The MG Master LV 24-48V is the management and safety controller for MG lithium banks running at 24V or 48V. It collects and monitors every essential battery parameter and intervenes the moment any value exceeds safe limits, and its internal main safety contactor will disconnect all chargers and loads if the system ever needs to be protected. It manages up to 96 MG battery modules, communicates over CAN-Bus, and includes Bluetooth Smart for setup and monitoring — the layer that keeps a low-voltage MG system safe and coordinated.

Key Features

Continuous monitoring with automatic intervention on out-of-limit conditions
Internal main safety contactor disconnects chargers and loads
Manages up to 96 MG battery modules across 24V and 48V systems
CAN-Bus communication compatible with Victron VE.Can, NMEA2000, and SMA
Bluetooth Smart for configuration and monitoring
M12 CAN-Bus connectors with hardwired emergency-shutdown input
Reinforced ABS enclosure, IP22, 426 x 225 x 117 mm, -20 to 50 °C operation

Specifications by Model

MG Master 24-48V / 400A (M12) — MGMLV482400

Main safety contactor: 400A continuous; weight 4.9 kg

MG Master 24-48V / 600A (M12) — MGMLV482600

Main safety contactor: 600A continuous; weight 6.0 kg

MG Master 24-48V / 1000A (M12) — MGMLV481002

Main safety contactor: 1000A continuous; weight 8.6 kg

MG Master 24-48V / 1000A (M12) Pc+ — MGMLV481003

1000A continuous safety contactor in the Pc+ configuration; weight 8.6 kg

Warranty

MG Energy Systems backs this controller with a 4-year limited warranty covering defects in materials or workmanship. Normal end-of-life wear, which varies with usage and operating conditions, is not covered.

Blue Marine is an authorized MG Energy Systems dealer — ships brand-new with MG's 4-year limited warranty, free shipping, and local pickup available.