ES103 High-Current Battery Energy Storage Connector from China Suppliers Factory – Reliable BESS Connector with UL & EN Certifications
| 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
Q1: What is the rated current for different wire cross-sections?
The rated current varies by wire size: 250A for 50mm², 280A for 70mm², 330A for 95mm², and 350A for 120mm².
Q2: What is the rated voltage of this component?
The rated voltage capacity is DC1500V, making it suitable for high-voltage DC applications.
Q3: What is the withstand voltage specification?
It features a withstand voltage rating of AC 6800V to ensure safe operation under electrical stress.
Q4: What are the insulation and contact resistance levels?
The insulation resistance is ≥500MΩ, while the contact resistance is kept extremely low at ≤0.3mΩ for optimal conductivity.
Q5: What is the maximum temperature rise limits?
The temperature rise during operation is rated at ≤45K, ensuring stable thermal performance.





