Heavy-Duty Automotive Battery Current Sensor / Shunt

This is a heavy-duty Battery Current Sensor, typically utilized in automotive Battery Management Systems (BMS) and high-power distribution networks. This component features a solid copper busbar designed for inline high-amperage current measurement, encased in a durable black plastic housing that protects the internal sensing circuitry. It utilizes a 4-pin electrical connector to transmit precise current and temperature data back to the vehicle's ECU or BMS controller. Key Specifications Category: Automotive & Industrial Parts / Electrical Components / Sensors Product Type: Battery Current Sensor / Inline Busbar Shunt Material: Solid copper busbar (terminals), heat-resistant plastic housing (black) Electrical Interface: 4-Pin signal receptacle Mounting Type: Dual bolted eyelet terminals (inline) Hardware Included: Main current sensor assembly with integrated copper busbar (mounting bolts and wiring harness pigtail are not included). Key Features High-Current Capacity – The solid, thick copper busbar allows for direct inline integration into high-amperage battery, alternator, or inverter circuits with minimal electrical resistance or voltage drop. Integrated Sensing Electronics – The robust plastic overmold encapsulates and protects the sensitive measurement components (such as Hall-effect sensors or precision shunt resistors) from moisture, dust, and harsh under-hood environments. Standardized 4-Pin Interface – Equipped with a shrouded 4-pin connector designed to accept a locking automotive weather-pack style plug, ensuring a secure, vibration-resistant connection to the vehicle's telemetry system. Heavy-Duty Mounting – The thick copper mounting tabs feature pre-punched holes for secure bolting directly to battery terminals, power distribution boxes, or maxi-fuse blocks. Ideal For: Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) Battery Management Systems (BMS) Modern internal combustion vehicles with auto start-stop or smart alternator charging systems Custom dual-battery power setups for RVs, marine, and overlanding applications Industrial DC power monitoring and energy storage systems (ESS)