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Victron Cyrix-Li-load 12/24V-120A intelligent load relay - CYR010120450

Victron Cyrix-Li-load 12/24V-120A intelligent load relay - CYR010120450

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  • Lithium-safe load disconnect relay – designed for LiFePO₄ battery systems
  • BMS-controlled operation – responds directly to lithium battery protection signals
  • Automatic re-engagement logic – intelligently reconnects loads when safe
  • Multiple voltage compatibility – supports 12V, 24V, and 48V systems
  • Battery protection focused – prevents damage from over-discharge conditions
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  • Description
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Description

Overview

The Victron Cyrix-Li-load is a lithium-compatible load disconnect relay designed to safely manage non-essential loads in LiFePO₄ battery systems. It works in conjunction with a Victron BMS to protect lithium batteries from over-discharge and unsafe operating conditions.

By intelligently disconnecting and reconnecting loads based on battery and BMS signals, the Cyrix-Li-load ensures reliable system operation while maximising battery protection.

Key Features

Intelligent Load Disconnect

  • Disengages immediately when BMS control input becomes free floating
  • Protects lithium batteries from unsafe discharge conditions

Automatic Reconnect Logic

  • Reengages 30 seconds after battery voltage recovers
  • Up to three automatic re-engagement attempts
  • Prevents rapid cycling of loads during low battery events

Recharge Detection

  • Remains disengaged after three attempts until recharge is detected
  • Reconnects only after battery voltage exceeds 13V (12V), 26V (24V), or 52V (48V) for at least 30 seconds
  • Ensures loads reconnect only when active charging is present

Downloads

Datasheet