DC Contactor with Current Sensing and Analog Output (MXSB Series)
The MXSB Series provides integrated Hall-effect current sensing and high-voltage power switching within a single hermetically sealed unit. This design streamlines system monitoring for electric vehicles and energy storage by providing real-time analog data without external shunts.
Current-Sensing DC Contactor with Analog Output (MXSB Series)
<!-- wp:paragraph -->
The GIGAVAC MXSB Series is a specialized solution designed for demanding applications that require integrated current sensing and high-performance power switching in a single, compact package. As part of the prestigious Epic® sealed contactor family, the MXSB series combines robust power handling with advanced Hall-effect current sensing technology.
Key Technical Features
- Integrated Current Sensing: Features an internal Hall-effect sensor that provides a 0-5V analog output proportional to the current flowing through the main contacts. This eliminates the need for external shunts or transducers, saving space and reducing system complexity.
- Hermetic Sealing: Utilizing GIGAVAC's proprietary Epic® (Extended Performance Impervious Ceramic) technology, these contactors are hermetically sealed. This ensures reliable operation in harsh environments, shielding components from oxidation, moisture, and dust.
- High Power Performance: Capable of handling continuous currents up to 400A-600A (depending on the specific model) and voltages up to 800Vdc.
- Bidirectional Switching: Designed to handle current flow in both directions, making them ideal for battery charging and discharging cycles in EV and ESS applications.
- Low Power Consumption: Available with high-efficiency dual-coil designs that minimize holding power once the contactor is engaged.
Application Areas
The MXSB series is widely utilized in sectors where power monitoring and safety are critical:
- Electric Vehicles (EV): Used in Battery Management Systems (BMS) to monitor charging/discharging rates and protect the battery pack.
- Energy Storage Systems (ESS): Integrated into power conversion systems to monitor DC bus currents.
- Solar Power (Photovoltaics): Managing high-voltage DC strings with integrated current feedback.
- Industrial Battery Packs: Providing both a safety disconnect and a diagnostic output for current flow.
Why Choose the MXSB Series?
By integrating the sensor directly into the contactor, the MXSB series simplifies the bill of materials (BOM) and reduces installation time. The analog output can be directly interfaced with a PLC, BMS, or microcontroller, providing real-time data for overcurrent protection, State of Charge (SoC) calculations, and system diagnostics.
Supported by GIGAVAC's reputation for reliability, the MXSB series represents the intersection of power electronics and precision instrumentation, offering a streamlined solution for modern DC power management.