BMU-H5-52 (52S High-Voltage BMS Slave BMU)
High-voltage BMS slave BMU for 52S energy storage battery packs, featuring ±4mV voltage accuracy, 57-channel NTC temperature sensing, passive balancing, CAN communication, and full CE / RoHS / FCC certification.
.png&w=3840&q=75)
The BMU-H5-52 is a 52S high-voltage BMS slave BMU designed for energy storage battery packs. It delivers ±4mV cell voltage accuracy, up to 57 NTC temperature channels with ±1°C precision, and 100mA passive balancing. Communication is via a robust CAN interface with automatic address assignment for multi-slave cascades. The unit features AC 4200V insulation withstand, EMC compliance to multiple ISO standards, and IP54 protection. It supports firmware OTA upgrades over CAN and is certified to CE, RoHS, and FCC. Ideal for industrial & commercial ESS, grid-side storage, battery pack integration, and solar+storage applications.
Performance Metrics
±4mV ultra-high voltage accuracy with automotive-grade AFE for reliable cell monitoring across full temperature range
Verified under maximum operational load and extreme environmental conditions.
57-channel NTC temperature sensing with ±1°C accuracy for comprehensive thermal management
Verified under maximum operational load and extreme environmental conditions.
Passive balancing with 100mA effective current and support for odd/even channel balancing
Verified under maximum operational load and extreme environmental conditions.
1× CAN interface for seamless data exchange with master BMS controllers
Verified under maximum operational load and extreme environmental conditions.
Auto address assignment for multi-slave cascade — plug and play
Verified under maximum operational load and extreme environmental conditions.
High insulation and EMC: AC 4200V withstand voltage, compliant with GB/T-18655, ISO11452, ISO7637, ISO10650, ISO16750
Verified under maximum operational load and extreme environmental conditions.
Firmware OTA upgrade via CAN bus for easy maintenance and feature updates
Verified under maximum operational load and extreme environmental conditions.
CE, RoHS, FCC certified with independent IP and patents
Verified under maximum operational load and extreme environmental conditions.
Designed for 52S battery packs with 0–5000mV per cell detection range
Verified under maximum operational load and extreme environmental conditions.
IP54 protection class and wide operating temperature range –20°C to +65°C
Verified under maximum operational load and extreme environmental conditions.