New for 2026!
This is next generation Master for your large scale DC Battery pack for either 12-48V systems or up to 600V high voltage packs used in ESS and Drive systems. It supports most battery chemistries and is used with multiple slave BMSs to create large scale parallel or series systems that interface with most CANbus enabled Inverters
REC BMS Master – Slave configuration is designed for high-voltage applications and scalable 48 V parallel setups, this configuration supports up to 12 BMS Slave units, each managing up to 16 cells. Fully compatible with all REC BMS products, it integrates seamlessly with a wide range of high-voltage chargers and inverters, making it ideal for HV applications and advanced Energy Storage Systems.
- supports Li-PO, LiFePO4, LiFeYPO4, LiCoO2, LiMnNiCo, LiMnO4 , LTO Lithium-Ion and Sodium-ion chemistries
- HV Master + max 12 Slave combination (max 192 cells in series)
- compatible with all REC BMS units: with additional firmware update any REC BMS stand-alone unit may work as REC BMS slave unit
- galvanically isolated user defined multi-purpose relay and digital inputs/outputs
- 3 additional internal relays outputs (normally open)
- wide range power supply voltage (10.5 – 90 V)
- galvanically isolated RS-485 and CAN communication protocol
- error acknowledged and force connect function + LED and buzzer indicator of error states
- internal battery powered real time-clock (RTC)
- PC user interface/Wi-Fi module for monitoring, changing settings and data-logging (optional accessory)
- hibernate switch
- ISO16315, ISO10133, EN61558-1, EN61558-2 and EN50498 compliant
Included in box:
- Master 10M connectors with crimps
- connection cable Master to 1st Slave BMS
- extension for CAN cable connection
- termination resistor for last BMS unit in chain