Victron Cyrix-ct 12/24V 230A

The Victron Cyrix-ct 12/24-230 is an intelligent battery combiner, a microprocessor controlled heavy duty relay that automatically parallels two batteries for charging and isolates them again when charging stops. It is an ideal, low loss replacement for a traditional diode split charge isolator, so alternator and charger output voltages do not need to be raised.

Rated at 230 A continuous with a substantial 500 A five second cranking rating, it suits larger marine and vehicle installations, high output alternators and bigger domestic banks. Bidirectional voltage sensing means it engages whether the charge source is on the starter side or the accessory side, and its dual power supply lets it close even when one battery is too flat to power the relay. A bicolour status LED reports the engage, disengage and alarm states, and a one metre control cable is supplied.

Intelligent trend detection studies whether the system voltage is rising or falling before it acts, preventing the rapid on/off cycling that troubles simple voltage sensitive relays. The unit auto ranges between 12 V and 24 V, includes a Start Assist input for emergency parallel starting, and disengages on over temperature to protect the contacts.