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High-Current Energy Storage Connector ES103 for Battery Modules - China Suppliers & Factory Certified for Safety
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High-Current Energy Storage Connector ES103 for Battery Modules - China Suppliers & Factory Certified for Safety

The ES103 Series Battery Energy Storage Connector is expertly crafted in China for high-voltage positive and negative connections between battery packs used in energy storage systems. This reliable connector is essential for the efficient operation of Battery Energy Storage Systems (BESS). Designed by leading suppliers in the industry, the ES103 features a robust 10.3mm diameter terminal, delivering outstanding current-carrying capabilities with configurations that support up to 350A (120mm²), Our innovative connector accommodates various current and wiring needs, making it a versatile choice for manufacturers and users alike. The ES103 incorporates a secondary lock buckle mechanism for quick, secure mating and unmating processes, while its 4-position polarized keying system effectively prevents mismating, significantly enhancing installation reliability, As a factory-approved component, the ES103 Series meets international safety standards, including UL 4128 and EN 61984 (TUV), ensuring safe and efficient connectivity for your energy storage needs. Trust in our China-made solution to power your Battery Energy Storage Systems with confidence

    Rated Current
    250A-50mm² / 280A-70mm² / 330A-95mm² / 350A-120mm²
    Rated Voltage
    DC1500V
    Withstand Voltage
    AC 6800V
    Insulation Resistance
    ≥500MΩ
    Contact Resistance
    ≤0.3mΩ
    Temperature Rise
    ≤45K
    Frequently Asked Questions
    What is the rated current for different wire sizes?
    The rated current capacity varies by wire cross-section: 250A for 50mm², 280A for 70mm², 330A for 95mm², and 350A for 120mm².
    What is the maximum rated voltage this system can handle?
    This system is designed to support a high-voltage capacity with a rated voltage of DC1500V.
    What is the withstand voltage rating of this product?
    It features an exceptional withstand voltage performance rating of AC 6800V.
    What are the insulation and contact resistance specifications?
    The system ensures reliable safety and efficiency with an insulation resistance of ≥500MΩ and a very low contact resistance of ≤0.3mΩ.
    What is the maximum allowable temperature rise?
    Under standard operating conditions, the temperature rise is highly controlled and limited to ≤45K.