The Fox ESS EQ2900-M supplier code EQ2900-M-3A2C is a 2.88kWh high-voltage LFP master battery module with 57.6V nominal voltage, 52.2-65.7V battery voltage range and CAN communication. It suits EQ2900 storage stacks where one master is required with at least one EQ2900-S slave module.

• 2.88kWh nominal energy with 57.6V nominal voltage
• 52.2-65.7V battery voltage range with 50A maximum charge and discharge current
• Master module required for each EQ2900 stack
• CAN communication for EQ2900 system connection
• EQ2900 system scales from 5.76kWh to 20.16kWh per stack
• 570mm long x 380mm wide x 170mm high, 34.6kg master module
• IP65 and Class I protection listed for the EQ2900 system stack

What does the EQ2900 master control?

The EQ2900-M is the master module for the stack. Fox ESS states that EQ-M contains the system controller and that each EQ system must have one EQ-M.

The master module should therefore be ordered when a new EQ2900 stack is being built. Expansion-only orders normally need the EQ2900-S slave module, not another master.

Why use EQ2900 instead of EQ4800?

EQ2900 uses 2.88kWh modules, while EQ4800 uses 4.66kWh modules. EQ2900 is useful where the system needs smaller storage increments or a lower minimum stack capacity.

Fox ESS UK lists H1-G2 and K Series EQ2900 stacks from 5.76kWh to 20.16kWh. That gives a lower starting capacity than EQ4800, which starts at 9.32kWh for those inverter families.

How many modules are required?

The EQ2900 system table starts at EQ2900-L2, which uses one EQ2900-M and one EQ2900-S for 5.76kWh nominal energy. It scales to EQ2900-L7, which uses one master and six slave modules for 20.16kWh.

Link this page from the retained solar batteries category and keep it separate from the EQ2900-S slave page, because the master and slave have different catalogue roles.

Loading delivery information...