ES103 High-current Energy Storage Connector for Battery Modules
Product specification
| Housing Material | PA66-GF |
| Terminal Material | Copper alloy,silver-plated |
| Plugging Times | 200 times |
| Error-proofing | 4 keying options, polarized to prevent reverse insertion |
| 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 |
| Ambient Temperature | -40℃~+125℃ |
| Salt Spray | 96H |
| Altitude | 4000m |
| Protection Rating | IPXXB IP67 |
| Flame Retardant Rating | UL94 V-0 |
| Certification | UL 4128;EN 61984（TUV） |
Product Drawing
Order Information
|
Plug P/N |
Socket P/N |
Color |
Wire Range |
|
ES103-03C120-1SYW-06 |
ES103-01M8-1SYW-07 |
Black |
350A-120mm² |
|
ES103-03C120-2SYX-06 |
ES103-01M8-2SYX-07 |
Orange |
350A-120mm² |
|
ES103-03C95-1SYW-06 |
ES103-01M8-1SYW-07 |
Black |
330A-95mm² |
|
ES103-03C95-2SYX-06 |
ES103-01M8-2SYX-07 |
Orange |
330A-95mm² |
|
ES103-03C70-1SYW-06 |
ES103-01M8-1SYW-07 |
Black |
280A-70mm² |
|
ES103-03C70-2SYX-06 |
ES103-01M8-2SYX-07 |
Orange |
280A-70mm² |
|
ES103-03C50-1SYW-06 |
ES103-01M8-1SYW-07 |
Black |
250A-50mm² |
|
ES103-03C50-2SYX-06 |
ES103-01M8-2SYX-07 |
Orange |
250A-50mm² |
Product Description
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The secondary lock buckle structure designThe secondary lock buckle structure design enhances error-proofing, safety, and reliability. As the system continuously undergoes thermal expansion/contraction and minor vibrations from charge-discharge cycles, the secondary lock is critical for ensuring long-term connection stability. During maintenance, standardized procedures require first releasing the secondary lock before disengaging the primary lock, enabling safe disconnection
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Dual Anti-Mismating SystemSafety and error-proofing are paramount in high-voltage, high-current systems. This connector incorporates a robust two-layer protection strategy. First, a visual color-coding system using distinct black and orange housings provides immediate, intuitive identification for positive and negative poles, preventing mistakes at a glance. Second, this is reinforced by a physical polarized keying mechanism. The connector housing features a unique asymmetrical design that makes it physically impossible to mate incorrect poles together.
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Comprehensive Safety ProtectionThis connector is engineered with holistic safety as a core principle. It features a fully integrated finger-safe design that completely shrouds the live electrical contacts. This design serves a dual purpose: it effectively prevents accidental human contact with energized terminals, mitigating electrocution risk, and simultaneously blocks the ingress of foreign particles and debris (such as metal dust or tools) that could cause short circuits. This comprehensive protection is maintained throughout the connector's mating and unmating cycle, ensuring a safe operating environment for technicians.
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Quick InstallationRecognizing the need for efficiency in volume production, this connector is designed for rapid and tool-less installation. It incorporates an intuitive push-to-release mechanism that allows for fast, secure mating and unmating without the need for additional tools or complex procedures. This translates directly into increased production throughput, lower labor costs, and simplified maintenance operations.
Sanco provides one-stop manufacturing solutions covering the entire process from product design, mold development and production, stamping and CNC machining, plating and spraying, to final assembly and inspection.
Our R&D team of 200 experts and professional laboratories enable us to independently execute product structure design, CAE simulation analysis, performance validation, and in-house mold design and manufacturing. Equipped with specialized mold technicians and advanced machinery (including slow wire cutting, fast wire cutting, medium wire cutting, and CNC machines achieving machining accuracy up to 0.02mm), we produce terminals through cold heading or CNC processes and complete plating in-house. Plastic raw materials are thermally baked and injection molded with terminals, followed by assembly via both manual and automated equipment for final shipment. With our professional production and quality assurance teams, we ensure efficient and precise execution at every stage..
Sanco testing center is equipped with standard test site, professional testing team, more than 100 sets of advanced testing equipment, can scientifically operate according to ISO/IEC/UL/GB/GJB and other laboratory accreditation standards, establish a sound quality management system.
In March 2021, it was officially recognized by the China National Accreditation Service for Conformity Assessment (CNAS). It is conducive to improving its own management and technical capabilities, providing a full range of quality plans for products, and increasing customers' trust in Sanco and core market competitiveness.
The 10.3mm terminal size has become a highly popular standard in large-scale Energy Storage Systems (ESS). This dimension optimally balances current-carrying capacity, structural strength, and spatial requirements, making it an ideal choice for applications ranging from 100A to 350A and beyond. Its robust design ensures reliable performance in high-power scenarios while maintaining compact form factors essential for modern battery pack configurations. The widespread adoption of this size across the industry further demonstrates its versatility and reliability in meeting the demanding requirements of contemporary energy storage solutions.
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FAQ
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