BESS Isolator

The BESS Isolator is a rugged, precision-engineered signal converter developed for modern battery energy storage systems (BESS) and other high-voltage DC applications. Designed to bridge the gap between high-voltage power systems and low-voltage control environments, it provides galvanically isolated measurements across three input channels—delivering safety, flexibility, and high-resolution insight in a single compact module.

Designed for Demanding Energy Environments

At its core, the BESS Isolator features two fully differential voltage inputs rated up to ±1,200 VDC and one current input compatible with standard ±50 mV shunt resistors. Each channel is galvanically isolated—not only from the output and system supply, but also from each other—allowing for complete flexibility in measurement topology. This means the current measurement can be placed on the positive or negative leg, on either the battery or application side, without compromise.

Thanks to its simultaneous sampling architecture, the BESS Isolator ensures all three inputs are measured at the same moment, enabling accurate real-time power calculations. Internal processing delivers computed values—including voltage, current, power, and energy (via coulomb counting)—directly to a connected control system via J1939 CAN bus. There's no need for external calculation or timing correction, making integration both simple and robust.

Key Features

3 isolated inputs: 2× voltage (±1,200 V), 1× shunt (±50 mV)

J1939 CAN bus for easy system integration

Digital filtering for clean, stable signals

10 ms update rate for real-time responsiveness

Full isolation between all inputs and outputs

Onboard power & energy calculations via CAN

Built-in diagnostics for all input channels

Fully potted housing for harsh environments

Designed for Integration

Powered by a standard 12–24 V supply, the BESS Isolator is built for straightforward integration into industrial automation and energy management systems. Its compact form factor and durable construction make it well-suited for installation inside battery enclosures, switchgear panels, or inverter cabinets.