’ll still reach the same team. Contact us as usual on 01502 716993. If you have older numbers saved, please use this main number.
x
Due to increased demand, we are currently experiencing a higher volume of orders than usual. As a result, there may be a delay of up to 24 hours in processing and delivering your order. We’re working hard to get everything out as quickly as possible and appreciate your patience and understanding.
x

We’re exhibiting at Seawork 2026 alongside LKQ Aquafax! See us 9th – 11th June on Stand H7

Victron Cyrix-ct 12V / 24V VSR Electrical Relay (120A)

Part No: VC-CYR010120011

Victron Cyrix-ct is an intelligent battery combiner relay (also known as a voltage controlled relay, split charge relay or voltage sensitive relay (VSR)), which automatically detects the voltage of Read more

Description

Victron Cyrix-ct is an intelligent battery combiner relay (also known as a voltage controlled relay, split charge relay or voltage sensitive relay (VSR)), which automatically detects the voltage of the system. The software inside the Cyrix-ct does more than just connect / disconnect based on battery voltage and a fixed time delay. It looks at a general voltage trend and reverses a previous action only if the trend has reversed during a certain period of time. This time delay depends on the voltage deviation from the trend. This compares to other relays that will disconnect the battery any time there is a short and high amperage load.

In the case of more than one battery in the system, the accessory battery (and others if applicable) would be connected to the starter battery with Cyrix-ct battery combiners. In a typical setup with the alternator connected to the starter battery, the relay will only engage and start parallel charging other batteries when the starter has reached the correct level. It also provides a start assist, where the other batteries can be used to make a parallel connection with the starter if it is discharged or damaged.

The Cyrix-ct battery combiner results in virtually no voltage loss so the output voltage of alternators or battery chargers do not need to be increased. It will also disengage if temperatures get too high (such as a long lasting overload) to prevent damage, and will reengage once it has cooled down.

Specifications
Voltage Description Connect Voltage: 13V to 13.8V and 26 to 27.6V, Disconnect Voltage: 11V to 12.8V and 22V to 25.7V
Brand Victron
IP Rating IP54
Dimensions 46mm x 46mm x 80mm
Amps Description 120A
Ask a Question
Victron Cyrix-ct 12V / 24V VSR Electrical Relay (120A)

£54.79

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

£54.79 Incl VAT

 28 in stock

View Trade Prices
Quantity

Get offers in your inbox

Sign up for the latest offers, product news, technical advice and more.

By submitting your details you consent to our Privacy Notice.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.