Fox ESS · 2.88 kWh · 1-phase HV battery master · type B
Fox ECS 2.88kWh HV battery master (type B)
Specifying a new Fox ECS tower starts here: the 2.88kWh HV master in the V2.0 connector B build, the control module new-install buyers design the rest of the stack around. Fresh installations are where it earns its place, heading the tower before any slave goes on.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
On a fresh design the master is the first line on the parts list, and choosing the connector B variant fixes the hardware standard for every module that follows. The 2.88kWh block size gives fine-grained control over total capacity, so a quote can track the customer's consumption figures instead of jumping in coarse increments. A tower takes one master, with slaves supplying the additional capacity above it. Order it with its slaves in a single line so the whole stack arrives together and first fix is not left waiting on a second delivery.
Specification
| Brand | Fox ESS |
|---|---|
| Part number | FE-HV-ECM-2900 |
| Capacity | 2.88 kWh |
| Phase | Single-phase |
| Condition | New |
| Category | Batteries · Li-ion Battery Pack |
| Delivery method | Pallet freight (UN3480 Class 9 dangerous goods) |
What it pairs with
Grow the tower with ECS-series slave modules, matching the connector letter B when you order; this catalogue also lists the same family as an 11.52kWh one-master, three-slave bundle in connector type B if the job lands on that capacity. Fox hybrid inverters are the family-level partner. Exact fits depend on model and firmware revision, so work from Fox ESS's current pairing and stacking list.
This is the master control module for a single-phase HV stack, built as V2.0 with connector B. Slaves and cabling must match that revision and connector. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-07-19