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Rack BMS Controller

Assembly

String-level controller summing module data, controlling the rack breaker, and reporting to the system BMS. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Rack BMS Controller parts and their functions

6 top-level parts · 129 parts in total · full bill of materials below
Rack BMS Controller parts diagram: 1 bare PCB, 2 microcontroller, 3 string current sensor, 4 isolated CAN transceiver, 5 SMD passive (R/C/L), 6 connector. 129 parts in 6 top-level items.
Rack BMS Controller parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bare PCB 1× Controller board
2 Microcontroller 1× Rack management microcontroller
3 String Current Sensor 1× Hall or shunt current sensor for the string
4 Isolated CAN Transceiver 2× Isolated CAN transceivers to modules and system BMS
5 SMD Passive (R/C/L) 120× Passive components
6 Connector 4× Power, sense, and comms connectors

3D model

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Build & assembly graph

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Bill of materials for Rack BMS Controller

6 top-level lines · 6 rows shown · 129 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bare PCB pcb-bare 1× 1 · part
2 Microcontroller mcu 1× 1 · part
3 String Current Sensor battery-energy-storage-container-current-shunt 1× 1 · part
4 Isolated CAN Transceiver battery-energy-storage-container-can-iso 2× 2 · part
5 SMD Passive (R/C/L) smd-passives 120× 120 · part
6 Connector connector 4× 4 · part

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Where the rack BMS controller is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$500. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳CATL
catl.com ↗
Ningde, CN Li-ion cell & pack maker 5,000 cells 8–12 wks
🇨🇳EVE Energy
evebattery.com ↗
Huizhou, CN Li-ion cell maker 5,000 cells 8–12 wks
🇮🇳Amara Raja
amararaja.com ↗
Tirupati, IN Batteries & energy 5,000 cells 8–12 wks
🇸🇬Durapower
durapowergroup.com ↗
Singapore Li-ion battery systems 5,000 cells 8–12 wks
🇨🇳BYD
byd.com ↗
Shenzhen, CN EV & battery manufacturer 5,000 cells 8–12 wks