The Victron Cyrix-Li-Load 120A is a microprocessor-controlled relay switching heavy DC circuits from a low-current control signal.
Switching a large load with a small signal is the whole function, and it avoids running the main circuit through a control switch. A 120 amp circuit routed to a helm switch and back needs heavy cable in both directions. A relay puts the switching where the load is and runs a signal wire to the control.
It gives high-current electronic control without the voltage loss a diode-based arrangement would introduce. That matters on a lithium system where the charging voltages are precise and any drop in the path affects what the bank actually receives.
A hundred and twenty amps suits a substantial DC circuit on 12V or 24V. It is designed for lithium-related systems, working alongside a BMS that supplies the control signal. Explore more Relays, Combiners & Disconnects.
- A small signal switches a heavy circuit
- No running 120A cable to a helm switch and back
- No diode voltage loss in the path
- Works with a BMS supplying the control signal








